• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A rainwater drainage assembly is provided, comprising a channel band to be placed on top of a base band and having at least one internal channel. A gutter element is provided to be placed on a front face of the channel belt. Rainwater is drained in a stepped manner. In a first step, the rainwater is infiltrated into the subsoil through the permeable gutter elements. In a second step, the rainwater is quickly carried away via passages formed by the internal channels. In a third step, the rainwater is infiltrated into the subsoil via a permeable base belt. The stepped manner of draining rainwater contributes to optimum operation of the stormwater drain assembly in providing rapid drainage while simultaneously preventing clogging. The stormwater drainage assembly is useful for increasing a drainage capacity of existing streets within a built-up area.
    公开号:BE1027180B1
    申请号:E20205005
    申请日:2020-01-08
    公开日:2021-06-03
    发明作者:Ricky Bron；Frank Sander KOLDERIE
    申请人:Struyk Verwo Infra B V；
    IPC主号:
    专利说明:

    -1- BE2020/5005 P33895BE00/KHO Title: Rainwater drainage assembly and method for improving a drainage capacity for draining rainwater from a road.
    The present invention relates to a rainwater drainage assembly for improving a drainage capacity of a road construction, in particular of a non-permeable road construction.
    Roads can have different drainage capacities. Roads can have a very open structure, such as roads made of very open asphalt concrete (also known as ZOAB). The porous asphalt is configured to absorb and drain rainwater quickly. In general, the collected rainwater is discharged laterally to a berm along a road edge. This porous asphalt is mainly used in rural areas, for example to provide highways.
    Other roads are characterized by their closed road surface and are mainly located in an urban environment. Such a closed road surface is not configured to absorb rainwater, but to discharge rainwater laterally over the road surface.
    Due to a slight curvature of the road, rainwater will flow to a street gutter at a road edge. Such roads are often constructed with paving stones. Streets in built-up areas often consist of closely spaced paving stones with a sidewalk adjacent to the street. Such streets within built-up areas generally have poor drainage capacity. The paving stones are placed against each other and do not allow water to flow through to the subsoil. Often all the rainwater is simply drained through the street gutter to be carried away via an underlying sewer. Today's extreme weather conditions make it clear that gutters are no longer sufficient to drain rainwater.
    More particularly, the invention relates to a stormwater drainage assembly and a method for improving a drainage capacity of a road with an impermeable road surface. In particular, the invention relates to a method for improving a drainage capacity of an existing road construction with an impermeable road surface. More particularly, the invention relates to a method for improving a drainage capacity of an existing street within a built-up area, which street is provided with an elevation, in particular a sidewalk, on at least one of the road edges.
    -2- BE2020/5005 JPHO9177016 discloses a stormwater drainage facility that can be installed along a road edge.
    During installation, an infiltration trench is created along the road edge.
    The infiltration ditch is formed by a ditch with a quantity of crushed stone.
    A drainage pipe can be placed in the trench.
    In a next step, a delimiting band is placed on top of the infiltration trench to limit the way of a road edge.
    A water-permeable block is placed between the delimiting tire and the road.
    The water-permeable block has a gutter on a top surface formed by a depression.
    The block is made of porous concrete to allow the rainwater to sink into the underlying infiltration trench.
    A drawback of this known rainwater drainage facility is that its drainage capacity is limited.
    It takes time for the rainwater to seep through the porous permeable block.
    In heavy rain, the gutter will overflow and rainwater will flow back to the road surface.
    A backflow of rainwater to the road surface can have an adverse effect on the properties of the road surface.
    Puddles can increase the risk of aquaplaning or even make the road inaccessible.
    JP3154026U discloses a stormwater drainage device that can be installed along a road edge.
    Here too, an infiltration ditch will be constructed along the road edge.
    The infiltration trench is formed by a trench filled with high porosity monolithic crushed stone.
    A solid drain block is placed on top of the infiltration trench.
    The drain block is provided to allow a passage of rainwater to the infiltration trench.
    The drain block is an L-type precast concrete block.
    An upper body of the drainage block forms an excellent boundary for demarcating a path from a sidewalk.
    A lower body of the drain block forms a drain body.
    The drainage body has a sloping top surface that forms a gutter for collecting rainwater that runs off a road surface.
    A plurality of overflow openings are provided at the top surface, which overflow openings communicate with a cavity at an underside of the drain block.
    The cavity serves as a storage area for collecting rainwater.
    Collected rainwater in the storage area will then seep through and infiltrate into the infiltration trench.
    In addition to the overflow openings in the top surface, the drain block further has rainwater passages formed by slits on a side face of the drain block.
    Rainwater flowing through a permeable top layer of the road can flow through these slots into the storage area below the drain block.
    -3- BE2020/5005 Compared to the known rainwater drainage device of JPHO9177016, this known drainage block is advantageous because the drainage block is suitable for draining a larger amount of rainwater in a short period of time. The drainage block can offer a solution for improving the drainage capacity of an existing road. However, the known drain block has the drawback that it is sensitive to blockage by dirt from the street. Especially in a neighborhood with trees, this well-known drain block will quickly become clogged by fallen leaves. Once the fallen leaves have passed the overflow openings and are trapped in the storage space under the drain block, it is hardly possible to clear such a blockage. It is hardly possible to reach the storage area with a cleaning tool. As a result, this drain block loses its drainage capacity after a short time.
    A so-called Permeoblok is known that the company Nijmeegse Betonindustrie De Hamer B.V. is produced that can also be used to increase a discharge capacity at a road edge. The Permeoblok is a two-part block-shaped belt made of porous concrete. The Permeoblok belt has a lower portion which includes a discharge tube in a longitudinal direction. The discharge pipe is formed by a recess. An upper part is provided to cover the discharge pipe. The upper part fits onto the lower part and has an upper surface that is slightly convex. A series of these Permeo blocks can be placed along a road edge to replace an existing impermeable street gutter. Rainwater will flow laterally from the road surface to the gutter formed by Permeo blocks at the road edge and then the rainwater will penetrate into the porous Permeo blocks.
    The street gutter made of Permeo blocks is comparable to the rainwater drainage system from JPHO9177016. A major drawback of such a street gutter composed of these Permeo blocks is that these Permeo blocks are susceptible to clogging over time. To prevent clogging, the supplier advises to clean the Permeo blocks every year by means of a vacuum. According to the advice, vacuum cleaners with a special suction nozzle achieve an optimal cleaning result in order to maintain the infiltration capacity of the porous Permeo blocks. Such special cleanings are undesirable and increase maintenance costs.
    The general object of the present invention is to at least partially obviate the above drawbacks and/or to provide a useful alternative. More specifically, it is an object of the invention to improve a rainwater drainage assembly by increasing its drainage capacity and/or reducing any clogging.
    -4- BE2020/5005 According to the invention, this object is achieved with a rainwater drainage assembly according to claim 1.
    The stormwater drainage assembly serves to be placed along a road edge of a road, which is in particular an impermeable road with a closed road surface. More in particular, the rainwater drainage assembly is provided to be placed within a built-up area. The rainwater drainage assembly allows drainage of rainwater from a road surface to a subsoil. The rainwater drainage assembly provides infiltration of rainwater into the subsoil around the assembly. The stormwater drainage assembly is constructible using a channel band, a base band and a gutter member. Preferably, the stormwater drainage assembly is constructible using three types of belts, i.e., a channel belt, a base belt, and a gutter belt. The dimensions of the tires are matched to each other in order to obtain a good functioning of the rainwater drainage assembly. The channel belt has an upper portion for providing a raised road boundary along the road edge. Usually the elevated road boundary delimits a sidewalk from the road, an inhabited street. The channel band is elongated and usually has a length of about 1 m. The channel band is cuboidal. Preferably, the channel band is made of a solid material, in particular solid concrete. The channel band has a first end face and a second end face. The channel belt has an upper surface and a lower surface which must face the substrate. The channel tire has a front face which should face the road in the assembly and a rear face which should face away from the road in the assembly. The channel belt has a lower portion that includes at least one inner channel for rainwater runoff. The inner channel provides a passage from the front face to the bottom face of the channel band. The inner channel has an inlet opening on the front face and an outlet opening on the lower face of the channel band. The baseband is arranged to support the channel band. Usually the base band has the same length as the channel band. The base band is elongated and block-shaped. The base band has a first end face and a second end face, a front face, a back face, a bottom face and a top face. The top surface forms a support surface for supporting the channel band. A relevant feature of the base belt is that the base belt is made of a permeable material, in particular porous concrete.
    -5- BE2020/5005 With this, the base belt enables infiltration of rainwater and the flow of rainwater into the subsoil around the assembly. The combination of the channel belt and the permeable base belt thus contributes to the infiltration of rainwater into the subsoil.
    The gutter element is adapted to be placed between the road edge and the channel belt in an upper region of the rainwater drainage assembly. The gutter element is made of a permeable material that is designed for infiltration by rainwater.
    In particular, the permeable material of the gutter element and the base band provide an open structure to allow an infiltration of rainwater runoff of at least 270l/s*ha. More specifically, the permeable material of the baseband and the gutter element meets the requirements for water infiltration as defined in NEN-EN 1338 and NEN-EN 1339 which prescribe a water infiltration of at least 5.4x10*m/s as an average value of measurements on three elements and of at least 2.7x10*m/s for each individual measurement.
    The gutter element must be placed against the front face of the channel belt. Preferably, the gutter element is adjacent and more preferably in direct contact with the channel belt to aid in proper flow of rainwater from the gutter element to the channel belt. The gutter element can be formed by a paving stone. Like the channel band and the base band, the gutter element may be formed as a band. The gutter element can be elongate and block-shaped. The gutter element has a first end face and a second end face, a front face, a rear face, a bottom face and a top face. The upper surface of the gutter element forms an access surface to allow rainwater to enter the gutter element through infiltration.
    The rainwater drainage assembly according to the invention can offer various advantages which will be explained below.
    A great advantage of the rainwater drainage assembly is that it provides a drainage of rainwater runoff, wherein a quantity of rainwater infiltrates into the subsoil. Infiltration is beneficial for preventing sewer overload and controlling groundwater levels during dry periods of the year.
    A further advantage of the rainwater drainage assembly is that it provides rapid drainage of rainwater to remove rainwater from the road surface. Rainwater can go quickly
    -6- BE2020/5005 are discharged from the road through the internal channels of the channel tires. These internal channels provide large passages with low flow resistance.
    An important advantage of the rainwater drainage assembly according to the invention is that it provides a stepped drainage. Rainwater flows in successive steps from a road surface via the gutter element, the channel belt and the base belt respectively. In a first step the rainwater is infiltrated into the permeable gutter element, in a second step guided through the internal channel of the channel belt and in a third step infiltrated into the permeable base belt. This stepped discharge contributes to long-term operational performance of the assembly and reduces maintenance. The successive steps of infiltrate-pass-infiltrate, respectively, contribute to a reduction of clogging of the assembly and thus reduce the consequences of clogging. The first step of infiltration through a permeable gutter element provides a separation step in which particles are sieved from the rainwater. The first step helps to reduce clogging of the underlying baseband. The gutter elements are located at the upper region of the assembly, which allows for easy removal and replacement. Thus, even when clogging occurs in a gutter element and increases to an undesired level, it is easy to replace a clogged gutter element on the road surface with a clean gutter element.
    It is preferable to build the stormwater drainage assembly with gutter straps because gutter straps allow easy replacement, but in addition, a structure of straps is robust and stable over time.
    Another advantage of the rainwater drainage assembly according to the invention is that the channel belt to be placed on top of the base belt can be placed accurately at a predetermined height level relative to the road surface or pavement. Unlike a trench filled with coarse stones, the base belt can accurately define a height. The accurate placement of the channel and base bands contributes to optimum performance of the stormwater drainage assembly. Both the channel belt and the base belt have some functional features for draining rainwater. The precise positioning of the tires ensures that the functional features are in the correct position to achieve the optimum performance.
    The channel band has at least one internal channel which defines such a functional feature of the discharge assembly. Preferably, the internal channel is positioned relative to the top surface of the gutter element such that an internal channel opening is just
    -7- BE2020/5005 is positioned above the top surface of the gutter element. Rainwater flowing over the top surface of the gutter element then flows directly into the inner channel opening and is discharged through the inner channel to the base belt. Placing the channel band at an accurate height relative to the top surface of the gutter element hereby contributes to a rapid drainage of rainwater. This is especially beneficial during heavy rainfall. Preferably, the channel band is bonded on top of the base band by means of an adhesive material, for example mortar. A layer of adhesive material can be used for a fine adjustment of a height position of the channel belt. The layer of adhesive material is placed between the channel band and the base band. The layer of adhesive material may have a thickness of about 5 mm. The adhesive material may be water permeable. Preferably, no adhesive material is provided in the region of the at least one outlet opening of the inner channel of the channel band. An area of the top surface of the base band that is aligned with the outlet opening of the inner channel of the channel band remains free of adhesive material to prevent any infiltration resistance. The gutter element has a top surface which is such a functional feature of the stormwater drainage assembly that must be accurately positioned to achieve optimum operation. The top surface of the gutter element must be positioned at a predetermined height relative to the road surface. The gutter element of permeable material has an upper surface which is preferably positioned at a height level just above the road surface, in particular projecting at least 1 cm above the road surface. The raised gutter element hereby provides a protruding obstacle that prevents a quantity of dirt particles from flowing over the top surface of the gutter element. The amount of dirt particles will remain behind the protruding obstacle on the road surface. Blocking dirt particles before they flow over the top surface of the gutter element helps to reduce clogging of the gutter element.
    A further advantage of the rainwater drainage assembly is that the assembly can serve as a replacement assembly for a renovation of an existing road construction. An existing gutter assembly can be replaced by the rainwater drainage assembly according to the invention in order to increase drainage capacity of the existing road construction. The use of tires enables rapid installation of the rainwater drainage assembly, which minimizes the impact on traffic during road works.
    -8- BE2020/5005 In one embodiment of the rainwater drainage assembly according to the invention, the internal channel of the channel band is formed by at least one hollow section. The concave portion is a recess that is open on the front face and bottom face of the channel band. Preferably, the recess interrupts a corner edge formed by the front face and the bottom face of the channel band. Instead of a tubular internal channel, the recess advantageously permits the use of a simple mold during the production of the channel band. In one embodiment of the rainwater drainage assembly according to the invention, the base belt comprises a drainage pipe for draining rainwater. The drainage pipe forms a drainage channel for the drainage of rainwater. The discharge tube extends in a longitudinal direction of the belt. The discharge tube extends from the first end face to the second end face. The base tire discharge tube is beneficial in increasing the capacity of the assembly to rapidly drain rainwater from the road structure. The presence of the drainage pipe is beneficial to anticipate heavy rain showers.
    Preferably, the discharge tube of the base band is formed by a recess on the top surface of the base band. The recess is open at the top face and extends from the first end face to the second end face. Forming the discharge tube by providing an elongated recess in the top surface makes a production process for manufacturing the base belt very simple. A simple mold can be used to manufacture the base belt. On occasion, a lower portion of the known Permeoblock can be used to serve as a baseband.
    In one embodiment of the rainwater drainage assembly according to the invention, the support surface of the base belt is configured to receive the channel belt in a form-fitting manner. The form fit between the base band and the channel band prevents lateral movement of the channel band relative to the base band. A shift of the channel band with respect to the base band is prevented. In particular, a shift in a rearward direction, i.e. in a direction away from the road, is prevented by the positive fit. Advantageously, the form fit secures the relative positions of the base band and the channel band, which contributes to a correct operation of the rainwater drainage assembly.
    Preferably, the form fit is provided by at least one upstanding portion which forms a stop for locating the channel band relative to the base band. In particular
    -9- BE2020/5005 the upright portion is formed by a ridge which preferably engages the channel band from the outside.
    In one embodiment of the rainwater drainage assembly according to the invention, the base band has dimensions to support both the gutter element and the channel band. The base band support surface is configured to support both the gutter member and the channel band. Preferably, the support surface comprises a first and a second upright portion, in particular a first and second ridge, which are spaced apart to accommodate at least one of the channel band and the gutter element. In an embodiment of the rainwater drainage assembly according to the invention, the gutter element is homogeneous in cross section. The gutter element is arranged without a drain pipe. The gutter element only achieves infiltration of rainwater. Advantageously, the very simple structure of the gutter element enables a simple production process. Since all types of tires of the stormwater drainage assembly can be manufactured through a simple production process, the stormwater drainage assembly can provide a cost-effective solution for many situations where improved stormwater drainage from a road is desired. Furthermore, the invention relates to a rainwater drainage assembly as described above in an assembled state. The invention relates to a road construction provided with the rainwater discharge assembly described above.
    In an embodiment of the rainwater drainage assembly according to the invention and in an assembled state, the top surface of the gutter element is placed above the road surface. The gutter element extends above the road surface to form a ridge-shaped obstacle. The ledge forms an obstacle for passing dirt particles that flow along with the rainwater. A quantity of dirt particles, such as leaves and sand, will remain behind the ledge and will not flow further to the tires of the stormwater drainage assembly. Advantageously, by blocking dirt particles, the ridge contributes to the prevention of clogging of the rainwater discharge assembly.
    Due to the elevated position above the road surface, the gutter element is preferably provided with a blunt edge. A corner edge bounding the top face and the front face may be chamfered or rounded, which is beneficial for passing traffic.
    -10- BE2020/5005 In an embodiment of the rainwater drainage assembly according to the invention and in an assembled state, the at least one internal channel of the channel band extends to a higher level than the top surface of the gutter element.
    An internal channel opening is hereby obtained which enables rapid drainage of rainwater flowing over the gutter element through the internal channel opening.
    The invention further relates to a road construction, in particular a road construction in a built-up area, comprising a rainwater drainage assembly according to the invention.
    In particular, the road construction comprises a road with an impermeable road surface.
    The invention further relates to a method for draining rainwater from a road surface, in particular from a non-permeable road surface, by making use of the rainwater drainage system according to the invention.
    As a result of the method, the rainwater will be infiltrated into a subsoil around the rainwater discharge assembly.
    In an embodiment of the method according to the invention, the method is a renovation method for improving the drainage capacity of an existing road.
    Further embodiments are defined in the subclaims.
    The invention will be further explained with reference to the attached drawings.
    The drawings show a practical embodiment according to the invention, which should not be construed as limiting the scope of the invention.
    In addition to the embodiment shown, specific features may also be considered and taken into account in a broader context as a distinguishing feature not only for the embodiment shown, but also as a common feature for all embodiments falling within the scope of the appended claims, wherein: FIG. 1 shows a cross-sectional view of the rainwater drainage assembly in an embodiment according to the invention; fig. 2 shows an exemplary embodiment of a channel band; fig. 3A shows a front view of an exemplary embodiment of a base belt; fig. 3B is a side view of the base band of FIG. 3A shows; fig. 4 shows a cross-sectional view of another embodiment of the rainwater drainage assembly according to the invention;
    -11- BE2020/5005 Figs. 5 shows an enlarged view of a predetermined elevation of an upper surface of the gutter element relative to the road surface; fig. 6 shows an enlarged elevation view of an internal channel of the channel band relative to the top surface of the gutter member to provide an opening. In the drawings, the same reference characters are used to designate identical or functionally similar parts. For the understanding of the description and the claims, the words vertical, horizontal, longitudinal, cross-section — with reference to gravity and to the X,Y, Z coordinate system shown in the drawings — have been used in a non-limiting manner. The Z axis determines a height or vertical direction. The X and Y axes define a horizontal plane. The X direction defines a frontal direction to a road. The X direction is characteristic of a width of parts. The Y direction defines a longitudinal direction parallel to the road.
    Assembly Figure 1 shows an embodiment of a rainwater drainage assembly 9 according to the invention. The stormwater drainage assembly 9, an urban drainage system, is placed between a road 1 and a sidewalk 4. The road 1 comprises a top layer which provides a road surface 2. The sidewalk 4, which may include a foundation 6, has a sidewalk surface 5 that is elevated with respect to the road surface 2. In the figures, the sidewalk 4 is located behind the road 1. The rainwater drainage assembly 9 is placed along a road edge 3 of a road 1. to allow drainage of rainwater originating from a road surface 2 to a subsoil U. As indicated by reference characters F,B, the sidewalk 4 is at the rear B and the road 1 is at the front F. Figure 1 shows a first embodiment of the stormwater drainage assembly 9. The stormwater drainage assembly 9 is made up of three types of tires, i.e. a channel belt 10, a base belt 20 and a gutter element 30. The gutter element may be in the form of a belt or paving stone, e.g. a paving stone of 20x40cm. Building the rainwater drainage assembly 9 with tires 10, 20 is advantageous because the construction made of tires is robust and stable in the long run. The use of a channel belt and base belt is essential because such an assembly allows each belt to be accurately positioned, leading to a correct placement of the functional features of the stormwater drainage assembly 9. Accurate placement of the belts is necessary to obtain proper operation . In particular, the accurate placement of the
    -12- BE2020/5005 canal belt 10 contributes to the prevention of clogging, which will be explained in more detail with reference to figures 5 and 6. The rainwater drainage assembly 9 shown in figure 1 is constructed by a channel belt of solid concrete on top of a permeable base belt 20 to place. The base belt 20 supports the channel belt 10. A gutter element 30 which is also made of a permeable material is placed between the road edge 3 and the channel belt 10 . Preferably, as shown in Figure 4, the gutter element 4 is also supported by the base band 20 to achieve a stable and accurate positioning. The gutter element 10 can be attached to the channel element 10 .
    Each tire 10, 20 and the gutter element 30 makes its own technical contribution to the operation of the rainwater drainage assembly 9. Arrows in figure 1 indicate a drainage path, a runoff of rainwater from the road surface 2 to the ground U around the rainwater drainage assembly. First, a stream of rainwater from the road surface 2 flows over the gutter element 20. Part of the amount of rainwater will infiltrate into the permeable gutter element 20 and then into the subsoil U. Another amount of rainwater will flow over or through the gutter element 2 to the channel belt 10. flow. Rainwater will flow rapidly through passageways from the channel band 10 to the underlying base band 20 . The base belt 20 allows further infiltration of rainwater into the ground U around the rainwater discharge assembly 9.
    The rainwater drainage assembly 9 has such dimensions that the assembly can advantageously be used as a replacement assembly to replace an existing gutter assembly. The existing gutter assembly can be replaced to increase a drainage capacity of the existing road structure. The rainwater drainage assembly 9 is hereby configured for use in a method for renovating an existing road construction, in particular in an existing street within a built-up area. In one step of the method, tires and a gutter, for example made of a series of paving stones, are removed from the road structure. Subsequently, in a next step a trench is dug in preparation for a placement of the rainwater discharge assembly 9. After the trench is ready, the rainwater discharge assembly 9 is placed in the trench. The installed rainwater discharge assembly 9 provides infiltration of rainwater to a subsoil U which the existing road construction did not provide. The renovation method in which use is made of the rainwater discharge assembly 9 hereby contributes to a mitigation of the consequences of extreme and heavy rain. In addition, rainwater that flows through the
    -13- BE2020/5005 subsoil is included contribute to maintaining a desired groundwater level during dry periods.
    Channel belt As shown in Figures 1 and 2, the channel belt 10 has an upper portion 11 to provide a raised road boundary. The upper part 11 bridges a difference in height between the road surface 2 and the sidewalk surface 5. The channel belt 10 is elongate and block-shaped. Usually, the channel band has a length of about 100 cm, a width of about 20 cm and a height of about 25 cm. The channel band 10 has first and second end faces 101, 102 configured to form a plurality of channel bands together in a longitudinal direction. The first and second end faces 101, 102 are each provided with a male/female engagement element to allow the end faces of aligned channel bands to engage one another. The channel belt 10 has an upper surface 103 and a lower surface 104. The channel belt 10 has a front surface 105 and a rear surface 106. After placement, when the rainwater drainage assembly is used, the front surface 105 faces the road 1 . The channel belt 10 has an outlet of rainwater through at least one internal channel 13. Here, the channel belt 10 has two internal channels 13 spaced from each other. Alternatively, the channel band 10 may have a single internal channel which may have a wider dimension. The inner channel 13 is open in a lower portion at the front face 105 and the inner channel 13 is open at the lower surface 104 so that the inner channel 13 forms a passageway for admitting laterally entering rainwater from the gutter element 20. flows through and deflects downwards towards the subsurface U. The inner channel 13 is formed by a hollow portion extending from the front surface 105 to the lower surface 104. The inner channel 13 has an inlet opening 14 on the front surface 105 and an outlet opening 15 on the lower surface.
    104. Here the concave portion extends over a corner edge between the front face 105 and the bottom face 104. Instead of an internal channel formed by a tubular shape, the concave portion interrupts the corner edge allowing use of a simple mold in the production of the channel band.
    Baseband Figures 3A and 3B, respectively, show a front and side view of an embodiment of the baseband 20. The baseband 20 is elongate and block-shaped. The base band 20 is made
    -14- BE2020/5005 of a permeable material, such as porous concrete, to effect infiltration of rainwater into the subsoil U. In a preferred embodiment, the base band 20 is formed by a lower part of a so-called Permeoblock.
    The base band 20 has an upper surface 203, also called a support surface, which is adapted to support the channel band 10 . The channel band 10 is stackable on the base band 20 . The base band 20 preferably has the same length as the channel band 10. The channel band 10 is preferably fixed to the support surface of the base band 20 by means of mortar. To prevent a closure of the outlet opening of the inner channel 13, the grout is applied to the lower surface 104 of the channel band 10 before the channel band is placed on the base band. As shown in Figure 4, the support surface 203 may be configured to receive the channel band 10 in a form-fitting manner. The positive engagement between the channel band 10 and the base band 20 prevents lateral movement of the channel band 10 relative to the base band 20. In particular, a backward movement of the channel band 10 relative to the base band 20 is prevented. For example, the lower portion 12 of the channel band 10 may be received in a chamber provided in the top surface 203 of the base band 20 . Here, lateral movement is prevented by a raised portion, a ledge or a pin, on the top face
    203.
    As shown in the embodiment of Figure 4, the channel band 10 and the gutter element 30 are received together within two opposing ridges 22.1, 22.2. The opposing ridges externally engage the channel band and the gutter element. The two opposite ridges enclose the channel band 10 and the gutter element 30 such that the gutter element 30 is firmly positioned against the channel band 10 . A fixed position of the gutter element 30 against the channel belt 10 is desirable to prevent rainwater from leaking between the belts. In addition to the opposite ridges, other structures are conceivable for placing the gutter element 30 and the channel band 10 against each other. For example, a pin-to-hole connection can perform this function as well.
    The base strap 20 has a first and second end face 201, 202. As indicated above with respect to the channel strap 10, the end faces 201, 202 of the base strap 20 are here also provided with a male-female gripping means for engaging base straps through a male-female connection. to interconnect.
    -15- BE2020/5005 The base belt 20 is provided with a discharge tube 21 formed by a recess in an upper surface 203. The recess extends from the first to the second end surface 201,
    202. The discharge tube 21 formed by the recess can serve to collect dirt and flush it away through the discharge tube 21. In this way, the discharge tube 21 contributes to the prevention of clogging of the permeable lower part of the base belt 20.
    Gutter element Gutter element 30 is shown in figures 1 and 4 and is here formed by a band which is elongate and block-shaped. The gutter element 30 is made of a permeable material, e.g. porous concrete, which allows infiltration of rainwater. The permeable material of the gutter element 30 provides an open structure to allow infiltration of rainwater. Preferably, the gutter element 30 is simply provided without a drain pipe. The gutter element 30 thus serves only for infiltration of rainwater to the subsoil U and a flow to the adjacent channel belt 10.
    The gutter element 30 has a front surface 305 to be placed abutting against the road edge 3. The gutter element 30 has a rear surface 306 to be placed abutting the front face 105 of the channel belt 10. The gutter element 30 can be fixed to the front face 105 of the channel belt. Preferably, the gutter element is in direct contact with the channel band without any intermediate layers. Figure 5 shows in an enlarged view an advantageous feature of the gutter element 30. The gutter element 30 has a top surface 303 which is provided with a chamfered (as shown by the corner a) or rounded corner edge. The corner edge is obtuse because the gutter element 30 is preferably placed slightly elevated relative to the road. The blunt corner edge prevents wear on vehicles driving over it. The top surface 303 is located at a distance from the road surface 2. The top surface 303 is raised with respect to the road surface 2. This elevation provides an obstacle-forming ridge for dirt particles that are carried along in the rainwater stream. Dirt particles will remain behind the obstacle ledge formed by the elevation. These dirt particles will not overflow and infiltrate into the gutter element 30, which advantageously reduces clogging of the gutter element. Figure 6 shows how the gutter element 30 and the channel band 10 are adjusted in height to each other after placement of the assembly. The at least one internal channel 13 of the channel band 10 extends to a height level above the top surface 303 of the gutter element 30. Rainwater can pass over the gutter element 30 directly into an inlet opening 14.
    - 16 -
    BE2020/5005 flows extending above the top surface formed by the inner channel 13.
    The opening may have a height indicated by 'ii' of at least 2 cm, e.g. of about cm.
    The opening at a height level of the top surface 303 allows rainwater that has not infiltrated into the gutter element to enter the channel belt 10 .
    Because of the custom
    5 height levels, rainwater can be drained quickly, which is advantageous in heavy rainfall to drain rainwater from a road surface as quickly as possible.
    While the present invention has been described in detail, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as claimed below.
    It is intended that all such changes and modifications fall within the scope of the present disclosure and claims.
    Thus, the invention provides a rainwater drainage assembly and a method for improving a drainage capacity for draining rainwater from a road.
    A rainwater drainage assembly is provided, comprising a channel band to be placed on top of a base band and having at least one internal channel.
    A gutter element is provided to be placed on a front face of the channel belt.
    Rainwater is drained in a stepped manner.
    In a first step, the rainwater is infiltrated into the subsoil through the permeable gutter elements.
    In a second step, the rainwater is quickly carried away via passages formed by the internal channels.
    In a third step, the rainwater is infiltrated into the subsoil via a permeable base belt.
    The stepped manner of draining rainwater contributes to an optimal operation of the rainwater drain assembly by providing rapid drainage and at the same time preventing clogging.
    The stormwater drainage assembly is useful for increasing drainage capacity of existing streets within built-up areas.
    List of reference characters: 1 road 101 first end surface 2 road surface 40 102 second end surface 3 road edge 103 top surface 4 sidewalk 104 bottom surface 5 sidewalk surface 105 front surface 6 sidewalk foundation 106 rear surface 9 rainwater drainage assembly 45 11 upper part; road boundary 10 channel band 12 lower part
    -17- BE2020/5005 13 inner channel 14 inner channel inlet opening inner channel outlet opening 20 base band 201 first end face 202 second end face 203 top face; support surface 204 bottom surface 205 front surface 206 rear surface 21 drain pipe 22 upright portion; ledge gutter element 301 first end face 302 second end face 303 top face 304 bottom face 305 front face 306 rear face F front B rear i elevation gutter element ii inlet opening internal channel height distance U ground
    权利要求:
    Claims (20)
    [1]
    Rainwater drainage assembly (9) for placement along a road edge (3) of a road (1) to effect drainage of rainwater from a road surface (2) to a subsoil (U), the stormwater drainage assembly (9) comprising: - a channel belt (10) having an upper portion (11) for providing a raised road boundary along the road edge, the channel belt (10) being elongate and block-shaped and having a first end face and a second end face (101, 102), an upper surface (103), a lower surface (104) in use to face the ground, and a front face (105) in use to face the road, and a rear face (108) in use of the should face away, wherein a lower portion of the elongate channel band (10) includes at least one inner channel (13) for draining rainwater, the inner channel (13) providing a passage from the front face (105) to the lower face (104): - a base b and (20) for supporting the channel band (10), the base band (20) being elongated and made of permeable material for rainwater infiltration and the base band being block-shaped, comprising a first end face and a second end face (201, 202) ), a front face (205), a rear face (206), a bottom face (204) and a top face (203) forming a support face for supporting the channel band (10); - a gutter element (30) configured to be placed between the road edge (3) and the channel belt (10) against the front face (105) of the canal belt, the gutter element being elongated and made of permeable material for rainwater infiltration, wherein the gutter element is block-shaped, comprising a first end face and a second end face (301, 302), a top face (303), a bottom face (304) and a front face (305) and a rear face (306).
    [2]
    Rainwater drainage assembly (9) according to claim 1, wherein the inner channel (13) is formed by at least one recess open on the front face (105) and the bottom face (104) of the channel band.
    [3]
    Rainwater drainage assembly (9) according to claim 2, wherein the inner channel (13) interrupts a corner edge of the bottom surface (104) and the front surface (105).
    [4]
    Rainwater drainage assembly (9) according to any one of the preceding claims, wherein the base band (20) comprises a drainage pipe (21) for draining rainwater, the drainage pipe extending from the first end face to the second end face.
    -19- BE2020/5005
    [5]
    The stormwater drainage assembly (9) according to claim 4, wherein the drainage tube (21) is formed by an elongate recess on the top surface (203) of the base band.
    [6]
    A stormwater drainage assembly (9) according to any preceding claim, wherein the support surface (203) is configured to receive the channel band (10) in a form-fitting manner to prevent lateral movement of the channel band (10) relative to the base band (20 ), in particular to prevent lateral movement in a rearward direction.
    [7]
    Rainwater drainage assembly (9) according to claim 6, wherein the support surface (203) comprises at least one upright portion (22) which forms a stop for placing the channel band (10), in particular the upright portion being formed by a ridge (22.1) which engages the channel band from the outside.
    [8]
    Rainwater drainage assembly (9) according to any preceding claim, wherein the support surface (203) is configured to support both the channel band and the gutter element.
    [9]
    Rainwater drainage assembly (9) according to claim 8, wherein the support surface (203) comprises a first and a second upstanding portion (22.1, 22.2) spaced apart to accommodate at least one of the channel band and the gutter element. take.
    [10]
    Rainwater drainage assembly (9) according to any one of the preceding claims, wherein the gutter element (30) has a blunt edge defining the top face (303) and the front face (305).
    [11]
    Rainwater drainage assembly (9) according to any one of the preceding claims, wherein the channel band (10) is placed on top of the base band (20) and wherein the gutter element (30) is placed against the front face (105) of the channel band, in particular the channel band is secured to the base band by means of an adhesive material, e.g. a grout, with no adhesive material applied at an outlet opening (15) of the inner channel (13), such that a stream of rainwater is free in the base band ( 20) can infiltrate.
    [12]
    A stormwater drainage assembly (9) according to claim 11, wherein the upper surface of the gutter element is positioned above the road surface such that the gutter element extends above the road surface to form a ridge-shaped obstacle to prevent dirt particles from flowing to the stormwater drainage assembly.
    - 20 - BE2020/5005
    [13]
    The stormwater drainage assembly (9) of claim 12, wherein the gutter element (30) has a blunt edge defining the top face (303) and the front face (305).
    [14]
    Rainwater drainage assembly (9) according to any one of claims 11 to 13, wherein both the channel band (10) and the gutter element (30) are supported by the base band (20).
    [15]
    Rainwater drainage assembly (9) according to any one of claims 11 -14, wherein the at least one internal channel (13) of the channel band (10) extends to a height level (ii) which is higher than the top surface (303) of the gutter element (30) to form an internal channel opening (14).
    [16]
    Road construction comprising a rainwater drainage assembly (9) according to any one of the preceding claims.
    [17]
    A method for draining rainwater from a road (1) by placing a rainwater drain assembly (9) according to any one of claims 1-15.
    [18]
    A method according to claim 17, wherein the method concerns a renovation method for renovating an existing road, in particular a street within a built-up area, comprising: - removing an existing gutter arranged along the road edge (3); - digging a trench along the edge of the road; - stacking a base belt (20), a channel belt (10) and a gutter element (30) in the trench.
    [19]
    A method according to claim 17 or 18, comprising the step of placing the top surface (303) of the gutter element (30) at a higher level than the road surface (2).
    [20]
    A method according to any one of claims 17-19, comprising the step of placing the channel band (10) at a height level with respect to the top surface (303) of the gutter element (30) such that an inlet opening of the at least one internal channel (13) extends above the top surface of the gutter element.
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    同族专利:
    公开号 | 公开日
    NL2022355B1|2020-08-13|
    BE1027180A1|2020-11-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    NL9101642A|1991-09-27|1993-04-16|Struyk Holding B V|Element which is suitable for a road or the like|
    JPH09177016A|1995-12-26|1997-07-08|Ngk Insulators Ltd|Water permeable drain ditch|
    CN207484193U|2017-09-14|2018-06-12|中国城市规划设计研究院|Permeable road structure|
    JP3154026U|2009-02-10|2009-10-08|正剛 大嶋|Overflow penetration combined drainage block|
    法律状态:
    2021-07-15| FG| Patent granted|Effective date: 20210603 |
    优先权:
    申请号 | 申请日 | 专利标题
    NL2022355A|NL2022355B1|2019-01-08|2019-01-08|Rainwater drainage assembly and a method for improving a drainage capacity for draining away rainwater from a road.|
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