• 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 method of arranging a foundation pile in a bottom, comprising the following steps: - providing a tube assembly comprising a tube with a tube centerline, which tube forms an inner space, a drill bit being mounted on the distal end or insertion end of the tube, wherein the drill bit is provided with at least one blade, the drill bit being provided with at least one outwardly opening passage which can be brought into fluid communication with the inner space, - the inserting of the tube into the bottom with rotating drill bit at the bottom end, according to an infeed path, in which the blade of the rotating drill chuck loosens the soil material, - the pressing of grout to the passage in the drill blade during the first part of the infeed trait under the first pressure through the inner space, - the pressing of the grout from the passage so that the grout can mix with soil material loosened by the drill bit, in particular sandy soil material, note that the relative displacement of grout or mixture of grout 20 with soil material in the proximal direction is limited by a fastener attached thereto, in particular to the chuck, extending near the distal end of the tube assembly, substantially relative to it. tube centerline radially outwardly extending transverse plate or flange located on the proximal side of the chuck. 25
    公开号:NL2024129A
    申请号:NL2024129
    申请日:2019-10-31
    公开日:2020-05-14
    发明作者:Verhoef Adrianus；Willem Lehmann Reijer
    申请人:Verhoef Funderingstechnieken Bv；
    IPC主号:
    专利说明:

    Method and device for the applicator! of a foundation pile in the ground
    BACKGROUND OF THE INVENTION
    The invention relates to a method and device for arranging a foundation pile in a ground.
    It is known to realize foundation piles in a soil by means of the screw injection process. In the process, a tube made up of tube pieces provided at the distal end with a screw blade and pile point is first forced into the ground in a rotating manner. During this process, grout is delivered from an opening located near the pile tip. The released grout mixes with loosened soil material and forms a grout shell around the tube. After the desired depth has been reached with the pile tip, a reinforcement cage is placed in the tube and the tube is filled with concrete.
    The screw injection method makes it possible to install foundation piles in a soil in a low-vibration manner. It is advantageous that the grout husk can increase the bearing capacity of the pile.
    Although such foundation piles have proven themselves in practice, there is a continuing need for a (further) increase in the load-bearing capacity to be delivered by the foundation piles, so that fewer piles are required for a construction to be built.
    SUMMARY OF THE INVENTION
    An object of the invention is to provide a method for arranging a foundation pile in a ground according to a controlled screw injection process with which the foundation pile to be realized can obtain a high design load-bearing capacity.
    An object of the invention is to provide a tube assembly for a foundation pile for a screw injection process with which the foundation pile to be realized can obtain a high design load-bearing capacity.
    In one aspect, the invention provides a method of arranging a foundation pile in a bottom, comprising the following steps:
    - providing a tube assembly comprising a tube with a tube centerline, which tube forms an inner space, a drill bit being mounted on the distal end or input end of the tube, the drill bit being provided with at least one knife, the drill bit being provided with at least one outwardly opening passage which can be brought into fluid communication with the inner space,
    -with the rotary chuck at the bottom end inserting the tube into the soil, according to an input path, in which the blade loosens soil material from the rotating chuck,
    -pressing grout during the first part of the infeed section under a first pressure or pressing in a first pressure range via the inner space to the passage in the drill blade,
    -pressing the grout from the passage so that the grout can mix with soil material loosened by the drill bit, in particular sandy soil material,
    -in which the relative displacement of grout or mixture of grout with soil material in proximal direction is limited by a fastening thereto, in particular to the drill bit, mounted near the distal end of the tube assembly, extending radially substantially with respect to the tube axis outwardly extending transverse plate or flange located on the proximal side of the chuck.
    An increased pressure in the vicinity of the drill bit can hereby be realized. At a downwardly moving drilling point, the transverse plate provides, as it were, for downward propulsion of the created grout soil material mixture. This can promote mixing in the area below the cross plate. Furthermore, the penetration of the grout into open spaces between the grains of still undisturbed soil material can be promoted, which can be favorable for the drilling process and for the mixture formation. After installation, the surface of the cross plate can be included in the load bearing calculations.
    In one embodiment, use is made of a tube assembly in which the transverse plate is provided with openings, wherein during the introduction of the tube assembly into the soil, a mixture of grout-bottom material passes through the openings from the distal side of the transverse plate to the proximal side thereof, to form a grout husk around the pipe.
    The tube assembly used may include projections extending distally from the cross-plate, the projections having a mixing action on the loosened bottom material and grout by rotation of the projections.
    Mixing is enhanced if the protrusions extend obliquely downward, with the drill bit rotated so that the protrusions extend obliquely in the direction of rotation.
    In the tube assembly used, if the projections are located at the apertures, and the drill bit is rotated, the mixture located under the cross plate can be passed through the projections to the distal side of the cross plate.
    In a preferred embodiment use is made of the aforementioned tube assembly, wherein, when projecting on a plane of projection transverse to the tube axis, the protrusions cover the openings at least for the most part. As a result, despite the presence of the openings in the cross plate, almost the entire surface of the cross plate can still be effective in transfer of vertical forces and thus be included in load bearing calculations.
    In a further development of the method according to the invention use is made of a tube assembly, the drill head of which comprises a drill blade and a blade held therein, projecting in the distal direction thereof, the passage being arranged in the drill blade and preferably viewed in the direction of rotation. flows behind the knife. This allows the grout to cool the part holding the blade, the drill bit, while flowing through the passage in the drill bit. This is advantageous, since the temperature on the drill bit can become higher than the temperature (on the order of 30 degrees) at which the grout can solidify / bind, causing lump formation that could hinder mixture formation and the flow of mixture through the cross plate .
    In an embodiment thereof, use is made of a tube assembly with a drill blade, the passage opening outwards with a directional component in the distal direction,
    - whereby the grout is pressed out of the passage with a downward directional component so that the grout penetrates into bottom material located directly below the drill head.
    The mixing of grout with soil material, in particular sand, can hereby be promoted, which is favorable for the strength of a grout shell formed around the tube and for the carrying capacity of the bottom area under the formed foundation pile.
    In particular, the grout can be pressed out of the passage with a distal and a radial directional component so that the grout also penetrates obliquely to the side of bottom material located below the rotary chuck.
    In a further development of the method according to the invention, after it has been determined that the drill bit has been introduced into the soil at the desired depth, the rotation of the drill bit is stopped but the pressing of the grout with a downward direction component is continued. at a third pressure increased, in particular multiply increased, relative to the first pressure range. In this way, over a relatively large soil area, next to and under the drill head, grout can be forced into the open spaces between grains of the soil material (in particular sand), whereby the ultimately realized carrying capacity is further increased. The transverse plate can hereby act in hindering an upward movement of the grout, thereby promoting lateral and downward spreading.
    The first pressure range may be of the order of 5-20 bar, preferably of the order of 10-15 bar. The imposed pressure in the first pressure range may increase with depth in a range, in order to keep the delivered grout flow rate per unit of infeed length, at a constant infeed speed, to form a uniform grout shell thickness in the pipe direction around the tube. The third pressure can be on the order of 50-150 bar, preferably about 100 bar. The applied pressures / pressure ranges and delivered grout flow rates can be selected depending on the predetermined soil conditions / structure.
    In an embodiment in which the bottom comprises one or more sand-containing layers as the first section of the track and one or more clay and / or peat-containing layers as the second section of the section, the drill bit is rotated at a higher speed during the passage through the first section of the section than during the passage through the second path portions, and as the passage through the second path portions, the grout is pressed out of the drill bit at a pressure in a second pressure range that is lower than the first pressure range. When going through a clay layer or peat layer, it will rotate minimally and much less grout will be released. The relatively thin grout shell is there mainly to protect against rusting on the pipe.
    The method according to the invention can be applied to several types of pile foundations.
    In a first embodiment, the tube is rotated with the drill bit. The tube may be made of steel and form the outer surface of the tube assembly during insertion into the soil, transferring downward forces and rotational forces to the drill bit by means of the tube.
    In a second embodiment, the tube assembly comprises a hollow post, in particular a precast concrete post, which forms the outer surface of the tube assembly during insertion, a rotary driven drill rod extending through the lumen of the post and attached to the drill bit.
    In both cases, in the condition where the drill bit is at the desired depth, the inner space of the pipe can be provided with a reinforcement and filled with concrete. The tube remains in the bottom, fixedly connected to the cross plate, which can be attached to the bottom end of the tube and closes down the interior.
    From a further aspect, the invention provides a tube assembly for forming a foundation pile, comprising a tube with a tube centerline, which tube forms an inner space with a drill bit on the distal end or input end of the tube, the drill bit being provided of at least one outwardly opening passage fluidly communicable with the inner space, a transverse plate or flange being provided at the distal end of the tube and at the proximal side of the drill bit, in particular mounted on the drill bit, which extends radially outwardly from the tube with respect to the tube axis and forms a circumferential flange. The plate / flange is substantially perpendicular to the tube axis.
    The cross plate may include openings that form a passage for a mixture flow of grout and bottoms from the distal side of the cross plate to its proximal side.
    The cross plate may include projections extending distally from the cross plate to provide a mixing action on soil material and grout loosened by the drill bit. The protrusions can extend obliquely from the cross plate in distal and tangential direction.
    The protrusions can be located at the location of the openings and form guides to the openings. The protrusions can be easily formed from the material of the cross plate. This can be done, for example, by cutting the cross plate locally and bending areas of the cross plate adjacent to the cuts, to the distal side, as lips. The cuts can extend in the radial and possibly also in the tangential direction, in particular up to the peripheral edge of the cross plate.
    When projecting on a plane of projection transverse to the tube axis, the protrusions can at least largely cover the openings.
    In a further development of the tube assembly, the drill bit comprises a drill bit and at least one blade held thereon, the drill bit being provided with the passage, the passage preferably opening outward with a directional component in the distal direction, in an embodiment combined with a directional component in outward radial direction. The mouth of the passage may be in the direction of rotation directly behind the knife, the knife extending in distal direction past the mouth.
    In one embodiment, the drill bit is plate-shaped and extends diametrically over the drill bit, parallel to the axial plane of the tube, and has edges extending distally and radially inwardly, from which respective blades extend in distal and tangential directions.
    As previously noted, the drill bit can be rotational with the tube, mounted thereon, the tube being made of steel and forming the outer surface of the tube assembly.
    Alternatively, the pipe assembly may comprise a hollow precast concrete pile, which forms the outer surface of the pipe assembly. The drill bit may then be mounted for rotation on a drill rod extending through the hollow post.
    In a further development, the tube on the proximal side of the drill bit, in the presence of the cross plate on the proximal side of the cross plate, comprises at least one radially outwardly extending strip extending in the proximal direction. This can form a so-called beaver plate / mixing blades, which is known per se from screw injection piles.
    From a further aspect, the invention provides an arrangement for making a foundation pile in a bottom, comprising a tube assembly according to the invention and a device for forcing into the soil and rotating the tube assembly around the tube axis, a supply of grout and a device for pressing grout from the stock into the inner space of the pipe to press the grout from the passage into the drill bit.
    The aspects and measures described in this description and claims of the application and / or the aspects and measures shown in the drawings of this application can, where possible, also be applied separately from one another. Those separate aspects may be the subject of divisional patent applications aimed at them. This applies in particular to the measures and aspects that are described per se in the subclaims.
    BRIEF DESCRIPTION OF THE DRAWINGS
    The invention will be elucidated on the basis of an exemplary embodiment shown in the attached drawings. Shown in:
    Figures 1A-F show an oblique distal view, an oblique proximal view, a first side view, a second side view, a section according to IE, and an end view of a drill bit for a tube assembly according to the invention;
    Figures 2A-F show successive stages in inserting a tube assembly according to the invention into a bottom; and
    Figure 3 is a schematic view of a state in which the tube assembly is brought to depth and reinforcement is placed therein.
    DETAILED DESCRIPTION OF THE DRAWINGS
    The drill tip 10 shown in Figures 1A-F comprises a center drill blade 11 which is substantially V-shaped in side view and carries two blades 12a, 12b. The drill blade 11 is composed of three steel plates 11a, 11b and plate 11c located between them, which plates are permanently joined together to form one whole. The plates 11a and 11b each have one free bevel 15a, 15b, and are extended on the other bevel 17a, 17b by a blade 12a, 12b which is integral with the respective plate 11a, 11b. The plate 11c has two beveled edges 15c, which are flush with beveled edges 15a, 15b, respectively.
    The knives 12a, 12b are turned in the opposite direction, such that in the operative condition they are both directed in the direction of rotation A. The knives have a cutting tooth 13a, 13b which in this example is provided with notches 14a, 14b.
    The drill bit 11 is permanently attached to a transverse plate 20, which is permanently attached to the distal end of a tube 30. The transverse plate 20 is perpendicular to the axis S of the tube 30. The transverse plate 20 has a peripheral edge 24, from which the transverse plate 20 is cut at regularly spaced locations by arcuate cuts 23 extending radially inwardly, with a tangential directional component, to the circumference of the tube 30. At the location of arcuate, more or less radial fold lines 25, lips 21 are bent out toward the distal side of the transverse plate 20, so that openings 22 are formed in the transverse plate 20, regularly distributed around the circumference. The lips 21 all also extend in the direction of rotation. Figures 1E and 1F show that in projection the transverse plate 20 with lips 21 forms an almost contiguous circular surface.
    Inside the tube 30, a transverse plate 20 is provided with a chamber 40 which is connected proximally through opening 42 to a grout supply conduit 41. On the distal side of the chamber 40, it is in fluid communication with passages 16a, 16b extending into the plate 11c and opening into both edges 15c, in the distal and radially outward directions. Inside the chamber 40 is a (not shown) sphere which acts as a one-way valve to allow grout to pass in the distal direction but to stop in the proximal direction.
    In Figures 1C and 1D, the drill bit 10 can be seen as part of a pipe assembly 1, with pipe 30 and grout supply pipe 41. On the outer surface of pipe 30 are mounted two strips 31a, 31b, each extending over half a pipe circumference, oblique, in proximal direction and in counter-rotation direction.
    The pipe assembly 1 can be deployed in a manner as illustrated with reference to Figures 2A-F. The pipe assembly 1 is intended to form part of a foundation pile in soil 100. The soil 100 here is, for example, built up at ground level. adjacent top layer 102, a clay layer 103 and a sand layer 104.
    In figure 2A a lower part of a pipe assembly 1 is kept vertical by means of an installation not shown with a broker. The tube is engaged by a rotary drive on the installation and forced downward from the installation so that the drill bit tube 30 is both rotated in direction A and moved downward in direction B to pass through the top layer 102. In Figure 2B, the tip of the drill bit 10 has arrived at the clay layer 103, and the grout pump on the plant is activated. The grout pump is set to a second flow rate, and thus to a corresponding (second) (operating) pressure range.
    The drill bit 10 and tube 30 are rotated at a first speed A1. The grout is delivered from the drill bit 10 to the clay layer, directions D1, via feed line 41, direction L1, chamber 40 opening 42 and passages 16a, 16b. The mixing of the grout with the clay is limited here, most of the grout moves relative to the downwardly moving drill bit 10 through the openings to form a grout shell 113 between the tube 30 and the clay layer 103, see figure 2C.
    The tube 30 is constructed of tube segments, each time the proximal end of a tube segment has come close to ground level 101, a subsequent tube segment is coupled and engaged with the linear and rotary actuators.
    When the drill bit 10 has arrived at the sand layer 104, the rotation speed (A2) is increased and also the grout flow rate to be supplied by the grout pump. The grout is now supplied per unit of input length with a larger flow rate, at a first (working) pressure within a first pressure range, which first pressure is higher than the aforementioned (second) pressure, through the supply line 41 in direction L2 and with a higher force in distal and radially outward directions D2 delivered beyond the respective blades 12a, 12b. This released grout can have an agitating effect on the sand body and can penetrate pores between the sand grains and thereby effect a softening effect. The knives 12a, 12b loosen sand from the sand layer, the rotating drill blade 11 ensures a mixing of sand with grout. The transverse plate 20 exerts a downwardly driving influence on the grout-sand mixture, which can be conducive to the penetration of the grout released into the sand body.
    The imposed pressure in the first pressure range may increase with depth in a range, in order to keep the delivered grout flow rate per unit of input length almost constant, in view of a regular thickness of the grout shell around the tube, viewed in the pipe direction. The same applies to the second pressure in the second pressure range. The first and second pressure ranges can partly overlap, depending on the soil composition present in the respective sections.
    The rotational and downwardly extending lips 21 increase the amount of mixing. The grout-sand mixture eventually moves relative to the downwardly moving drill bit 10 through the openings 22 in the transverse plate 20 and forms a relatively thick grout shell 114 around the tube 30, see Figures 2D and 2E.
    During the introduction of the tube assembly 1 into the ground, the co-rotating strips 31a, 31b ensure some mixing of the material of the grout husk and the immediate vicinity. The strips 31a, 31b function as a so-called beaver plate.
    The grout flowing through the drill blade 11 has a cooling effect on its material, allowing the temperature to remain so low that the grout does not solidify / bind and lump formation is prevented.
    When the drill bit 10 has arrived at the desired depth in the sand layer 104, the grout pump is operated at a third, multiple operating pressure relative to the first pressure range, to push the grout in direction L3 through supply line 41 to the drill bit 10. There the grout spouts with great force from the passages 16a, 16, in distal and radially outward directions D3. The drill bit 10 can be rotated a few times at relatively low speed, possibly in the opposite direction.
    The cross plate 20 hinders an upward movement of the now dispensed grout. The grout penetrates the sand body over a considerable distance, see figure 3.
    After the grout supply has been stopped and the installation has been disconnected from the upper pipe segment, the grout supply pipe 41 can be disconnected from the chamber 40 and a reinforcement cage 50 can be lowered into the inner space 32 of the pipe 30. Then, the interior space 32 can be filled with concrete to substantially complete the foundation pile.
    As can be seen in Figure 3, the vast majority of the grout-compacted area lies below the cross plate. This part can be included in the calculation of the bearing capacity of the foundation pile. The surface of the transverse plate, considered in projection on a horizontal plane, can also be included in that calculation, because the transverse plate forms a stable substantially horizontal foundation plane.
    The inclined position of the blades also provides more surface area for power transfer (vertical).
    The shape and size of the openings in the cross plate are determined experimentally. Prior to a work, one has insight into the soil structure by probing and thus the soil volume.
    The drill bit offers freedom of choice instead of additional grout dispensing holes.
    The invention (s) is / are in no way limited to the embodiments shown and described in the drawings and description. The above description is included to illustrate the operation of preferred embodiments of the invention, and not to limit the scope of the invention. Based on the above explanation, many skilled in the art will appreciate many variations that fall within the spirit and scope of the present invention. Variations are possible of the parts shown in the drawings and described in the description. They can be used separately in other embodiments of the invention (s). Parts of different given examples can be combined with each other.
    权利要求:
    Claims (15)
    [1]
    CONCLUSIONS
    A method for arranging a foundation pile in a ground, comprising the following steps:
    - providing a tube assembly comprising a tube with a tube centerline, which tube forms an inner space, a drill bit being mounted on the distal end or input end of the tube, the drill bit being provided with at least one knife, the drill bit being provided with at least one outwardly opening passage which can be brought into fluid communication with the inner space,
    -the insertion of the pipe into the ground at the bottom end with a rotary drill head, in accordance with an input path, in which the blade loosens soil material from the rotary drill head,
    -pressing grout during the first part of the infeed section under a first pressure or pressing in a first pressure range via the inner space to the passage in the drill blade,
    -pressing the grout from the passage so that the grout can mix with soil material loosened by the drill bit, in particular sandy soil material,
    -characterized in that the relative displacement of grout or mixture of grout with soil material in proximal direction is limited by fastening thereto, in particular to the chuck, extending near the distal end of the pipe assembly, substantially relative to it. the tube centerline radially outwardly extending transverse plate or flange, which is located on the proximal side of the drill bit.
    [2]
    A method according to claim 1, wherein the used tube assembly in the cross plate is provided with openings, wherein during the introduction of the tube assembly into the bottom, mixture of grout-bottom material passes through the openings from the distal side of the cross plate to the proximal side thereof to form a grout shell around the tube, wherein, preferably, the used tube assembly is provided with protrusions extending distally from the transverse plate, the protrusions having a mixing action on the loosened bottom material and the grout, wherein, preferably, in the tube assembly used, the projections are located at the location of the openings, and / or wherein, preferably, the projections extend obliquely downward, the drill bit being rotated so that the projections extend obliquely in the direction of rotation.
    [3]
    A method according to claim 1 or 2, wherein in the used tube assembly, when projecting on a plane of projection transverse to the tube axis, the protrusions cover the openings at least for the most part.
    [4]
    A method according to any one of the preceding claims, or according to the preamble of claim 1, wherein use is made of a tube assembly, the drill bit of which comprises a drill blade and a blade held in the distal direction protruding therefrom, the passage being arranged in the drill blade and viewed in rotation direction, terminates behind the blade, preferably using a drill bit tube assembly wherein the passage opens outward with a directional component in the distal direction, the grout being pressed out of the passage with a downward directional component so that the grout penetrates into bottom material located directly below the chuck, wherein, preferably, the grout is forced out of the passage with a distal and a radial directional component so that the grout also penetrates obliquely to the side of, below the rotary chuck bottom material.
    [5]
    A method according to any one of the preceding claims, wherein the first pressure range is on the order of 5-20 bar, preferably on the order of 10-15 bar.
    [6]
    A method according to any one of the preceding claims, wherein after it is determined that the drill bit has been introduced into the soil at the desired depth, the rotation of the drill bit is stopped, but the pressing of the grout with a downward direction component is continued. a third pressure increased, in particular multiply increased, relative to the first pressure range, wherein, preferably, the third pressure is on the order of 50-150 bar, preferably about 100 bar.
    [7]
    A method according to any one of the preceding claims, wherein the bottom comprises one or more sand-containing layers as first section sections and one or more clay and / or peat-containing layers as second section sections, wherein the drill bit during passage through the first section sections at a higher speed is then rotated during the passage through the second path portions, during the passage through the second path portions the grout is pressed out of the drill bit at a second pressure in a second pressure range that is lower than the first pressure range.
    [8]
    A method according to any one of the preceding claims, wherein the tube is rotated the tube with the drill bit, wherein, preferably, the tube is made of steel and during insertion into the soil forms the outer surface of the tube assembly, whereby by means of the tube down forces and rotational forces are transferred to the drill bit.
    [9]
    A method according to any one of claims 1-7, wherein the tube assembly comprises a hollow post, in particular a hollow precast concrete pile, which hollow post which forms the outer surface of the tube assembly during insertion, a rotary driven drill rod extending through the lumen of the hollow post extends and is attached to the drill bit.
    [10]
    A method according to any one of the preceding claims, wherein in the condition in which the drill bit is at the desired depth, the inner space of the pipe is provided with a reinforcement and filled with concrete.
    [11]
    A tube assembly for forming a foundation pile, comprising a tube with a tube centerline, which tube forms an inner space, a drill bit being located on the distal end or input end of the tube, the drill bit having at least one outwardly opening passage which can be brought into fluid communication with the inner space, a transverse plate or flange being provided on the distal end of the tube and on the proximal side of the drill bit, in particular mounted on the drill bit, which is situated relative to the tube axis extends radially outwardly outside the tube and forms a circumferential flange, wherein, preferably, the cross plate includes openings that form a passage for a mixture flow of grout and bottoms from the distal side of the cross plate to its proximal side, and / or wherein the tube assembly is preferably provided with projections extending distally from the transverse plate for providing a mixing action on soil material and grout loosened by the chuck, wherein, preferably, the protrusions extend obliquely from the transverse plate in distal and tangential directions, wherein, preferably, the protrusions are located at the apertures and form guides to the openings.
    [12]
    Tube assembly according to claim 11, wherein the openings open radially in the circumferential edge of the cross plate and / or wherein the protrusions are formed by cutting the cross plate and deflecting areas of the cross plate adjacent to the cuts, wherein, preferably, when projecting on a plane of projection transverse to the tube axis, the protrusions cover the openings at least for the most part.
    [13]
    The pipe assembly according to claim 11 or 12, wherein the drill bit comprises a drill bit and at least one blade held thereon, the drill bit comprising the passage, the passage preferably opening outwardly with a directional component in the distal direction, in an embodiment combined with a directional component in the outward radial direction, wherein, preferably, the mouth of the passage is located in the direction of rotation directly behind the blade, the blade extending distally beyond the mouth and / or, preferably, the drill blade being plate-shaped, and extends diametrically across the drill bit, parallel to the axial plane of the tube, and has edges extending distally and radially inwardly, from which respective blades extend in the distal and tangential directions.
    [14]
    The pipe assembly according to claim 11, 12 or 13, wherein the drill bit is mounted on the pipe, wherein the pipe is made of steel and forms the outer surface of the pipe assembly, or wherein the pipe assembly comprises a hollow precast concrete pile, which comprises the outer surface of the tube assembly, and / or wherein, preferably, the tube on the proximal side of the chuck, in the presence of the transverse plate on the proximal side of the transverse plate, is provided with at least one circumferentially and proximally extending radially outwardly reaching strip.
    [15]
    An arrangement for making a foundation pile in a bottom, comprising a tube assembly according to any one of claims 11-14 and a device for forcing into the soil and rotating the tube assembly around the tube axis, a supply of grout and a device for pressing grout from the stock into the interior of the pipe to force the grout out of the passage into the drill bit.
    类似技术:
    公开号 | 公开日 | 专利标题
    NL2024129A|2020-05-14|Method for installing a foundation pile in the ground
    RU2370619C2|2009-10-20|Procedure and facility for drilling holes in soil
    CN1928262B|2011-06-08|Trench wall cutting structure
    US4274675A|1981-06-23|Shaft-sinking apparatus with milling head and central worm conveyor
    JP4741898B2|2011-08-10|A machine that excavates a groove and forms a wall in the groove
    JP3133466U|2007-07-12|Drilling head of ground improvement column construction equipment
    KR100797845B1|2008-01-24|Deep mixing wall-foundation system
    JP4728194B2|2011-07-20|Drilling head
    JP2007297859A|2007-11-15|Borer
    JP5033257B1|2012-09-26|Shield tunneling machine
    JP5112110B2|2013-01-09|Cutter head for crushing existing buried pipe
    US1826087A|1931-10-06|Apparatus for drilling wells
    US2088369A|1937-07-27|Ditch grading or cutting machine
    US10458184B2|2019-10-29|Ground processing tool and a method for creating a borehole in the ground
    DE3011578A1|1981-10-01|Vertical shaft sinking machine - has rotary cutting head at end of pivoted arm suspended beneath platform
    KR20080048057A|2008-05-30|A machine for making a continuous wall in the ground
    DE102013110730B4|2015-10-01|Method and apparatus for removing soil material in front of the pressure wall of a shield tunneling machine | and a cutting wheel for the device
    JP7012960B2|2022-01-31|Cutter board and shield excavator equipped with it
    GB2354023A|2001-03-14|Displacement hole forming tool
    KR101661616B1|2016-09-30|The slope flattening device
    JP2021098969A|2021-07-01|Center cutter for tunneling machine
    JP2009150101A|2009-07-09|Corotation preventing blade of excavating and agitating device
    US1113952A|1914-10-20|Trench-digging machine.
    JP2018178673A|2018-11-15|Column construction apparatus
    JP2012021271A|2012-02-02|Soil improvement device and soil improvement method
    同族专利:
    公开号 | 公开日
    EP3647497A3|2020-06-10|
    NL2024129B1|2020-09-22|
    EP3647497A2|2020-05-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3354657A|1965-05-03|1967-11-28|Lee A Turzillo|Method for installing anchoring or supporting columns in situ|
    JPS5792218A|1980-11-29|1982-06-08|Marugo Kiso Kogyo Kk|Laying work of ready-made pile|
    JP2010126975A|2008-11-27|2010-06-10|Chiyoda Geotech Co Ltd|Rotatingly penetrated steel pipe and method of using the same|
    KR101135163B1|2011-06-10|2012-04-16|세안종합건설|Grout injection and replacement device and the soft ground foundation concrete pile using the same method|
    KR20140039589A|2012-09-24|2014-04-02|최성희|Pile with reinforced tip|
    CN111894451A|2020-07-27|2020-11-06|中交路桥建设有限公司|Rotary drilling pile foundation construction method for stratum combining aeolian sand, sand gravel and gravel|
    CN111894452A|2020-07-27|2020-11-06|中交路桥建设有限公司|Combined drilling method for end-bearing pile of aeolian sand deep-covering tuff stratum|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NL2021918|2018-11-01|
    [返回顶部]