CN113266011A - Novel composite pile enclosure device - Google Patents
Novel composite pile enclosure device Download PDFInfo
- Publication number
- CN113266011A CN113266011A CN202110465282.2A CN202110465282A CN113266011A CN 113266011 A CN113266011 A CN 113266011A CN 202110465282 A CN202110465282 A CN 202110465282A CN 113266011 A CN113266011 A CN 113266011A
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- China
- Prior art keywords
- plate
- frame
- water
- composite pile
- enclosure device
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- 239000002131 composite material Substances 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 230000000903 blocking effect Effects 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 5
- 239000002689 soil Substances 0.000 abstract description 26
- 230000004888 barrier function Effects 0.000 abstract 1
- 238000005457 optimization Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000012466 permeate Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/08—Removing obstacles
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses a novel composite pile enclosure device which structurally comprises an enclosure device, a touch plate and a fixing frame, wherein the touch plate is riveted with the outer side of the enclosure device, the enclosure device penetrates through the inner position of the fixing frame and can carry more water through a concave surface on a water plate, thereby leading the water-carrying plate to extrude the water in the external frame outwards, leading the water in the pipe body to be gradually discharged to the periphery of the pipe body, because the water quantity extruded by the external frame at a time is not large, the soil around the pipe body can not be washed out, the condition that the soil at the bottom of the pipe body is washed out when the composite pile is forcibly inserted into the pipe body is effectively avoided, the plate surface can slide and contract towards the middle part along the pulling strip by pulling the plate surface by the barrier block, thereby the face can block the soil of external world when outer row mechanism stops to outwards discharge moisture.
Description
Technical Field
The invention relates to the technical field of composite piles, in particular to a novel composite pile enclosure device.
Background
The composite pile enclosure frame is mainly used for carrying out peripheral soil reinforcement's equipment to the composite pile driving, through with inside the composite pile enclosure frame inserts soil earlier, stretch into the pipeline that composite pile passes through composite pile enclosure frame middle part again to can make the smooth pile of composite pile reinforce to the soil, based on the discovery of the inventor of above-mentioned description, a current novel composite pile enclosure device mainly has following not enoughly, for example:
the river-side soil contains more water, so that after the composite pile enclosure frame is inserted into the river-side soil, a large amount of water in the soil is easy to permeate into the composite pile enclosure frame through the bottom opening of the enclosure frame, and if the composite pile is forcibly inserted at the moment, water in the enclosure frame is easy to be pressed downwards, so that the soil below the composite pile enclosure frame is washed down by a large amount of water, and the composite pile enclosure frame is easy to be unstable and loose.
Disclosure of Invention
Aiming at the problems, the invention provides a novel composite pile enclosure device.
In order to achieve the purpose, the invention is realized by the following technical scheme: a novel composite pile enclosure device structurally comprises an enclosure device, a touch plate and a fixing frame, wherein the touch plate is riveted with the outer side of the enclosure device, and the enclosure device penetrates through the inner position of the fixing frame; the enclosure comprises an inner connecting pipe, an outer connecting frame and a connecting plate, wherein the side of the inner connecting pipe penetrates through the inner position of the outer connecting frame, and the connecting plate is arranged between the outer side of the inner connecting pipe and the inner wall of the outer connecting frame.
As a further optimization of the invention, the inner connecting tube comprises a tube body, a contact reducing surface and an outer discharge mechanism, wherein the tube body and the contact reducing surface are of an integrated structure, the outer discharge mechanism is embedded in the inner position of the tube body, and the contact reducing surface is of an arc concave surface structure.
As a further optimization of the invention, the outward discharging mechanism comprises a support frame, a rotating roller and an external frame, the support frame is connected with the inner wall of the external frame, the middle part of the rotating roller is movably clamped with the center position of the support frame, and the rotating roller can rotate along the support frame by thrust generated on the rotating roller by water extruded from the inside of the mechanism.
As a further optimization of the invention, the rotating roller comprises a water carrying plate, a limiting block, a middle fixing plate and an outward pushing strip, wherein the water carrying plate is in sliding fit with the inner part of the middle fixing plate, the limiting block is embedded and fixed at the outer surface position of the middle fixing plate, the outward pushing strip is arranged between the inner side of the water carrying plate and the inner wall of the middle fixing plate, and the outer surface of the water carrying plate is provided with an arc-shaped groove.
As a further optimization of the invention, the external frame comprises a pulling strip, two plate surfaces and two blocking blocks, wherein the plate surfaces are in sliding fit with the left side of the pulling strip, the blocking blocks are arranged between the plate surfaces and the inner wall of the pulling strip, and the two blocking blocks are uniformly and symmetrically distributed on the left side of the pulling strip.
As a further optimization of the invention, the plate surface comprises a position fixing plate, a built-in cavity, a water inlet cavity and a separating plate, wherein the built-in cavity is arranged at the inner position of the position fixing plate, the water inlet cavity is communicated with the built-in cavity, the right side of the separating plate is attached to the left side of the position fixing plate, and the water inlet cavity is of an internal and external through structure.
As a further optimization of the invention, the built-in cavity comprises an elastic frame, a ring body and a deformation sheet, wherein the right side of the elastic frame is attached to the right side of the inner wall of the ring body, the deformation sheet is connected with the inner wall of the ring body, and the deformation sheet is made of spring steel with certain elasticity.
As a further optimization of the invention, the separation plate comprises a rear frame, a front touch plate, a water permeable block and an extrusion block, the front touch plate is fixed at the left position of the rear frame, the water permeable block is embedded at the outer position of the inner wall of the front touch plate, the extrusion block is connected with the inner wall of the front touch plate, and the water permeable block is made of wear-resistant polyether sponge.
The invention has the following beneficial effects:
1. more moisture can be carried through the concave surface on the water board of taking to make the water board of taking can outwards extrude the inside moisture of external frame, thereby make the inside moisture of body can be arranged to the body gradually all around, because the water yield of external frame single extrusion is not big, thereby can not appear breaking down body soil all around, the effectual inside compound stake of inserting of having avoided the body by force then can lead to body bottom soil to be broken down the condition.
2. Through dragging that stops the piece and produce the panel, can make the face slide the shrink to the middle part along dragging the strip to make the face stop outside soil when the mechanism stops to discharge water outward and block, can effectually avoid outside soil to get into its inside condition through outer mechanism of arranging easily through above process.
Drawings
Fig. 1 is a schematic structural view of a novel composite pile enclosure device of the invention.
Fig. 2 is a schematic structural view of a front half section of the enclosure of the present invention.
FIG. 3 is a front half-sectional view of the inner joint pipe of the present invention.
Fig. 4 is a schematic structural view of a front half section of the outer discharge mechanism of the present invention.
FIG. 5 is a front half-section schematic view of a rotatable roller according to the present invention.
FIG. 6 is a front view of a half-section of the external frame according to the present invention.
FIG. 7 is a schematic structural diagram of a front half section of a plate surface according to the present invention.
FIG. 8 is a schematic structural diagram of a front cross-section of a built-in chamber according to the present invention.
FIG. 9 is a front half-section schematic view of the separation plate of the present invention.
In the figure: the device comprises a surrounding protector-1, an abutting plate-2, a fixed frame-3, an inner connecting pipe-11, an outer connecting frame-12, a connecting plate-13, a pipe body-a 1, a contact reducing surface-a 2, an outer discharging mechanism-a 3, a supporting frame-a 31, a rotating roller-a 32, an external frame-a 33, a water-carrying plate-b 1, a limiting block-b 2, a middle fixing plate-b 3, an outer pushing strip-b 4, a pulling strip-c 1, a plate surface-c 2, a blocking block-c 3, a position fixing plate-c 21, an internal cavity-c 22, a water inlet cavity-c 23, a separating plate-c 24, an elastic frame-d 1, a ring body-d 2, a deformation sheet-d 3, a rear frame-e 1, a front contact plate-e 2, a water permeable block-e 3 and an extrusion block-e 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-5:
the invention provides a novel composite pile enclosure device which structurally comprises an enclosure device 1, a touch plate 2 and a fixing frame 3, wherein the touch plate 2 is riveted with the outer side of the enclosure device 1, and the enclosure device 1 penetrates through the inner position of the fixing frame 3; the enclosure 1 comprises an inner pipe 11, an outer frame 12 and a connecting plate 13, wherein the side of the inner pipe 11 penetrates through the inner position of the outer frame 12, and the connecting plate 13 is arranged between the outer side of the inner pipe 11 and the inner wall of the outer frame 12.
The inner pipe 11 comprises a pipe body a1, a contact reducing surface a2 and an outer row mechanism a3, wherein the pipe body a1 and the contact reducing surface a2 are of an integrated structure, the outer row mechanism a3 is embedded in the pipe body a1, the contact reducing surface a2 is of an arc concave structure, and the contact area between the composite pile and the inner wall of the pipe body a1 can be reduced through the contact reducing surface a2, so that the composite pile can descend more smoothly.
The outer-row mechanism a3 comprises a supporting frame a31, a rotating roller a32 and an outer frame a33, wherein the supporting frame a31 is connected with the inner wall of the outer frame a33, the middle part of the rotating roller a32 is movably clamped with the center of the supporting frame a31, and the rotating roller a32 can rotate along the supporting frame a31 by the thrust generated by the moisture extruded from the inside of the mechanism on the rotating roller a32, so that the rotating roller a32 can take out the moisture from the inside of the mechanism.
The rotating roller a32 comprises a water carrying plate b1, a limiting block b2, a middle fixing plate b3 and an outward pushing strip b4, the water carrying plate b1 is in sliding fit with the inner portion of the middle fixing plate b3, the limiting block b2 is fixedly embedded in the outer surface of the middle fixing plate b3, the outward pushing strip b4 is installed between the inner side of the water carrying plate b1 and the inner wall of the middle fixing plate b3, and the outer surface of the water carrying plate b1 is provided with an arc-shaped groove, so that more moisture can be carried at one time.
The detailed use method and action of the embodiment are as follows:
in the invention, after the protector 1 is inserted into the river soil, the composite pile is inserted downwards through the inner connecting pipe 11, and then the water in the inner connecting pipe 11 is extruded through the composite pile, so that the water in the inner connecting pipe 11 can extrude the outer discharge mechanisms a3 at two sides, the rotating roller a32 can be pushed by water flow to rotate along the supporting frame a31, and then the concave surface on the water carrying plate b1 can carry more water, when the water carrying plate b1 rotates to be separated from the outer frame a33, the water carrying plate b1 can slide outwards along the middle fixing plate b3 by the thrust generated by the outer push strip b4 on the water carrying plate b1, so that the water in the outer frame a33 can be extruded outwards by the water carrying plate b1, the water in the pipe body a1 can be gradually discharged to the periphery of the outer frame a1, and the water amount extruded once collapse of the frame a33 is not large, so that the situation that the soil around the pipe body a1 can not be flushed, effectively avoiding the situation that the soil at the bottom of the pipe body a1 is washed out due to the fact that the composite pile is forcibly inserted into the pipe body a 1.
Example 2
As shown in fig. 6-9:
the external frame a33 comprises a pulling strip c1, a plate surface c2 and a blocking block c3, the plate surface c2 is in sliding fit with the left side of the pulling strip c1, the blocking block c3 is installed between the plate surface c2 and the inner wall of the pulling strip c1, two plate surfaces c2 are arranged, the two plate surfaces c2 are uniformly and symmetrically distributed on the left side of the pulling strip c1, the plate surface c2 is continuously pulled through the blocking block c3, the plate surface c2 can slide towards the middle part along the pulling strip c1, and therefore the plate surface c2 can block external soil.
The plate surface c2 comprises a position fixing plate c21, an internal cavity c22, a water inlet cavity c23 and a separating plate c24, the internal cavity c22 is mounted at the inner position of the position fixing plate c21, the water inlet cavity c23 is communicated with the internal cavity c22, the right side of the separating plate c24 is attached to the left side of the position fixing plate c21, the water inlet cavity c23 is of an internal and external through structure, and external water can be introduced into the internal cavity c22 through the water inlet cavity c 23.
The built-in cavity c22 comprises an elastic frame d1, a ring body d2 and a deformation sheet d3, the right side of the elastic frame d1 is attached to the right side of the inner wall of the ring body d2, the deformation sheet d3 is connected with the inner wall of the ring body d2, the deformation sheet d3 is made of spring steel with certain elasticity, the deformation sheet d3 can contract rightward and deform through extrusion of moisture extruded into the ring body d2 on the deformation sheet d3, and the moisture extruded into the ring body d2 can be rebounded and squeezed by the deformation sheet d3, so that the moisture extruded out of the ring body d 2.
The separation plate c24 comprises a rear frame e1, a front touch plate e2, a water permeable block e3 and a squeezing block e4, the front touch plate e2 is fixed at the left side of the rear frame e1, the water permeable block e3 is embedded in the outer position of the inner wall of the front touch plate e2, the squeezing block e4 is connected with the inner wall of the front touch plate e2, the water permeable block e3 is made of wear-resistant polyether sponge, and soil outside can be blocked by the water permeable block e 3.
The detailed use method and action of the embodiment are as follows:
in the invention, because the outer side of the outer discharge mechanism a3 is communicated with the outside, so that the outside soil can easily enter the inner side of the outer discharge mechanism a3, and the inner side of the outer discharge mechanism a3 is blocked when the soil is accumulated for a long time, the plate surface c2 can slide and contract towards the middle part along the pulling strip c1 by pulling the plate surface c2 through the blocking block c3, so that the plate surface c2 can block the outside soil when the outer discharge mechanism a3 stops discharging water outwards, part of the water discharged outwards by the outer discharge mechanism a3 can be guided into the built-in cavity c22 through the water inlet cavity c23, and the water entering the built-in cavity c22 presses the deformation sheet d3, so that the deformation sheet d3 can contract backwards, and the deformation sheet d3 can reversely deform to extrude the water inside the built-in cavity c22, so that the water inside the built-in cavity c22 can be discharged outwards through the front touch plate e2, and can block the soil of external world in the in-process of guaranteeing to arrange moisture outward through the piece e3 that permeates water, rethread extrusion piece e4 can be by the water current promote after the back and forth repeated flexible produce the extrusion to the piece e3 that permeates water, thereby make the inside remaining moisture of piece e3 that permeates water can be extruded, the small clearance can be separated out by the moisture that preceding touch panel e2 extruded to the soil that makes and separation panel c24 contact, in order to avoid the outside of face c2 to be lived by the soil adhesion, lead to face c2 to be difficult to the condition that expandes the use fast once more, can effectually avoid external soil to get into its inside condition through outer mechanism a3 easily through above process.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (8)
1. The utility model provides a novel composite pile enclosure device, its structure includes fender ware (1), conflict board (2), mount (3), the outside riveting of conflict board (2) and fender ware (1) is connected its characterized in that: the enclosure (1) penetrates through the inner position of the fixing frame (3);
the enclosure (1) comprises an inner pipe (11), an outer connecting frame (12) and a connecting plate (13), wherein the side of the inner pipe (11) penetrates through the inner position of the outer connecting frame (12), and the connecting plate (13) is arranged between the outer side of the inner pipe (11) and the inner wall of the outer connecting frame (12).
2. A novel composite pile enclosure device according to claim 1, characterized in that: the inner pipe (11) comprises a pipe body (a 1), a contact reduction surface (a 2) and an outer row mechanism (a 3), wherein the pipe body (a 1) and the contact reduction surface (a 2) are of an integrated structure, and the outer row mechanism (a 3) is embedded in the inner position of the pipe body (a 1).
3. A novel composite pile enclosure device according to claim 2, characterized in that: the outer-row mechanism (a 3) comprises a support frame (a 31), a rotating roller (a 32) and an outer frame (a 33), wherein the support frame (a 31) is connected with the inner wall of the outer frame (a 33), and the middle of the rotating roller (a 32) is movably clamped with the center of the support frame (a 31).
4. A novel composite pile enclosure device according to claim 3, characterized in that: the rotating roller (a 32) comprises a water carrying plate (b 1), a limiting block (b 2), a middle fixed plate (b 3) and an outward pushing strip (b 4), wherein the water carrying plate (b 1) is in sliding fit with the inner portion of the middle fixed plate (b 3), the limiting block (b 2) is fixedly embedded in the outer surface of the middle fixed plate (b 3), and the outward pushing strip (b 4) is installed between the inner side of the water carrying plate (b 1) and the inner wall of the middle fixed plate (b 3).
5. A novel composite pile enclosure device according to claim 3, characterized in that: the external frame (a 33) comprises a pulling strip (c 1), a plate surface (c 2) and a blocking block (c 3), wherein the plate surface (c 2) is in sliding fit with the left side of the pulling strip (c 1), and the blocking block (c 3) is installed between the plate surface (c 2) and the inner wall of the pulling strip (c 1).
6. A novel composite pile enclosure device according to claim 5, characterized in that: the plate surface (c 2) comprises a position fixing plate (c 21), a built-in cavity (c 22), a water inlet cavity (c 23) and a separating plate (c 24), the built-in cavity (c 22) is installed at the inner position of the position fixing plate (c 21), the water inlet cavity (c 23) is communicated with the built-in cavity (c 22), and the right side of the separating plate (c 24) is attached to the left side of the position fixing plate (c 21).
7. A novel composite pile enclosure device according to claim 6, characterized in that: the built-in cavity (c 22) comprises an elastic frame (d 1), a ring body (d 2) and a deformation sheet (d 3), the right side of the elastic frame (d 1) is attached to the right side of the inner wall of the ring body (d 2), and the deformation sheet (d 3) is connected with the inner wall of the ring body (d 2).
8. A novel composite pile enclosure device according to claim 6, characterized in that: the separation plate (c 24) comprises a rear frame (e 1), a front touch plate (e 2), a water permeable block (e 3) and an extrusion block (e 4), wherein the front touch plate (e 2) is fixed at the left position of the rear frame (e 1), the water permeable block (e 3) is embedded in the outer position of the inner wall of the front touch plate (e 2), and the extrusion block (e 4) is connected with the inner wall of the front touch plate (e 2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110465282.2A CN113266011A (en) | 2021-04-28 | 2021-04-28 | Novel composite pile enclosure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110465282.2A CN113266011A (en) | 2021-04-28 | 2021-04-28 | Novel composite pile enclosure device |
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| Publication Number | Publication Date |
|---|---|
| CN113266011A true CN113266011A (en) | 2021-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110465282.2A Pending CN113266011A (en) | 2021-04-28 | 2021-04-28 | Novel composite pile enclosure device |
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| CN (1) | CN113266011A (en) |
Citations (14)
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|---|---|---|---|---|
| JPH0296017A (en) * | 1988-09-29 | 1990-04-06 | Kubota Ltd | Pile-setting structure |
| CN2323017Y (en) * | 1998-01-26 | 1999-06-09 | 张盛昌 | Prefabricated bulkhead for hand excavated pile |
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| CN201420263Y (en) * | 2009-02-25 | 2010-03-10 | 叶长青 | Breast wall of prefabricated concrete pipe of manual hole digging pile |
| CN102518133A (en) * | 2011-12-15 | 2012-06-27 | 昆明理工大学 | Pile sinking method for prestress hollow pipe piles by aid of follow-up sleeve |
| CN102995622A (en) * | 2012-11-14 | 2013-03-27 | 河海大学 | Casing draining end bearing pile for treating liquefied foundation and construction method |
| CN107130633A (en) * | 2017-07-12 | 2017-09-05 | 蔡荪萍 | A kind of steel tube concrete clay model bag stake is combined soil-baffling structure construction technology |
| CN206683894U (en) * | 2017-04-10 | 2017-11-28 | 四川农业大学 | A kind of Portable mobile mud sample acquisition machine |
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| CN210275394U (en) * | 2019-06-26 | 2020-04-10 | 云南恩溪建设工程有限公司 | Sand land water and soil conservation device |
| CN111042120A (en) * | 2019-11-26 | 2020-04-21 | 浙江大学城市学院 | High-sensitivity anti-skid bored pile foundation for soft soil area and construction method of high-sensitivity anti-skid bored pile foundation |
| CN214656947U (en) * | 2021-03-11 | 2021-11-09 | 天津城建大学 | PETRFRP concrete pile with drainage function |
-
2021
- 2021-04-28 CN CN202110465282.2A patent/CN113266011A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0296017A (en) * | 1988-09-29 | 1990-04-06 | Kubota Ltd | Pile-setting structure |
| CN2323017Y (en) * | 1998-01-26 | 1999-06-09 | 张盛昌 | Prefabricated bulkhead for hand excavated pile |
| CN2673944Y (en) * | 2003-08-19 | 2005-01-26 | 邹宗煊 | Prestressed pipe pile with large end filled with sand |
| WO2008001352A2 (en) * | 2006-06-25 | 2008-01-03 | Basem Hazzan | Device and method for improved pile casting |
| US20180347223A1 (en) * | 2008-06-27 | 2018-12-06 | N. Eric Knudsen | Post sleeve assembly |
| CN101440619A (en) * | 2008-07-02 | 2009-05-27 | 中冶交通工程技术有限公司 | Seismic ecological bearing pile |
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| CN102995622A (en) * | 2012-11-14 | 2013-03-27 | 河海大学 | Casing draining end bearing pile for treating liquefied foundation and construction method |
| CN206683894U (en) * | 2017-04-10 | 2017-11-28 | 四川农业大学 | A kind of Portable mobile mud sample acquisition machine |
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| CN111042120A (en) * | 2019-11-26 | 2020-04-21 | 浙江大学城市学院 | High-sensitivity anti-skid bored pile foundation for soft soil area and construction method of high-sensitivity anti-skid bored pile foundation |
| CN214656947U (en) * | 2021-03-11 | 2021-11-09 | 天津城建大学 | PETRFRP concrete pile with drainage function |
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Application publication date: 20210817 |
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