CN111485547A - Prefabricated horizontal bearing type high-toughness concrete permeable pile and preparation method thereof - Google Patents
Prefabricated horizontal bearing type high-toughness concrete permeable pile and preparation method thereof Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
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- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/72—Pile shoes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
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Abstract
The invention relates to a prefabricated horizontal bearing type high-toughness concrete permeable pile and a preparation method thereof. The permeable pile comprises a pile body and a pile head, wherein the pile body is cylindrical, the pile body is of a double-layer structure along the radial direction, the outer layer of the pile body is of an annular structure, the annular structure is high-toughness concrete, the inner layer of the pile body is of a cylindrical structure, the cylindrical structure is broken stone, the pile head is a conical drill bit, and the bottom of the conical drill bit is connected with the bottom of the pile body. The pile is designed into a double-layer structure of the pile body. The outer layer is high-toughness concrete, and the inner layer is broken stone filler. The water permeability of the pile body is ensured, and the foundation consolidation rate is improved. The structure of the available permeable pile adopts a static pressure injection method to sink the permeable pile, so that the noise is reduced, and the efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of civil engineering, and particularly relates to a prefabricated horizontal bearing type high-toughness concrete permeable pile and a preparation method thereof.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
The existing permeable pile technology uses materials with large porosity and strong permeability, such as permeable concrete piles or gravel piles, which can play a role in bearing a pile body and can form a vertical drainage channel to accelerate the dissipation of hyperstatic pore water pressure in a soil body, thereby improving the consolidation rate of a foundation. However, the existing permeable pile technology still has the following defects: first, its ability to withstand horizontal loading is low. The common pervious concrete pile cannot bear larger horizontal load due to weaker bending resistance of the material, and the common gravel pile needs to provide bearing capacity by virtue of the constraint action provided by the surrounding soil body, so that the horizontal load bearing capacity of the pile body is lower, and when the bearing capacity of the soil body around the pile is insufficient, the pile body is easy to expand and damage under the action of vertical load; secondly, the construction process is particularly complex. Particularly, the common permeable concrete pile is easy to generate the segregation phenomenon of concrete in the construction process, and the slow consolidation speed is easy to generate the hole blocking phenomenon, so that the site construction speed of the permeable concrete pile is slow, and the construction quality is difficult to control, which limits the continuous popularization and application of the existing permeable pile technology in civil engineering.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a prefabricated horizontal bearing type high-toughness concrete permeable pile and a preparation method thereof.
In order to solve the technical problems, the technical scheme of the invention is as follows:
in a first aspect, the prefabricated horizontal bearing type high-toughness concrete permeable pile comprises a pile body and a pile head, wherein the pile body is cylindrical, the pile body is of a double-layer structure along the radial direction, the outer layer of the pile body is of an annular structure, the annular structure is high-toughness concrete, the inner layer of the pile body is of a cylindrical structure, the cylindrical structure is broken stones, the pile head is a conical drill bit, and the bottom of the conical drill bit is connected with the bottom of the pile body.
The structure of the permeable pile is mainly designed into a double-layer structure of the pile body. The outer layer is high-toughness concrete, and the inner layer is broken stone filler. The water permeability of the pile body is ensured, and the foundation consolidation rate is improved.
In a second aspect, the preparation method of the prefabricated horizontal bearing type high-toughness concrete permeable pile comprises the following specific steps:
pouring a conical drill bit, and embedding a steel bar in the drill bit;
maintaining the drill bit;
on the basis of the drill bit, pouring the outer layer of the pile body;
maintaining the outer layer of the pile body;
filling the hollow part of the pile body with broken stones.
The prefabricated water-permeable pile is obtained by the preparation method, and in actual use, the water-permeable pile can be sunk into the foundation by a pile sinking mode of a hammering pile.
In a third aspect, the construction method using the prefabricated horizontal bearing type high-toughness concrete permeable pile comprises the following specific steps:
pouring a conical drill bit by using high-strength concrete, embedding a steel bar in the drill bit, vibrating, maintaining and demoulding, and then forming;
on the basis of the drill bit, pouring the outer layer of the pile body, reserving water permeable holes according to the required water permeable rate, vibrating, maintaining and demolding to obtain the outer layer of the pile body;
wrapping the permeable geotextile on the outer layer of the pile body;
pressing a pressure lever of a static pile machine into the hollow part of the prefabricated hollow pile body by adopting a static pressure injection method, so that the pressure lever and the hollow pile body form a whole and are pressed into a foundation together;
after the pile body reaches the position, the pressure lever is pulled out, and broken stones are filled into the hollow part of the pile body.
And after the gravel is filled into the hollow part of the pile body, the construction of pressing the water permeable pile into the foundation is completed. In the construction method, the structural characteristics of the water permeable pile are combined, the hollow part is utilized, the prefabricated hollow pile body is pressed into the foundation through the compression rod of the static pressure pile machine, and then the broken stones are refilled. Compared with the hammering method, the method has low noise. In the sinking process, the weight of the pile body is increased under the pressing of the pressure rod, the sinking speed is higher, and the efficiency is higher.
In a fourth aspect, the permeable pile is applied to the field of buildings.
The invention has the beneficial effects that:
(1) the bending resistance and the bending capability are strong. The technical horizontal load bearing capacity of the existing permeable pile is generally low, and when horizontal load and bending moment act, cracking and even damage can occur. Therefore, the high-toughness concrete with strong bending resistance and bending capacity is used as the outer layer of the pile body to provide good bending resistance and damage resistance for the pile body so as to prevent the pile body from generating excessive deformation or cracking, and the pile end can be allowed to generate a certain degree of horizontal displacement, so that the application range is wider.
(2) The pile foundation construction method has small dependence on the constraint force of the soil body around the pile, and can adapt to more complex engineering conditions. Compared with the common gravel permeable pile, the outer layer of high-toughness concrete provides the function of a retaining wall and limits the lateral deformation of the inner layer of gravel, so that the pile body can bear load only by depending on the rigidity of the pile body, and the constraint force of the soil body around the pile is not required. Compare in traditional rubble permeable pile, application scope is wider.
(3) The drainage efficiency is higher, and the foundation consolidation speed is faster. Through prefabrication, compared with a water permeable pile technology adopting a cast-in-place method, when the water permeable pile is put into use, the pile body already has formed water permeability and strength, so that the drainage efficiency and the foundation consolidation rate are increased, and the construction period can be shortened to a certain extent.
(4) The static pressure is adopted to penetrate into the pile sinking, so that the noise is low and the efficiency is high. The static pressure penetration pile sinking method has small influence on residents nearby the site, and is convenient and rapid to construct, high in automation degree, strong in adaptability, economic and safe.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention.
FIG. 1 is a front view of a pile body of a prefabricated double-layer water-permeable gravel pile of the invention;
FIG. 2 is an elevation view of a pile body of the prefabricated double-layer water-permeable gravel pile of the invention;
FIG. 3 is a front view of a drill bit of the prefabricated double-layer water-permeable gravel pile of the invention;
FIG. 4 is an elevation view of a drill bit for a prefabricated double-layer water-permeable gravel pile according to the present invention;
FIG. 5 is a schematic diagram of the construction process of the prefabricated double-layer water-permeable gravel pile according to the present invention, and the construction process is as shown in FIGS. 5 a-5 b-5 c-5 d-5 e;
in the figure: 1-a drill bit; 2-high-toughness concrete; 3-water permeable holes; 4-reinforcing steel bars; 5-crushing stones; 6-a pressure bar.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1 or fig. 2, in a first aspect, a prefabricated horizontal bearing type high-toughness concrete permeable pile comprises a pile body and a pile head, wherein the pile body is cylindrical, the pile body is of a double-layer structure along a radial direction, an outer layer is of an annular structure, the annular structure is high-toughness concrete 2, an inner layer is of a cylindrical structure, the cylindrical structure is broken stone 5, the pile head is a conical drill bit 1, and the bottom of the conical drill bit 1 is connected with the bottom of the pile body.
The conical shape is a structure with a round bottom surface and a pointed top, and the conical bottom is one end of the round bottom surface.
According to the permeable pile, the inner layer is filled with the broken stones 5, so that the water permeability of the pile body is ensured, the vertical drainage channel can be played to accelerate the dissipation of the hyperstatic pore water pressure of the soil body, and the consolidation rate of the foundation is improved. The crushed stones are located in the middle part (the middle part of the pile body shown in fig. 2). The double-layer structure of the permeable pile has the advantages of two materials, brings out the best in each other, and the bending resistance of the outer-layer high-toughness concrete and the water permeability of the broken stones are improved. The problem of current permeable pile bearing capacity not enough (the bending resistance of concrete is poor, and the rubble can not provide the bearing capacity when not retraining) the segregation phenomenon of concrete (the effect that concrete and rubble complex is not good) is produced easily in the work progress is solved.
In some embodiments of the invention, the high-toughness concrete 2 comprises the following composition in parts by weight: 22-28 parts of cement, 30-35 parts of fly ash, 20-25 parts of quartz sand and 15-20 parts of water. The outer layer high-toughness concrete has excellent ductility and bending resistance, can provide good bending resistance and higher damage resistance for a pile body, limits the lateral deformation of the broken stones of the inner layer, reduces the dependence on the restraining effect of the soil body around the pile, and can allow the pile end to generate a certain degree of horizontal displacement.
Furthermore, the mixing amount of the short fibers is 2-3% of the total volume of the outer layer, and the outer layer is the outer layer of the pile body and comprises concrete and the short fibers. According to the invention, short fibers are added into concrete, so that the hardened composite material has remarkable strain hardening characteristics, a plurality of fine cracks can be correspondingly generated under tensile load, and the ultimate tensile strain stably reaches 3%. If the fiber content exceeds 3%, the concrete is not favorably stirred, the fiber distribution is uneven, the performance of the poured concrete is not ideal, and compared with the existing concrete, the short fiber content is improved, mainly aiming at improving the bending resistance.
Further, the cement is P.O.42.5 ordinary portland cement, the fly ash is first-grade fly ash, and the quartz sand is 40-80 meshes.
The cement with different strength grades can be selected according to the strength requirement of the actual engineering on the pile.
In some embodiments of the invention, the outer surface of the high-toughness concrete is coated with a water-permeable geotextile. The permeable geotextile can filter mud or soil particles, but allows water to pass through. The permeable geotextile is wrapped outside the pile body to prevent soil particles or slurry around the pile from entering the gravel filling layer to cause blockage and influence the drainage effect.
In some embodiments of the invention, a plurality of steel bars are arranged in the water-permeable pile, the lower part of the steel bars is positioned in the pile head, and the upper part of the steel bars is positioned in the pile body. The position that the reinforcing bar was buried underground is located the joining region on high tenacity concrete layer to guarantee that the high tenacity layer of pouring can interlock the reinforcing bar and accomplish the joint with the drill bit. As shown in fig. 3.
Further, the reinforcing steel bars are circularly arranged in the water permeable pile, and the distance between the reinforcing steel bars and the center of the circular cone-shaped bottom surface is 20-30 cm; preferably 25 cm. The reason for the arrangement is that the steel bars are located at the corresponding positions of the outer layer of the pile body. As shown in fig. 4.
In some embodiments of the present invention, the side wall of the pile body is provided with a plurality of water permeable holes 3, and the plurality of water permeable holes 3 are arranged in a spiral shape. The water permeable holes 3 are arranged to ensure the water permeability of the pile body. The aperture size of the permeable holes can be adjusted according to the actual engineering requirements.
In some embodiments of the invention, the difference between the outer diameter and the inner diameter of the shaft is 32-37cm, the outer diameter of the shaft is 65-75cm, and the outer diameter of the inner layer of the shaft is 32-37 cm.
In some embodiments of the invention, the diameter of the bottom of the pile head is 5-10mm larger than the outer diameter of the pile body. So as to reduce the friction force between the pile body and the soil in the pile sinking process, increase the whole weight of the pile body and provide convenience for adopting static pressure to penetrate into the pile.
In a second aspect, the preparation method of the prefabricated horizontal bearing type high-toughness concrete permeable pile comprises the following specific steps:
pouring a conical drill bit, and embedding a steel bar in the drill bit;
maintaining the drill bit;
on the basis of the drill bit, pouring the outer layer of the pile body;
filling the hollow part of the pile body with broken stones.
The prefabricated water-permeable pile is obtained by the preparation method, and in actual use, the water-permeable pile can be sunk into the foundation by a pile sinking mode of a hammering pile.
In a third aspect, the construction method using the prefabricated horizontal bearing type high-toughness concrete permeable pile comprises the following specific steps:
pouring a conical drill bit, embedding a steel bar in the drill bit, vibrating, maintaining and demolding to form the steel bar;
on the basis of the drill bit, pouring the outer layer of the pile body, reserving water permeable holes according to the required water permeable rate, vibrating, maintaining and demolding to obtain the outer layer of the pile body; wrapping the permeable geotextile on the outer layer of the pile body;
filling a pressure lever of a static pile machine into the hollow part of the prefabricated hollow pile body by adopting a static pressure injection method, so that the pressure lever and the hollow pile body form a whole and are pressed into a foundation together;
after the pile body reaches the position, the pressure lever is pulled out, and broken stones are filled into the hollow part of the pile body.
As shown in fig. 5, after the crushed stone 5 is filled into the hollow portion of the pile body, the construction of pressing the water permeable pile into the foundation is completed. In the construction method, the structural characteristics of the water permeable pile are combined, the pile body is pressed into the foundation through the compression rod 6 by utilizing the hollow part, and then the gravel 5 is filled in the pile body. Compared with the hammering method, the method has low noise. In the sinking process, the weight of the pile body is increased under the pressing of the pressure lever 6, the sinking speed is higher, and the efficiency is higher.
In some embodiments of the invention, the time for maintaining the drill bit after the drill bit is poured is 28 d. And pouring the pile body after maintenance, so that the strength and the quality of the whole pile body are ensured.
In a fourth aspect, the permeable pile is applied to the field of buildings.
The invention will be further illustrated by the following examples
Example 1
Step (1) prefabricating a hollow pile body. Firstly, pouring a conical high-strength concrete drill bit, wherein the diameter of the bottom surface of the drill bit 1 is 71cm, and the height of the drill bit is 50 cm. And a circle of steel bars 4 are embedded in the bottom surface of the conical bottom surface, and the distance between each steel bar 4 and the center of the conical bottom surface is 25 cm. And after the 28d curing is finished, continuously pouring the high-toughness concrete 2, wherein the high-toughness concrete comprises the following components in parts by weight: 25 parts of cement, 32 parts of fly ash, 22 parts of quartz sand and 18 parts of additive water. The high-toughness concrete 2 was doped with short fibers in an amount of 2.5% by volume. The high-toughness concrete 2 is meshed with the reinforcing steel bars, the high-toughness concrete 2 is hollow, the inner diameter of the high-toughness concrete is 35cm, the outer diameter of the high-toughness concrete is 70cm, the height of the high-toughness concrete is 7.0m, and the water permeable holes 3 are spirally arranged along the pile body according to the water permeable rate required by design. And putting into use after the 28d curing of the high-toughness concrete 2 is finished.
And (2) according to the construction drawing design file and the surrounding environment data, point positions of the piles are measured and placed on the construction site, and the point positions are marked obviously.
And (3) installing and debugging the static pressure pile machine, ensuring that the center of a pressure head of the pile machine is aligned with the position of a pile point, and confirming to be in place after normal test operation inspection.
And (4) hoisting the prefabricated hollow pile body, aligning the prefabricated pile to a target point position, filling the hollow part with a pressure rod 6 to integrate the pressure rod 6 and the pile body, and vertically pressing the pile body into the soil through the pressing action of the pressure head on the pressure rod 6. As shown in fig. 5a, 5 b.
And (5) after the drill bit is inserted into the target point position, controlling the deviation between the longitudinal direction and the transverse direction of the precast pile to be not more than 0.5%. At the moment, the pressing-in speed of the pile machine is controlled to be not more than 2m/min, and the precast pile is slowly and vertically pressed into the soil. As shown in fig. 5 c.
And (6) when the pile body reaches the designated elevation, pulling out the pressure lever 6, and filling the broken stone 5 into the hollow position of the pile body to complete the pouring of the horizontal bearing type high-toughness concrete permeable pile. As shown in fig. 5d, 5 e.
And (7) moving the pile driver to the next target point position, and repeating the steps (4) to (6) until all the prefabricated piles are pressed into the soil. And then carrying out construction related to the bearing platform.
And (8) cleaning a construction site.
After the high-toughness concrete of the outer layer of the pile body is poured, the obtained high-toughness concrete is subjected to a tensile test through a uniaxial tensile test, and the obtained ultimate tensile deformation is 3%.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a precast horizontal bearing formula high tenacity concrete pile that permeates water which characterized in that: the method comprises the following specific steps: the high-toughness concrete pile comprises a pile body and a pile head, wherein the pile body is cylindrical, the pile body is of a double-layer structure along the radial direction, the outer layer is of an annular structure, the annular structure is high-toughness concrete, the inner layer is of a cylindrical structure, the cylindrical structure is broken stones, the pile head is a conical drill bit, and the bottom of the conical drill bit is connected with the bottom of the pile body.
2. The prefabricated horizontal bearing type high-toughness concrete water-permeable pile according to claim 1, wherein: the high-toughness concrete comprises the following components in parts by weight: 22-28 parts of cement, 30-35 parts of fly ash, 20-25 parts of quartz sand and 15-20 parts of water;
preferably, the short fibers account for 2-3% of the total volume of the outer layer, and the outer layer is the outer layer of the pile body and comprises concrete and short fibers;
preferably, the cement is P.O.42.5 ordinary portland cement, the fly ash is first-grade fly ash, and the quartz sand is 40-80 meshes.
3. The prefabricated horizontal bearing type high-toughness concrete water-permeable pile according to claim 1, wherein: the outer surface of the high-toughness concrete is coated with the permeable geotextile.
4. The prefabricated horizontal bearing type high-toughness concrete water-permeable pile according to claim 1, wherein: set up a plurality of reinforcing bars in the stake that permeates water, the lower part of reinforcing bar is located the pile head, and the upper portion of reinforcing bar is located the pile body.
5. The prefabricated horizontal bearing type high-toughness concrete water-permeable pile according to claim 4, wherein: the reinforcing steel bars are circularly arranged in the water permeable pile, and the distance between the reinforcing steel bars and the center of the circular cone-shaped bottom surface is 20-30 cm; preferably 25 cm.
6. The method for preparing the prefabricated horizontal bearing type high-toughness concrete permeable pile according to claim 1, wherein the method comprises the following steps: the lateral wall of pile body sets up a plurality of holes of permeating water, and a plurality of holes of permeating water are the heliciform and arrange.
7. The method for preparing the prefabricated horizontal bearing type high-toughness concrete permeable pile according to claim 1, wherein the method comprises the following steps: the difference between the outer diameter and the inner diameter of the pile body is 32-37cm, the outer diameter of the pile body is 65-75cm, and the outer diameter of the inner layer of the pile body is 32-37 cm;
or the diameter of the bottom of the pile head is 5-10mm larger than the outer diameter of the pile body.
8. The method for preparing the prefabricated horizontal bearing type high-toughness concrete water-permeable pile according to any one of claims 1 to 7, wherein the method comprises the following steps: the method comprises the following specific steps:
pouring a conical drill bit, and embedding a steel bar in the drill bit;
maintaining the drill bit;
on the basis of the drill bit, pouring the outer layer of the pile body;
filling the hollow part of the pile body with broken stones.
9. The construction method using the prefabricated horizontal load-bearing high-toughness concrete water-permeable pile according to any one of claims 1 to 7, wherein: the method comprises the following specific steps:
pouring a conical drill bit, embedding a steel bar in the drill bit, vibrating, maintaining and demolding to form the steel bar;
on the basis of the drill bit, pouring the outer layer of the pile body, reserving water permeable holes according to the required water permeable rate, vibrating, maintaining and demolding to obtain the outer layer of the pile body;
wrapping the permeable geotextile on the outer layer of the pile body;
filling a pressure lever of a static pile machine into the hollow part of the prefabricated hollow pile body by adopting a static pressure injection method, so that the pressure lever and the hollow pile body form a whole and are pressed into a foundation together;
after the pile body reaches the position, the pressure lever is pulled out, and broken stones are filled into the hollow part of the pile body.
10. Use of the prefabricated horizontal load-bearing high-toughness concrete water-permeable pile according to any one of claims 1 to 7 in the field of buildings.
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Cited By (3)
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| CN112227344A (en) * | 2020-10-11 | 2021-01-15 | 福建新华夏建工有限公司 | Soft foundation reinforcement construction method with good reinforcement effect |
| CN112523206A (en) * | 2020-11-17 | 2021-03-19 | 胡鹏 | Prefabricated horizontal bearing type high-toughness concrete permeable pile and preparation method thereof |
| CN114718048A (en) * | 2022-02-28 | 2022-07-08 | 中铁西北科学研究院有限公司 | High-intensity region sand-resistant soil liquefaction permeable pile and soil taking and pile planting construction method |
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| CN112227344A (en) * | 2020-10-11 | 2021-01-15 | 福建新华夏建工有限公司 | Soft foundation reinforcement construction method with good reinforcement effect |
| CN112523206A (en) * | 2020-11-17 | 2021-03-19 | 胡鹏 | Prefabricated horizontal bearing type high-toughness concrete permeable pile and preparation method thereof |
| CN114718048A (en) * | 2022-02-28 | 2022-07-08 | 中铁西北科学研究院有限公司 | High-intensity region sand-resistant soil liquefaction permeable pile and soil taking and pile planting construction method |
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Application publication date: 20200804 |