CN220550589U - Novel pile foundation joist retaining wall - Google Patents
Novel pile foundation joist retaining wall Download PDFInfo
- Publication number
- CN220550589U CN220550589U CN202321011258.2U CN202321011258U CN220550589U CN 220550589 U CN220550589 U CN 220550589U CN 202321011258 U CN202321011258 U CN 202321011258U CN 220550589 U CN220550589 U CN 220550589U
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- retaining wall
- bearing platform
- pile foundation
- foundation joist
- novel pile
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- 239000002689 soil Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000002787 reinforcement Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 2
- 238000005266 casting Methods 0.000 claims 1
- 239000004746 geotextile Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a novel pile foundation joist retaining wall, which is realized in such a way that the novel pile foundation joist retaining wall comprises supporting piles, is provided with double rows and is arranged on a slope section; the bearing platform is connected to the tops of the supporting piles to connect the double rows of supporting piles into a whole, and the top surface of the bearing platform is provided with tenons; the balance weight type retaining wall is arranged on the upper part of the bearing platform and is provided with a front-back penetrating water leakage hole; the front section of the bearing platform is provided with a pre-stress anchor cable anchored into a soil layer of the slope section; plastic drainage plates corresponding to the drainage holes are sold in soil layers arranged behind the counter weight retaining walls. The utility model has the advantages that: the device has the characteristics of clear force transmission path, firm structure, simple and convenient construction and economical manufacturing cost, and is suitable for slope support on a slope.
Description
Technical Field
The utility model relates to the technical field of side slope supporting structures, in particular to a novel pile foundation joist retaining wall.
Background
In engineering construction, due to the limitation of site conditions, the need to fill a slope on the slope often occurs. For the high filling side slope on the slope, the construction difficulty is high, and the problems of foundation bearing capacity, retaining wall stability, side slope overall stability, retaining wall horizontal displacement control and the like are required to be solved.
In the prior art, the side slope support is generally in the form of a counter weight type retaining wall, a buttress type retaining wall and the like. In order to solve the problem of high retaining wall on a slope, a pile foundation joist structure is commonly used at present as a retaining wall foundation, the load of the retaining wall is transferred to a deep stable rock-soil layer through a pile foundation, and the pile foundation bears the vertical load and the horizontal load of the retaining wall. However, due to complex geological conditions of the slope field, the passive resistance provided by the embedded end cannot be accurately analyzed, an analysis mode of the anti-slide pile is generally adopted, the pile length is longer, the pile diameter is larger, and the cost of slope support is high.
Disclosure of Invention
The utility model aims to provide a novel pile foundation joist retaining wall which has the characteristics of clear force transmission path, firm structure, simple and convenient construction and economical construction cost and is suitable for slope support on a slope.
The utility model aims at realizing the following aims, and the novel pile foundation joist retaining wall comprises
The support piles 4 and 7 are provided with double rows and are distributed on the slope section;
the bearing platform 3 is connected to the tops of the supporting piles 4 and 7 to connect the supporting piles 4 and 7 in double rows into a whole, and the top surface of the bearing platform is provided with tenons 6; and
the balance weight type retaining wall 2 is arranged on the upper part of the bearing platform 3, and the balance weight type retaining wall 2 is provided with a front-back penetrating drain hole 5;
wherein, the front section of the bearing platform 3 is provided with a pre-stress anchor cable 9 anchored into the soil layer of the slope section; a plastic drainage plate 8 corresponding to the water drain hole 5 is buried in a soil layer arranged behind the counter weight type retaining wall 2.
The utility model has the advantages that:
1. compared with the traditional technical project, the utility model has the advantages that the prestress anchor cable is arranged at the front end of the bearing platform, the force transmission of the whole structure is clear, the stress mode is clear, and the technical advantage is obvious.
2. According to the utility model, the tenons are arranged on the bearing platform top, so that the anti-slip capability of the retaining wall base is effectively enhanced, and the stability of the retaining wall is improved.
3. The plastic drainage plate is arranged behind the wall by filling soil, the process is simple, the water is effectively drained, and the effect of the pressure of the soil on the back of the wall is reduced.
Drawings
FIG. 1 is a schematic illustration of a novel pile foundation joist retaining wall;
FIG. 2 is a schematic plan view of pile foundation, cap and pre-stressed anchor;
description of the reference numerals
The construction method comprises the following steps of 1-slope sections, 2-balance weight type retaining walls, 3-bearing platforms, 4, 7-supporting piles, 5-water discharge holes, 6-bearing platform tenons, 8-plastic drainage plates and 9-prestressed anchor cables.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "front", "rear", "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
The utility model aims at realizing the following aims, and the novel pile foundation joist retaining wall comprises
The support piles 4 and 7 are provided with double rows and are distributed on the slope section;
the bearing platform 3 is connected to the tops of the supporting piles 4 and 7 to connect the supporting piles 4 and 7 in double rows into a whole, and the top surface of the bearing platform is provided with tenons 6; and
the balance weight type retaining wall 2 is arranged on the upper part of the bearing platform 3, and the balance weight type retaining wall 2 is provided with a front-back penetrating drain hole 5;
wherein, the front section of the bearing platform 3 is provided with a pre-stress anchor cable 9 anchored into the soil layer of the slope section; a plastic drainage plate 8 corresponding to the water drain hole 5 is buried in a soil layer arranged behind the counter weight type retaining wall 2.
The supporting piles 4 and 7 are divided into a front row pile 4 and a front row pile 7, and the bearing platforms are arranged at the tops 4 and 7 of pile foundations and support the balanced retaining wall 2. The double-row supporting piles are round piles, and the diameter of each pile is 0.8-1.2 m. The top of the support piles 4, 7 is provided with a main rib extending out of the support piles 4, 7, and the main rib is anchored into the bearing platform.
The length of the main reinforcement anchored in the bearing platform is not less than 35D, and D is the diameter of the main reinforcement.
The top surface of the bearing platform 3 is provided with the tenons 6, so that the firmness of connection between the bearing platform 3 and the balance weight type retaining wall 2 is ensured when the balance weight type retaining wall 2 is poured on the top surface of the bearing platform 3 in the later period. The prestressed anchor cable 9 is anchored into a stable soil layer, and the free end is locked with the front end of the bearing platform 3.
During concrete construction, firstly, double rows of support piles are constructed, and manual hollowing of the cast-in-place piles can be adopted; then constructing a prestressed anchor cable; constructing a bearing platform, wherein the main ribs extend into the bearing platform; then constructing a balance weight type retaining wall; then, the anchor cable is locked; and finally, backfilling earthwork. The construction process of the retaining wall is mature, the steps are clear, the force transmission of the retaining wall structure is clear, the stress is reasonable, and the retaining wall is safe and reliable.
The bearing platform 3 is arranged on the ground of a slope section and is formed by pouring reinforced concrete, and the strength grade of the reinforced concrete is not less than C30; the height of the bearing platform 3 is 0.6-1.0 m, and the two horizontal ends of the bearing platform exceed the balance weight type retaining wall substrate by not less than 300mm. The height of the top tenons is not less than 300mm.
The prestressed anchor cable 9 adopts phi 15.2 steel strands, the anchoring section is positioned in a stable rock-soil layer, the free section is locked at the front end of the bearing platform 3, and a pvc pipeline is buried in the bearing platform 3 for the anchor cable to pass through.
The weight balancing type retaining wall 2 is made of C25 rubble concrete, and is provided with a water drain hole 5 reserved by burying a PVC pipe.
The plastic drainage plate 8 is wrapped with a layer of geotechnical cloth, synchronous construction is performed when the earthwork of the wall back is backfilled, the inclined gradient is not less than 5%, one end of the plastic drainage plate is tightly attached to the water discharge hole 5, and soil is prevented from sliding out of the water discharge hole.
The construction method of the utility model comprises the following specific steps:
s1: carrying out lofting, pore-forming and pile forming and detection on the support piles 4 and 7;
s2: forming holes of the prestressed anchor cable 9, and laying steel strands and grouting;
s3: pile tops of the support piles 4 and 7 are roughened, reinforcing steel bars are bound, a supporting platform 3 with tenons is poured by a supporting mould, and a PVC sleeve with the thickness of 100mm is adopted to protect anchor cables;
s4: pouring a balance weight type retaining wall 2 in a layered and sectional manner, and embedding PVC water drainage holes 5 in a wall body;
s5: tensioning and locking the prestressed anchor cable 9;
s6: and backfilling earthwork behind the wall, and synchronously burying a plastic drain plate 9, wherein one end of the plastic drain plate is tightly attached to the wall body water drain hole 5.
According to the embodiment, the pile type, the pile diameter, the distance, the row spacing and the reinforcement of the double-row supporting piles can be selected according to working conditions and actual requirements, the height of the bearing platform and the widths of the reinforcement and the tenons are determined according to the actual requirements, and the length, the distance and the number of steel strands of the prestressed anchor cable are determined according to the actual requirements.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present utility model.
Claims (10)
1. Novel pile foundation joist barricade, its characterized in that: it comprises
The support piles (4, 7) are provided with double rows and are distributed on the slope section;
the bearing platform (3) is connected to the tops of the supporting piles (4, 7) to connect the supporting piles (4, 7) in double rows into a whole, and the top surface of the bearing platform is provided with tenons (6); and
the balance weight type retaining wall (2) is arranged on the upper part of the bearing platform (3), and the balance weight type retaining wall (2) is provided with a front-back penetrating drain hole (5);
wherein, the front section of the bearing platform (3) is provided with a pre-stress anchor cable (9) anchored into the soil layer of the slope section; a plastic drainage plate (8) corresponding to the water drainage hole (5) is buried in a soil layer arranged behind the counter weight type retaining wall (2).
2. The novel pile foundation joist retaining wall according to claim 1, wherein said double rows of supporting piles are circular piles having a pile diameter of 0.8-1.2 m.
3. The novel pile foundation joist retaining wall according to claim 1, wherein the top of the supporting piles (4, 7) is provided with a main rib extending out of the supporting piles (4, 7), and said main rib is anchored into the bearing platform.
4. The novel pile foundation joist retaining wall according to claim 3, wherein the length of the main reinforcement anchored in the bearing platform is not less than 35d, d being the diameter of the main reinforcement.
5. The novel pile foundation joist retaining wall according to claim 1, wherein said bearing platform (3) is placed on the ground of a sloping field and is formed by casting reinforced concrete, and the concrete strength grade is not less than C30; the height of the bearing platform is 0.6-1.0 m, and the horizontal two ends of the bearing platform exceed the base of the balance weight type retaining wall by not less than 300mm.
6. The novel pile foundation joist retaining wall according to claim 1, wherein the height of the tenons (6) of the bearing platform (3) is not less than 300mm.
7. The novel pile foundation joist retaining wall according to claim 1, wherein the wall material of said counter-balanced retaining wall (2) is C25 rubble concrete, the rubble mixing amount is not more than 30% of the wall volume.
8. The novel pile foundation joist retaining wall according to claim 1, wherein said prestressed anchor cable (9) anchoring section is a stabilized soil layer, the free end is locked to the bearing platform (3), and the anchor cable material is phi s 15.2 steel strands.
9. The novel pile foundation joist retaining wall according to claim 1, wherein said plastic drainage plate (8) is wrapped with a layer of geotextile, and the front end of said plastic drainage plate (8) is tightly attached to the wall body drain hole (5).
10. The novel pile foundation joist retaining wall according to claim 1, wherein said double rows of support piles (4, 7) are equally spaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321011258.2U CN220550589U (en) | 2023-04-28 | 2023-04-28 | Novel pile foundation joist retaining wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321011258.2U CN220550589U (en) | 2023-04-28 | 2023-04-28 | Novel pile foundation joist retaining wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220550589U true CN220550589U (en) | 2024-03-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321011258.2U Active CN220550589U (en) | 2023-04-28 | 2023-04-28 | Novel pile foundation joist retaining wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220550589U (en) |
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2023
- 2023-04-28 CN CN202321011258.2U patent/CN220550589U/en active Active
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