Reinforced soil slope structure
By setting up a pile board wall in the middle and lower parts of the slope and the laying of the gluten soil slope structure of the stone cage on the outside of the pile board wall, the traditional slope reinforcement method occupies the problem of high land and cost. The improvement of stability and anti -brushing performance is also in line with the concept of green engineering.
Patent Information
- Application Number
- CN202420077149.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-01-12
AI Technical Summary
The traditional slope reinforcement method has problems such as large land resource occupation, high engineering costs, poor anti-shrink performance and not in line with the concept of green engineering.
Adopt the slope of the gluten soil, including the slope of the tendon and soil, the wall of the pile and the stone cage. Chengtai pile board wall is set on the middle and lower parts of the slope to restrain the slope deformation.
Effectively restrain slope deformation, save land resources, reduce engineering costs, improve the resistance of the brushing, and meet the concept of green engineering.
Smart Images
Figure CN222412831U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the protection of a roadbed along a river, in particular to a reinforced soil slope structure. Background Art
[0002] Traditional slope reinforcement mostly adopts structures such as slope reduction, prestressed anchor cable frame beam, and anti-slide piles. If the slope foot is below the water level, it is mostly necessary to adopt slope protection structures such as mortar-laid rubble or anti-scour foot wall. The above structures have the following defects: ① The slope reduction method for the entire section will occupy a large amount of land resources; ② For the case of a large slope height, the processing depth of the anchor cable is large, and the economic performance of the project is difficult to guarantee; ③ The reinforced soil slope is a flexible structure, which will produce a certain amount of vertical settlement and horizontal displacement under the self-weight of the slope, and is not suitable for working conditions with strict deformation control; ④ The mortar-laid rubble slope protection is easy to fall off under the long-term scouring of the water flow, and the later maintenance cost is high; ⑤ In areas with high century-old flood levels, anti-scour foot walls are used for protection. The amount of anti-scour foot walls required to be built is large, and a large amount of steel bars, concrete and other raw materials are used, which will not only cause a large amount of carbon emissions, but also break the consistency between the project and the surrounding environment, which is not in line with the concept of building green projects in my country. Summary of the invention
[0003] In order to solve the above problems, the utility model provides a reinforced soil slope structure.
[0004] The utility model adopts the following technical scheme: a reinforced soil slope structure, comprising:
[0005] Reinforced soil slopes;
[0006] A cap pile sheet wall, wherein the cap pile sheet wall is arranged at the middle and lower part of the reinforced soil slope and blocks the outer side of the reinforced soil slope, the middle and lower part of the cap pile sheet wall extends below the ground, and the length below the ground is greater than the length above the ground;
[0007] Gabions are arranged outside the pile-slab wall of the cap, and multiple layers of gabions are laid.
[0008] In some embodiments, the reinforced soil slope includes:
[0009] Slope fill;
[0010] Multiple layers of long reinforcement, the long reinforcement being laid through the layers in the slope filler;
[0011] Multiple layers of short bars, the short bars are laid 3 m~5 m in the slope filler.
[0012] In some embodiments, the vertical spacing of the long bars is less than or equal to 2 m, and the vertical spacing of the short bars is less than or equal to 0.6 m.
[0013] In some embodiments, both the long bars and the short bars are made of polyethylene uniaxially stretched geogrid, and the nominal longitudinal tensile strength of the long bars and the short bars is not less than 160 kN / m, the tensile strength at 2% longitudinal elongation is not less than 47 kN / m, the tensile strength at 5% longitudinal elongation is not less than 93 kN / m, and the maximum longitudinal nominal elongation is ≤11.5%.
[0014] In some embodiments, the slope filler is constructed using Group A and B fillers from sandy soil, gravel soil or crushed stone soil. The maximum particle size of the slope filler shall not be greater than 1 / 4 of the compacted thickness of a single layer of filler, and the maximum particle size shall not be greater than 10 cm.
[0015] In some embodiments, the cross-sectional dimensions of the cap pile sheet wall are not less than 1.5 m×1.5 m, the overall length is not less than 20 m, the buried length is not less than 12 m, and the pile spacing is not greater than 4.5 m.
[0016] In some embodiments, the gabion includes a gabion mesh and a gabion filler, and the gabion filler is filled in the gabion mesh.
[0017] In some embodiments, the tensile strength of the gabion mesh is not less than 42 kN / m, and the nominal flange strength is not less than 35 kN / m. The gabion filler is pebbles, stone slabs or blocks, with a strength grade of not less than MU30, and the stone particle size is 100 mm~300 mm, and the stone with a particle size less than 100 mm does not exceed 15%.
[0018] Compared with the prior art, the utility model has the following beneficial effects:
[0019] 1. The pile-sheet wall of the cap is set in the middle and lower part of the slope. At the same time, the pile-sheet wall of the cap can effectively restrain the deformation of the reinforced soil slope, making the structure suitable for working conditions with strict deformation control.
[0020] 2. The pile-sheet wall reduces the area occupied by the reinforced soil slope and saves land resources. At the same time, because its reinforcement position is relatively close to the foot of the slope, the construction cost is relatively low, which improves the economic performance of the project.
[0021] 3. Gabions are set on the outside of the pile-slab wall, which not only greatly improves the anti-scouring performance of the structure, but also, compared with mortar-laid stone, anti-scouring foot wall and other structures, the gabion structure is more in line with the concept of building green projects.
[0022] 4. The internal reinforcement of the reinforced soil slope adopts a long-short reinforcement arrangement structure. The structural design is in line with the research on the mechanical behavior characteristics of the reinforced soil slope related structures. It can save construction materials while reducing engineering workload, which will improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural schematic diagram of the utility model;
[0024] In the figure, 1-reinforced earth slope, 1-1-long reinforcement, 1-2-short reinforcement, 1-3-slope filling, 2-pile-board wall, 3-gabion, 3-1-gabion mesh, 3-2-gabion filling. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0026] like Figure 1 As shown, a reinforced earth slope structure includes: a reinforced earth slope 1, long reinforcement 1-1, short reinforcement 1-2, slope filling material 1-3, a cap pile board wall 2 and a gabion 3.
[0027] It is mainly composed of three parts: reinforced soil slope 1, pile-sheet wall 2 and gabion 3. The reinforced soil slope 1 is located at the rightmost side of the project, the pile-sheet wall 2 is located in the middle and lower part of the reinforced soil slope 1, and the gabion 3 is on the left side of the pile-sheet wall. The pile-sheet wall 2 is set at the middle and lower part of the reinforced soil slope 1 and blocks the outside of the reinforced soil slope 1. The middle and lower part of the pile-sheet wall 2 extends below the ground, and the length below the ground is greater than the length above the ground. The gabion 3 is set outside the pile-sheet wall 2, and the gabion 3 is laid in multiple layers.
[0028] The reinforced soil slope 1 is composed of long reinforcement 1-1, short reinforcement 1-2 and slope filling material 1-3.
[0029] The reinforced soil slope 1 is formed by filling the slope filler 1-3, the long reinforcement 1-1 is laid in the reinforced soil slope 1, the short reinforcement 1-2 is laid in the reinforced soil slope 1 with a length of 3 m to 5 m, the vertical spacing of the long reinforcement 1-1 is not more than 2 m, and the vertical spacing of the short reinforcement 1-2 is not more than 0.6 m.
[0030] Long reinforcement 1-1 and short reinforcement 1-2 are made of high-density polyethylene (HDPE) uniaxial tensile geogrid with good anti-aging performance and small creep deformation, and the nominal longitudinal tensile strength of long reinforcement 1-1 and short reinforcement 1-2 is not less than 160 kN / m, the tensile strength at 2% longitudinal elongation is not less than 47 kN / m, the tensile strength at 5% longitudinal elongation is not less than 93 kN / m, and the maximum longitudinal nominal elongation is ≤11.5%
[0031] Slope fillers 1-3 should be filled with well-graded sandy soil, gravel soil or crushed stone soil, and group A and B fillers should not be used. The maximum particle size of slope fillers 1-3 shall not be greater than 1 / 4 of the compacted thickness of a single layer of fillers, and the maximum particle size shall not be greater than 10 cm.
[0032] The cross-sectional dimensions of the pile-sheet wall 2 shall not be less than 1.5 m × 1.5 m, the overall length shall not be less than 20 m, the buried length shall not be less than 12 m, and the pile spacing shall not be greater than 4.5 m.
[0033] Gabion 3 consists of gabion mesh 3-1 and gabion filler 3-2. The tensile strength of gabion mesh 3-1 is not less than 42 kN / m, and the nominal flanging strength is not less than 35 kN / m. Gabion filler 3-2 is made of pebbles, slabs or blocks that are hard, not prone to disintegration and hydrolysis, and resistant to weathering, with a strength grade of not less than MU30. The stone particle size should be 100 mm~300 mm, and the stone with a particle size less than 100 mm should not exceed 15%.
[0034] The utility model reinforced soil slope composite structure is specifically used in the process of plateau riverside protection. It solves the current reinforced soil slope occupation area, and at the same time, because its reinforcement position is relatively close to the slope foot, the construction cost is relatively low, which improves the economic performance of the project. Not only does it greatly improve the anti-scouring performance of the structure, but also compared with mortar-laid stone, anti-scouring foot wall and other structures, the gabion structure is more in line with the concept of building green projects in my country. It has extremely wide promotion value.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A reinforced soil slope structure, characterized in that: include: Reinforced soil slope (1); A cap pile sheet wall (2), wherein the cap pile sheet wall (2) is arranged at a middle and lower position of the reinforced soil slope (1) and blocks the outside of the reinforced soil slope (1), the middle and lower portion of the cap pile sheet wall (2) extends below the ground, and the length below the ground is greater than the length above the ground; Gabions (3), wherein the gabions (3) are arranged outside the cap pile board wall (2), and the gabions (3) are laid in multiple layers.
2. The reinforced soil slope structure according to claim 1, characterized in that: The reinforced soil slope (1) comprises: Slope fill (1-3); Multiple layers of long reinforcement (1-1), wherein the long reinforcement (1-1) is laid in layers within the slope filler (1-3); Multiple layers of short reinforcement (1-2), wherein the short reinforcement (1-2) is laid 3 m to 5 m in the slope filler (1-3).
3. The reinforced soil slope structure according to claim 2, characterized in that: The vertical spacing of the long reinforcement (1-1) is less than or equal to 2 m, and the vertical spacing of the short reinforcement (1-2) is less than or equal to 0.6 m.
4. The reinforced soil slope structure according to claim 2, characterized in that: The long reinforcement (1-1) and the short reinforcement (1-2) are both made of polyethylene uniaxially stretched geogrid, and the nominal longitudinal tensile strength of the long reinforcement (1-1) and the short reinforcement (1-2) is not less than 160 kN / m, the tensile strength at a longitudinal elongation of 2% is not less than 47 kN / m, the tensile strength at a longitudinal elongation of 5% is not less than 93 kN / m, and the maximum longitudinal nominal elongation is ≤11.5%.
5. The reinforced soil slope structure according to claim 2, characterized in that: The slope filler (1-3) is constructed using A and B group fillers from sandy soil, gravel soil or crushed stone soil. The maximum particle size of the slope filler (1-3) shall not be greater than 1 / 4 of the compacted thickness of a single layer of filler, and the maximum particle size shall not be greater than 10 cm.
6. The reinforced soil slope structure according to claim 1, characterized in that: The cross-sectional dimensions of the cap pile-sheet wall (2) are not less than 1.5 m×1.5 m, the overall length is not less than 20 m, the buried length is not less than 12 m, and the pile spacing is not greater than 4.5 m.
7. The reinforced soil slope structure according to claim 1, characterized in that: The gabion (3) comprises a gabion mesh (3-1) and a gabion filler (3-2), wherein the gabion filler (3-2) is filled in the gabion mesh (3-1).
8. The reinforced soil slope structure according to claim 7, characterized in that: The tensile strength of the gabion mesh (3-1) is not less than 42 kN / m, and the nominal flange strength is not less than 35 kN / m. The gabion filler (3-2) is made of pebbles, slabs or blocks, with a strength grade of not less than MU30, and a stone particle size of 100 mm to 300 mm, and the stone with a particle size less than 100 mm does not exceed 15%.