An assembled shock-absorbing and reinforced retaining wall
Through the retaining wall structure composed of prefabricated high-dampening shock-absorbing walls and extended-diameter pull-up anchors, the problem of insufficient seismic and tension-resistant performance is solved, rapid construction is achieved and resource waste is reduced, and the stability and seismic resistance of the retaining wall are improved.
Patent Information
- Application Number
- CN202211500853.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-11-28
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2042-11-28
AI Technical Summary
The existing retaining walls have poor seismic and tensile resistance, and have a long construction period, serious waste of resources, and an increase in water pressure leads to excessive loads, which can easily cause instability.
The prefabricated structure consisting of high-damping shock absorbing walls, expanded diameter-resistant pull-up anchors, drainage pipes and prestressed anchor cables is adopted, combining high-damping concrete and waste rubber shock absorbing plates to form a stable support structure, and the seismic resistance is optimized through inverted Y-shaped design and drainage system.
It improves the seismic performance and pull-resistant ability of the retaining wall, shortens the construction cycle, reduces environmental impact, reduces water pressure load, and avoids overall damage and resource waste.
Smart Images

Figure CN115748806B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of geotechnical engineering, in particular to an assembled shock-absorbing and reinforced retaining wall. Background Art
[0002] With the rapid development of my country's economy and the accelerating urbanization process, urban underground space is being continuously developed, and tunnels, highways, and mountain infrastructure are being rapidly constructed and developed. The area and depth of these structures are constantly expanding. Considering the need to expand usable space and stabilize building foundations, retaining walls are often required to provide support in projects such as slopes and foundation pits. As a lightweight retaining structure, retaining walls rely on the weight of the wall itself and the weight of the fill (including the load) above the wall base to maintain their stability. They can effectively support roadbed fill or hillside soil, preventing deformation and instability of the fill or soil, and are widely used in various projects.
[0003] When designing and using existing retaining walls, little consideration is given to optimizing seismic performance.
[0004] Traditional retaining wall concrete construction involves on-site pouring, which involves processes such as formwork erection, concrete curing, and formwork removal. This results in a long construction cycle and difficult-to-control construction quality. Furthermore, on-site open-air work is susceptible to the effects of natural conditions, making disassembly and reuse unfavorable. This damages the surrounding environment to a certain extent, resulting in a waste of resources and hindering project cost control and construction efficiency. To reduce the construction cycle of retaining walls, prefabricated retaining walls are used for on-site assembly, saving time for concrete pouring and curing. Existing prefabricated retaining walls mostly use rigid connections. Once damaged by dynamic loads, they can cause overall damage and deformation and instability of the supported slope. Furthermore, the anchor rods have poor pullout resistance and cannot fully provide lateral pullout force and pullout resistance. Furthermore, the accumulation of groundwater in the soil can lead to increased water-soil pressure, which in turn increases the load transferred to the retaining wall and can easily cause the retaining wall to become unstable. For example, under the action of earthquake loads, the soil is very likely to liquefy, resulting in a significant increase in the earth pressure of the soil on the retaining wall, which can easily cause the retaining wall to slide, tilt, crack or even be destroyed, resulting in significant economic losses and safety accidents. Summary of the Invention
[0005] The technical problem to be solved by the present invention is to provide an assembled shock-absorbing and reinforced retaining wall with good shock-absorbing performance and pull-out resistance, eliminating the problem of excessive load on the retaining wall caused by water pressure.
[0006] The technical solution of the present invention is:
[0007] An assembled shock-absorbing and reinforced retaining wall comprises a high-damping shock-absorbing wall, a high-damping foundation plate, an expanded-diameter anti-pullout anchor rod, a drainage pipe, and a plurality of water diversion pipes. The high-damping shock-absorbing wall is an inverted Y-shaped wall structure, with both bottom ends of the high-damping shock-absorbing wall supported on the ground, and one bottom end of the high-damping shock-absorbing wall being fixedly connected to the inner end of the high-damping foundation plate.
[0008] The expanded diameter pull-out anchor rods include a plurality of bottom expanded diameter pull-out anchor rods and a plurality of side expanded diameter pull-out anchor rods, the plurality of bottom expanded diameter pull-out anchor rods are vertically arranged, the plurality of bottom expanded diameter pull-out anchor rods are connected to the high-damping foundation bottom plate, the high-damping foundation bottom plate is anchored to the soil below the high-damping foundation bottom plate through the plurality of bottom expanded diameter pull-out anchor rods, the plurality of side expanded diameter pull-out anchor rods are horizontally arranged from top to bottom, the plurality of side expanded diameter pull-out anchor rods are connected to the vertical part of the high-damping shock-absorbing wall, and the high-damping shock-absorbing wall is anchored to the soil on the side of the high-damping shock-absorbing wall through the plurality of side expanded diameter pull-out anchor rods;
[0009] The drainage pipe is arranged in the inverted V-shaped groove at the bottom of the high-damping shock-absorbing wall and extends along the length direction of the high-damping shock-absorbing wall. Multiple water diversion pipes are distributed along the axial direction of the drainage pipe. One end of each water diversion pipe is connected to the drainage pipe, and the other end of each water diversion pipe extends to the soil on the side of the high-damping shock-absorbing wall.
[0010] The bottom end expanded diameter anti-pullout anchor rod and the side expanded diameter anti-pullout anchor rod both include a grouting pipe, an expanding cap, an expanding cylinder, a positioning nut and a locking nut;
[0011] The grouting pipe is divided into an outer part, a middle part and an inner part along the axial direction. The outer part of the grouting pipe is provided with an external thread. The expansion cap is fixedly connected to the inner part of the grouting pipe. The outer diameter of the expansion cap is larger than the outer diameter of the outer part of the grouting pipe. The middle part of the grouting pipe is a reducer structure. The outer diameters of the two ends of the middle part of the grouting pipe are respectively equal to the outer diameter of the outer part of the grouting pipe and the outer diameter of the expansion cap. A row of grouting holes is provided on the grouting pipe along the axial direction of the grouting pipe. In the row of grouting holes, the innermost grouting hole is adjacent to the inner end of the grouting pipe, and the outermost grouting hole is located on the part of the grouting pipe provided with the external thread.
[0012] The expansion tube is mounted on the grouting pipe, and an expansion slot extending outward is provided at the inner end of the expansion tube. When the expansion tube is not under stress, the expansion tube is a constant diameter tube. The inner diameter of the expansion tube is larger than the outer diameter of the outside of the grouting pipe and smaller than the outer diameter of the expansion cap. The length of the expansion tube is not less than the distance between the bottom end of the external thread on the grouting pipe and the bottom end of the grouting pipe. The positioning nut is threadedly connected to the outside of the grouting pipe and is in close contact with the outer end of the expansion tube. The outer end of the grouting pipe passes outward through the through-hole on the vertical part of the high-damping shock-absorbing wall or the high-damping foundation bottom plate. The locking nut is threadedly connected to the outside of the grouting pipe and is in locking contact with the outer side surface of the vertical part of the high-damping shock-absorbing wall or the top surface of the high-damping foundation bottom plate.
[0013] The expanding tube is provided with two expanding slits, which are symmetrical along the radial direction of the expanding tube.
[0014] A gasket is fixed on the outer end of the expanding cylinder, and the positioning nut is in close contact with the gasket.
[0015] A shock-absorbing plate is laid directly below the high-damping foundation bottom plate.
[0016] The high-damping shock-absorbing wall comprises multiple blocks, which are arranged side by side and connected by multiple prestressed anchor cables. The vertical part of each high-damping shock-absorbing wall is provided with multiple through-holes that pass through both sides of the high-damping shock-absorbing wall. The multiple through-holes are arranged in parallel from top to bottom. Each prestressed anchor cable passes through the through-holes at the same height of the multiple high-damping shock-absorbing walls in turn. Both ends of the prestressed anchor cable extend out of the high-damping shock-absorbing wall, and both ends of the prestressed anchor cable are connected to prestressed anchor pieces. The two prestressed anchor pieces on each prestressed anchor cable are respectively anchored to the two high-damping shock-absorbing walls located at the two ends.
[0017] In the plurality of high-damping shock-absorbing walls, a gap is left between two adjacent high-damping shock-absorbing walls, and a shock-absorbing rubber pad is fixedly connected between the two adjacent high-damping shock-absorbing walls.
[0018] The high-damping shock-absorbing wall and the high-damping foundation base plate are integrated plastic structures. Both the high-damping shock-absorbing wall and the high-damping foundation base plate are cast by high-damping concrete. The high-damping concrete is mixed by adding damping material to lightweight concrete. The volume of the damping material accounts for 20-30% of the total volume of the high-damping concrete. The damping material is selected from polyvinyl alcohol, polypropylene emulsion, styrene-butadiene latex or waste rubber.
[0019] The shock-absorbing plate is a discarded rubber shock-absorbing plate.
[0020] Advantages of the present invention:
[0021] (1) The present invention is an assembled retaining wall structure that can realize the characteristics of factory prefabrication and on-site rapid assembly, which is conducive to shortening the construction period, effectively controlling the construction quality, and having little impact on the surrounding environment; the high damping shock-absorbing wall of the present invention uses an inverted Y-shaped structure to form a more stable double support point, which is conducive to improving the vertical bearing performance of the retaining wall and providing better support for resisting the pressure of the soil.
[0022] (2) The expanded diameter pull-out anchor rod of the present invention has a simple structure and is easy to install and construct. It is integrated with the installation and fixation of the retaining wall. Compared with conventional anchor rods, it does not require secondary construction. The bottom expanded diameter structure makes it have better pull-out resistance, provides resistance to the instability and damage of the retaining wall, and improves the service life of the retaining wall.
[0023] (3) The high-damping shock-absorbing wall and high-damping foundation slab of the present invention are both made of high-damping concrete. Under earthquake conditions, the ductility and seismic resistance of high-damping concrete are better than those of conventional concrete, thereby improving the seismic resistance of the retaining wall.
[0024] (4) The present invention pre-lays discarded rubber shock-absorbing plates under the high-damping foundation bottom plate. The discarded rubber shock-absorbing plates can effectively reduce the impact of the transmission of stratum seismic waves on the upper structure, reduce the damage of seismic loads to the retaining wall structure, and further improve the seismic performance of the retaining wall.
[0025] (5) The present invention makes full use of the inverted Y-shaped structure of the high-damping shock-absorbing wall and sets a drainage pipe in its inverted V-shaped groove to provide a drainage path without the need to open a separate drainage ditch. It also cooperates with the water diversion pipe to unload the accumulated water at the bottom of the lateral soil, eliminating the problem of excessive load on the retaining wall caused by water pressure.
[0026] (6) The present invention can avoid the problem of the retaining wall being damaged at the connection nodes due to rigid contact under the action of dynamic loads by providing prestressed anchor cables and shock-absorbing rubber pads, which eventually leads to through cracks and overall collapse. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a cross-sectional view of the present invention.
[0028] Figure 2 It is a schematic diagram of the connection structure of the high damping shock-absorbing wall of the present invention.
[0029] Figure 3 It is a schematic structural diagram of the expanded diameter anti-pullout anchor rod of the present invention in the expanded diameter state.
[0030] Figure 4 It is a structural schematic diagram of the grouting pipe of the present invention.
[0031] Figure 5 It is a structural schematic diagram of the expanding cylinder of the present invention.
[0032] Figure numerals: 1-high damping shock-absorbing wall, 2-high damping foundation bottom plate, 3-discarded rubber shock-absorbing plate, 4-drainage pipe, 5-water diversion pipe, 6-bottom end expanded diameter pull-out anchor rod, 7-side expanded diameter pull-out anchor rod, 8-prestressed anchor cable, 9-shock-absorbing rubber pad, 10-prestressed anchor, 61-grouting pipe, 62-expansion cap, 63-expansion cylinder, 64-positioning nut, 65-locking nut, 66-grouting hole, 67-expansion gap, 68-gasket. DETAILED DESCRIPTION
[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0034] See Figure 1 and Figure 2 A prefabricated shock-absorbing and reinforced retaining wall comprises a plurality of high-damping shock-absorbing walls 1, a plurality of high-damping foundation bottom plates 2, discarded rubber shock-absorbing plates 3, expanded-diameter anti-pulling anchor rods, a drainage pipe 4 and a plurality of water diversion pipes 5. Each high-damping shock-absorbing wall 1 is an inverted Y-shaped wall structure. The two bottom ends of each high-damping shock-absorbing wall 1 are supported on the ground. One of the bottom ends of each high-damping shock-absorbing wall 1 is fixedly connected to the inner end of a corresponding high-damping foundation bottom plate 2. The positive ends of the plurality of high-damping foundation bottom plates 2 are fixedly connected to the inner ends of the plurality of high-damping foundation bottom plates 2. A waste rubber damping plate 3 is laid underneath; wherein each high-damping damping wall 1 and a corresponding high-damping foundation slab 2 are an integrated plastic structure, and the high-damping damping wall 1 and the high-damping foundation slab 2 are both cast by high-damping concrete. The high-damping concrete is formed by adding damping material to lightweight concrete. The volume of the damping material accounts for 20-30% of the total volume of the high-damping concrete. The damping material is selected from polyvinyl alcohol, polypropylene emulsion, styrene-butadiene latex or waste rubber;
[0035] A plurality of high-damping shock-absorbing walls 1 are arranged side by side and connected by a plurality of prestressed anchor cables 8. A gap is left between two adjacent high-damping shock-absorbing walls 1. A shock-absorbing rubber pad 9 is fixedly connected between the two adjacent high-damping shock-absorbing walls 1. A plurality of through-holes penetrating the two sides of the high-damping shock-absorbing wall 1 are provided on the vertical portion of each high-damping shock-absorbing wall 1. The plurality of through-holes are arranged in parallel from top to bottom. Each prestressed anchor cable 8 passes through the through-holes at the same height of the plurality of high-damping shock-absorbing walls 1 in sequence. Both ends of the prestressed anchor cable 8 extend out of the high-damping shock-absorbing wall 1, and both ends of the prestressed anchor cable 8 are connected to prestressed anchor pieces 10. The two prestressed anchor pieces 10 on each prestressed anchor cable 8 are respectively anchored to the two high-damping shock-absorbing walls 1 located at the two ends.
[0036] The expanded diameter pull-out anchor rods include a plurality of bottom expanded diameter pull-out anchor rods 6 and a plurality of side expanded diameter pull-out anchor rods 7, the plurality of bottom expanded diameter pull-out anchor rods 6 are vertically arranged, the plurality of bottom expanded diameter pull-out anchor rods 6 are connected to the high-damping foundation base plate 2 and the discarded rubber shock-absorbing plate 3, the high-damping foundation base plate 2 and the discarded rubber shock-absorbing plate 3 are anchored to the soil below the discarded rubber shock-absorbing plate 3 through the plurality of bottom expanded diameter pull-out anchor rods 6, the plurality of side expanded diameter pull-out anchor rods 7 are horizontally arranged from top to bottom, the plurality of side expanded diameter pull-out anchor rods 7 are connected to the vertical part of the high-damping shock-absorbing wall 1, and the high-damping shock-absorbing wall 1 is anchored to the soil on the side of the high-damping shock-absorbing wall 1 through the plurality of side expanded diameter pull-out anchor rods 7;
[0037] The drainage pipe 4 is arranged in the inverted V-shaped groove at the bottom of the high-damping shock-absorbing wall 1 and extends along the length direction of the high-damping shock-absorbing wall 1. Multiple water pipes 5 are distributed along the axial direction of the drainage pipe 4. One end of each water pipe 5 is connected to the drainage pipe 4, and the other end of each water pipe 5 extends to the soil on the side of the high-damping shock-absorbing wall 1.
[0038] See Figure 3-Figure 5 The bottom expanded diameter anti-pullout anchor rod 6 and the side expanded diameter anti-pullout anchor rod 7 both include a grouting pipe 61, an expanding cap 62, an expanding cylinder 63, a positioning nut 64 and a locking nut 65; the grouting pipe 61 is axially divided into an outer part, a middle part and an inner part, the outer part of the grouting pipe 61 is provided with an external thread, the expanding cap 62 is fixedly connected to the inner part of the grouting pipe 61, the outer diameter of the expanding cap 62 is larger than the outer diameter of the outer part of the grouting pipe 61, the middle part of the grouting pipe 61 is a reducer structure, the outer diameters of the two ends of the middle of the grouting pipe 61 are respectively equal to the outer diameter of the outer part of the grouting pipe 61 and the outer diameter of the expanding cap 62, a row of grouting holes 66 is provided on the grouting pipe 61 along the axial direction of the grouting pipe 61, in a row of grouting holes, the innermost grouting hole 66 is adjacent to the inner end of the grouting pipe 61, and the outermost grouting hole 66 is located on the part of the grouting pipe 61 provided with an external thread; the expanding cylinder 63 is sleeved on the grouting pipe 61, and the expanding The inner end of the diameter cylinder 63 is provided with two outwardly extending expansion slots 67, and the two expansion slots 67 are symmetrical along the radial direction of the expansion cylinder 63. When the expansion cylinder 63 is not under stress, the expansion cylinder 63 is a constant diameter tube. The inner diameter of the expansion cylinder 63 is larger than the outer diameter of the outside of the grouting pipe 61 and smaller than the outer diameter of the expansion cap 62. The length of the expansion cylinder 63 is equal to the distance between the bottom end of the external thread on the grouting pipe 61 and the bottom end of the grouting pipe 61. A gasket 68 is fixed on the outer end of the expansion cylinder 63, and the positioning nut 64 is threadedly connected to the outside of the grouting pipe 61 and is in close contact with the gasket 68. The outer end of the grouting pipe 61 passes outward through the through-holes on the vertical part of the high-damping shock-absorbing wall 1 or the high-damping foundation bottom plate 2 and the discarded rubber shock-absorbing plate 3. The locking nut 65 is threadedly connected to the outside of the grouting pipe 61 and is in locking contact with the outer side surface of the vertical part of the high-damping shock-absorbing wall 1 or the top surface of the high-damping foundation bottom plate 2.
[0039] Construction steps of the present invention:
[0040] (1) First, all the grouting pipes 61 of the bottom expanded anti-pullout anchor rods 6 are pre-driven into the ground soil, and all the grouting pipes 61 of the side expanded anti-pullout anchor rods 7 are pre-driven into the soil slope, and then the expanded diameter tube 63 is squeezed inward, and the expanded diameter slit 67 on the expanded diameter tube 63 is opened by the expanded diameter cap 62, and the expanded diameter tube 63 forms an expanded diameter structure, and the positioning nut 64 is threadedly connected to the outside of the grouting pipe 61 and is in close contact with the gasket 68 to achieve the positioning of the expanded diameter tube 63, and finally grouting is injected into the grouting pipe 61 through the grouting hole 66, and the slurry flows out from the grouting hole 66 into the expanded diameter tube 63 at the same time, and is poured into the cavity between the expanded diameter tube 63 and the grouting pipe 61, thereby forming a stable expanded diameter anti-pullout anchor rod;
[0041] (2) Lay the discarded rubber shock-absorbing plate 3 on the ground, and the outer ends of all the bottom-end enlarged diameter anti-pullout anchor rods 6 grouting pipes 61 are passed upward from the perforations on the discarded rubber shock-absorbing plate 3. Then, after placing the drainage pipe 4, install the integrated high-damping shock-absorbing wall 1 and the high-damping foundation bottom plate 2. The multiple high-damping foundation bottom plates 2 are all placed on the discarded rubber shock-absorbing plate 3. The multiple high-damping shock-absorbing walls 1 are all close to the soil slope. The drainage pipe 4 is located in the inverted V-shaped groove at the bottom of the multiple high-damping shock-absorbing walls 1. The drainage pipe 4 The multiple water diversion pipes 5 on the upper part are respectively led out from between two adjacent high-damping shock-absorbing walls 1 and extended into the soil slope. The outer ends of the grouting pipes 61 of the side expanded diameter anti-pullout anchor rods 7 pass through the through-holes on the high-damping shock-absorbing wall 1, and the outer ends of the grouting pipes 61 of the bottom expanded diameter anti-pullout anchor rods 6 pass through the through-holes on the high-damping foundation bottom plate 2. The locking nuts 65 are threadedly connected to the outside of each grouting pipe 61 and are in locking contact with the outer side surface of the vertical portion of the high-damping shock-absorbing wall 1 or the top surface of the high-damping foundation bottom plate 2.
[0042] (3) A shock-absorbing rubber pad 9 is connected between two adjacent high-damping shock-absorbing walls 1. Each prestressed anchor cable 8 passes through the perforations of multiple high-damping shock-absorbing walls 1 at the same height in turn. Both ends of the prestressed anchor cable 8 extend out of the high-damping shock-absorbing wall 1. The two prestressed anchor pieces 10 on each prestressed anchor cable 8 are anchored and connected to the two high-damping shock-absorbing walls 1 at the two ends respectively.
[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. An assembled shock-absorbing and reinforced retaining wall, characterized by: It includes a high-damping shock-absorbing wall, a high-damping foundation bottom plate, an expanded-diameter anti-pullout anchor rod, a drainage pipe, and multiple water pipes. The high-damping shock-absorbing wall is an inverted Y-shaped wall structure. The two bottom ends of the high-damping shock-absorbing wall are supported on the ground, and one of the bottom ends of the high-damping shock-absorbing wall is fixedly connected to the inner end of the high-damping foundation bottom plate. The expanded diameter pull-out anchor rods include a plurality of bottom expanded diameter pull-out anchor rods and a plurality of side expanded diameter pull-out anchor rods, the plurality of bottom expanded diameter pull-out anchor rods are vertically arranged, the plurality of bottom expanded diameter pull-out anchor rods are connected to the high-damping foundation bottom plate, the high-damping foundation bottom plate is anchored to the soil below the high-damping foundation bottom plate through the plurality of bottom expanded diameter pull-out anchor rods, the plurality of side expanded diameter pull-out anchor rods are horizontally arranged from top to bottom, the plurality of side expanded diameter pull-out anchor rods are connected to the vertical part of the high-damping shock-absorbing wall, and the high-damping shock-absorbing wall is anchored to the soil on the side of the high-damping shock-absorbing wall through the plurality of side expanded diameter pull-out anchor rods; The drainage pipe is arranged in the inverted V-shaped groove at the bottom of the high-damping shock-absorbing wall and extends along the length direction of the high-damping shock-absorbing wall. Multiple water diversion pipes are distributed along the axial direction of the drainage pipe. One end of each water diversion pipe is connected to the drainage pipe, and the other end of each water diversion pipe extends to the soil on the side of the high-damping shock-absorbing wall.
2. The assembled shock-absorbing and reinforced retaining wall according to claim 1, characterized in that: The bottom end expanded diameter anti-pullout anchor rod and the side expanded diameter anti-pullout anchor rod both include a grouting pipe, an expanding cap, an expanding cylinder, a positioning nut and a locking nut; The grouting pipe is divided into an outer part, a middle part and an inner part along the axial direction. The outer part of the grouting pipe is provided with an external thread. The expansion cap is fixedly connected to the inner part of the grouting pipe. The outer diameter of the expansion cap is larger than the outer diameter of the outer part of the grouting pipe. The middle part of the grouting pipe is a reducer structure. The outer diameters of the two ends of the middle part of the grouting pipe are respectively equal to the outer diameter of the outer part of the grouting pipe and the outer diameter of the expansion cap. A row of grouting holes is provided on the grouting pipe along the axial direction of the grouting pipe. In the row of grouting holes, the innermost grouting hole is adjacent to the inner end of the grouting pipe, and the outermost grouting hole is located on the part of the grouting pipe provided with the external thread. The expansion tube is mounted on the grouting pipe, and an expansion slot extending outward is provided at the inner end of the expansion tube. When the expansion tube is not under stress, the expansion tube is a constant diameter tube. The inner diameter of the expansion tube is larger than the outer diameter of the outside of the grouting pipe and smaller than the outer diameter of the expansion cap. The length of the expansion tube is not less than the distance between the bottom end of the external thread on the grouting pipe and the bottom end of the grouting pipe. The positioning nut is threadedly connected to the outside of the grouting pipe and is in close contact with the outer end of the expansion tube. The outer end of the grouting pipe passes outward through the through-hole on the vertical part of the high-damping shock-absorbing wall or the high-damping foundation bottom plate. The locking nut is threadedly connected to the outside of the grouting pipe and is in locking contact with the outer side surface of the vertical part of the high-damping shock-absorbing wall or the top surface of the high-damping foundation bottom plate.
3. The assembled shock-absorbing and reinforced retaining wall according to claim 2, characterized in that: The expanding tube is provided with two expanding slits, which are symmetrical along the radial direction of the expanding tube.
4. The assembled shock-absorbing and reinforced retaining wall according to claim 2, characterized in that: A gasket is fixed on the outer end of the expanding cylinder, and the positioning nut is in close contact with the gasket.
5. The assembled shock-absorbing and reinforced retaining wall according to claim 1, characterized in that: A shock-absorbing plate is laid directly below the high-damping foundation bottom plate.
6. The assembled shock-absorbing and reinforced retaining wall according to claim 1, characterized in that: The high-damping shock-absorbing wall comprises multiple blocks, which are arranged side by side and connected by multiple prestressed anchor cables. The vertical part of each high-damping shock-absorbing wall is provided with multiple through-holes that pass through both sides of the high-damping shock-absorbing wall. The multiple through-holes are arranged in parallel from top to bottom. Each prestressed anchor cable passes through the through-holes at the same height of the multiple high-damping shock-absorbing walls in turn. Both ends of the prestressed anchor cable extend out of the high-damping shock-absorbing wall, and both ends of the prestressed anchor cable are connected to prestressed anchor pieces. The two prestressed anchor pieces on each prestressed anchor cable are respectively anchored to the two high-damping shock-absorbing walls located at the two ends.
7. The assembled shock-absorbing and reinforced retaining wall according to claim 6, characterized in that: In the plurality of high-damping shock-absorbing walls, a gap is left between two adjacent high-damping shock-absorbing walls, and a shock-absorbing rubber pad is fixedly connected between the two adjacent high-damping shock-absorbing walls.
8. The assembled shock-absorbing and reinforced retaining wall according to claim 1, characterized in that: The high-damping shock-absorbing wall and the high-damping foundation base plate are integrated plastic structures. Both the high-damping shock-absorbing wall and the high-damping foundation base plate are cast by high-damping concrete. The high-damping concrete is mixed by adding damping material to lightweight concrete. The volume of the damping material accounts for 20-30% of the total volume of the high-damping concrete. The damping material is selected from polyvinyl alcohol, polypropylene emulsion, styrene-butadiene latex or waste rubber.
9. The assembled shock-absorbing and reinforced retaining wall according to claim 5, characterized in that: The shock-absorbing plate is a discarded rubber shock-absorbing plate.
Citation Information
Patent Citations
Anchor rod retaining wall combined with main structure and design method
CN106638674A
Structure of anti-blocking drainage facility of retaining wall
CN113529690A