A reinforcing device for anti-slide pile
Patent Information
- Application Number
- CN202311486479.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-09
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2043-11-09
AI Technical Summary
[0003]经研究发现,由于边坡土体滑坡的能量较大,而抗滑桩不易缓冲和消耗土体的冲击力,因此在土体下滑过程中,抗滑桩上露部分的迎坡面受力负载极大,又由于抗滑桩抗弯强度有限很容易发生疲劳折弯,甚至当土体下滑急速且冲击较大时,抗滑桩承受非常容易发生断裂,导致抗滑桩的使用效率极低
[0015]与现有技术相比,本发明的有益效果在于:设置的支护件位于套件的迎坡面一侧,当发生土体滑坡时,支护件会首先与土体进行接触,避免了冲击力直接对抗滑桩进行冲击,通过设置的加固件与套件固定连接,加固件用以对套件起到牢固的作用,当土体滑坡时能够配合支护件为抗滑桩分担负载应力,避免抗滑桩因应力集中而负载过大发生折弯,通过给支护件设置多个弹性件以及耗能组件,能够在支护件与土体接触的瞬间,支护件能够沿着套件上发生位移,位移的过程中弹性件能够通过弹力形变来对冲击力起到一定的缓冲效果,同时还能够利用弹性件的形变来损耗部分冲击力,配合耗能组件来对负载冲击力实现能量消耗的作用,从而降低了抗滑桩承力部分的疲劳折弯和断裂风险,整体实现了对抗滑桩强度加固的有益效果。
Smart Images

Figure CN117418552B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of landslide control technology, and in particular to a reinforcement device for anti-slide piles. Background Technology
[0002] Loess refers to yellow silty soil deposits transported by wind during the Quaternary period in geological history. In the construction of roads, mining projects, and urban development in loess regions, numerous slopes are inevitably created. If slopes are improperly excavated and exposed for extended periods, the combined effects of excavation unloading and rainwater infiltration can easily lead to slope deformation and damage, even resulting in landslides. This can cause significant property damage and even casualties, severely impacting the smooth progress of construction projects and damaging the fragile ecological environment of loess regions, causing irreparable losses to engineering projects. Currently, landslide control in loess typically employs multiple rows of anti-slide piles for support. These piles are usually formed by reinforcing cages and concrete pouring, and they penetrate deep into the landslide bed to resist the sliding force of the landslide mass, thus stabilizing the slope. The exposed portion of the anti-slide piles is reinforced with anchor cables for tensile strength. Anti-slide piles are suitable for shallow and medium-thick landslides and are a primary measure for anti-slide treatment.
[0003] Research has found that due to the large energy of landslides on slopes, and the fact that anti-slide piles are not good at buffering and absorbing the impact force of the soil, the exposed part of the anti-slide piles on the slope face is subjected to a huge load during the soil sliding process. Furthermore, due to the limited bending strength of the anti-slide piles, they are prone to fatigue bending. In fact, when the soil slides rapidly and the impact is large, the anti-slide piles are very easy to break, resulting in extremely low efficiency of anti-slide piles. Summary of the Invention
[0004] This invention provides a reinforcement device for anti-slide piles. The elastic element can buffer the impact force through elastic deformation. At the same time, the deformation of the elastic element can also dissipate part of the impact force. In conjunction with the energy dissipation component, it can dissipate the energy of the load impact force, thereby reducing the risk of fatigue bending and fracture of the load-bearing part of the anti-slide pile. Overall, it achieves the beneficial effect of strengthening the anti-slide pile.
[0005] This invention provides a reinforcement device for anti-slide piles, comprising: a kit, multiple reinforcement members, a support member, multiple elastic members, and multiple energy-dissipating components. The kit is fitted onto the exposed portion of the anti-slide pile and is fixedly connected to the anti-slide pile. Multiple reinforcement members are fixedly connected to the bottom of the kit, with their lower ends extending into the soil to stabilize the kit and the anti-slide pile. The support member is disposed on one side of the upslope face of the kit and is slidably connected to the kit, serving to contact and block sliding soil. Multiple elastic members are disposed between the kit and the support member, buffering the impact force of the soil on the support member when it contacts the soil. Multiple energy-dissipating components are disposed between the kit and the support member to dissipate the impact force of sliding soil.
[0006] Preferably, the support member is arranged in an elliptical arc on the side closest to the slope.
[0007] Preferably, the support member is set in a cone shape with the middle part protruding towards the slope on the side closest to the slope, and the cone surface is stepped and the stepped surface is inclined.
[0008] Preferably, the support component has multiple cylindrical parts fixedly connected to the side near the kit. The number and position of the cylindrical parts and the elastic parts are matched and correspond. The kit has a groove at the position of the cylindrical part. The cylindrical part is slidably connected to the groove. The end of the cylindrical part near the kit is open. The elastic part is placed inside the cylindrical part and one end is fixedly connected to the inner wall of the cylindrical part. The other end is fixedly connected to the inner wall of the groove of the kit.
[0009] Preferably, the kit has cavities corresponding to the positions of each energy-consuming component, and multiple energy-consuming components are placed in each cavity. Each energy-consuming component includes: a slide rod, a plate, a first airbag, a pressure plate, two pipes, and multiple resistance plates matching the inner diameter of the pipes. One end of the slide rod is fixedly connected to the support component, and the other end passes through the kit and extends into the cavity. The plate is fixedly connected to the cavity, and a groove is formed on the side of the plate near the slide rod. The first airbag is placed in the groove and is capable of deformation and shape memory recovery. The air inlet and outlet of the first airbag are far from the slide rod and penetrate the plate. The pressure plate is fixedly connected to the end of the slide rod to squeeze the first airbag. The air inlet end is connected to the air inlet and outlet of the first airbag. The two pipes are connected to the first airbag through a connecting pipe at their close ends. Specifically, the connecting pipe is a three-way pipe, and the two pipes are connected to the two air outlet ends of the three-way pipe. Multiple resistance plates that match the inner diameter of the pipes are respectively set inside the two pipes and fixedly connected to the inner wall of the pipes. Each resistance plate has a flow hole.
[0010] Preferably, two adjacent flow holes are staggered, and the distance between the axes of two adjacent flow holes is at its maximum.
[0011] Preferably, the pressure plate includes two plates with a connecting rod between them. The pressure plate is arranged in an "I" shape along its vertical projection. Both sides of the pressure plate are provided with cranks in an "L" shape. The inflection points of the two cranks are rotatably connected to the inner wall of the assembly. The first bend of the crank is placed between the two plates and leaves a gap with the connecting rod. The second bend of the crank extends toward the tube. A first magnet is fixedly connected to both side walls inside the cavity. A second magnet is connected to the side of the second bend of the two cranks near the corresponding first magnet. The first magnet and the second magnet are repulsive magnets of the same polarity.
[0012] Preferably, it also includes two second airbags, which are fixedly connected to both sides of the cavity. The second airbags are located between the second magnet and the first magnet. The air outlets of the two tubes are respectively connected to the adjacent second airbags. The second magnet is hinged to the side of the second bend through a hinge plate.
[0013] Preferably, the groove is hemispherical, the first airbag is spherical and the hemisphere is embedded in the groove, the first airbag is in contact with the plate of the pressure plate when it is inflated, the second airbag fills the side wall of the cavity, and the second airbag is in clearance fit with the second magnet when it is not deformed.
[0014] Preferably, flanges are provided on both sides of the support member to prevent soil from sliding down to both sides of the support member.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the support component is located on the upslope side of the kit. When a landslide occurs, the support component will first come into contact with the soil, avoiding direct impact of the impact force on the anti-slide pile. The reinforcement component is fixedly connected to the kit to ensure the kit's stability. When a landslide occurs, the support component can share the load stress with the anti-slide pile, preventing the anti-slide pile from bending due to excessive load caused by stress concentration. By setting multiple elastic components and energy-dissipating components on the support component, the support component can move along the kit at the moment of contact with the soil. During the displacement, the elastic component can buffer the impact force through elastic deformation and dissipate some of the impact force. In conjunction with the energy-dissipating components, the impact force is dissipated, thereby reducing the risk of fatigue bending and fracture of the load-bearing part of the anti-slide pile. Overall, the beneficial effect of strengthening the anti-slide pile is achieved. Attached Figure Description
[0016] Figure 1 A side view structural schematic diagram of a first embodiment of an anti-slide pile reinforcement device provided by an embodiment of the present invention;
[0017] Figure 2 A top-view structural schematic diagram of a first embodiment of an anti-slide pile reinforcement device provided by an embodiment of the present invention;
[0018] Figure 3 for Figure 2 A magnified view of part A in the middle;
[0019] Figure 4 for Figure 3 A magnified view of part B in the middle section;
[0020] Figure 5 This is a schematic diagram of the plate structure in an anti-slide pile reinforcement device provided in an embodiment of the present invention;
[0021] Figure 6 A schematic diagram of the structure of a tee pipe in an anti-slide pile reinforcement device provided in an embodiment of the present invention;
[0022] Figure 7 This is a schematic diagram of a second embodiment of an anti-slide pile reinforcement device provided by an embodiment of the present invention.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Anti-slip pile; 2. Kit; 21. Slide groove; 22. Cavity; 3. Reinforcing member; 4. Support member; 5. Elastic member; 51. Spring; 6. Energy dissipation component; 61. Slide rod; 62. Plate; 621. Groove; 63. First airbag; 64. Pressure plate; 641. Plate; 642. Connecting rod; 65. T-pipe; 66. Pipe fitting; 67. Resistance plate; 671. Flow hole; 7. Crank rod; 71. Second magnet; 8. First magnet; 9. Second airbag; 10. Flange; 11. Cylinder. Detailed Implementation
[0025] The following detailed description of a specific embodiment of the present invention is provided in conjunction with the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.
[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0027] refer to Figure 1 and Figure 2This invention provides a reinforcement device for anti-slide piles, comprising: a kit 2, multiple reinforcing members 3, a support member 4, multiple elastic members 5, and multiple energy-dissipating components 6. The kit 2 is fitted onto the exposed portion of the anti-slide pile 1 and is fixedly connected to the anti-slide pile 1. The multiple reinforcing members 3 are all fixedly connected to the bottom of the kit 2, with the lower part of the reinforcing members 3 extending into the soil to stabilize the kit 2 and the anti-slide pile 1. The support member 4 is disposed on one side of the slope-facing side of the kit 2 and is slidably connected to the kit 2. The support member 4 is used to contact and block the sliding soil. The multiple elastic members 5 are disposed between the kit 2 and the support member 4. When the support member 4 contacts the soil, the elastic member 5 is used to buffer the impact force of the soil on the support member 4. The multiple energy-dissipating components 6 are disposed between the kit 2 and the support member 4 to dissipate the impact force of the sliding soil.
[0028] In the above embodiments, the shape of the kit 2 matches that of the anti-slide pile 1, and the inner size of the kit 2 matches that of the anti-slide pile 1. The two fit tightly and are fixedly connected. The support member 4 is located on the upslope side of the kit 2. When a landslide occurs, the support member 4 will first come into contact with the soil, avoiding direct impact of the impact force on the anti-slide pile 1. The reinforcement member 3 is fixedly connected to the kit 2 to secure the kit 2. When a landslide occurs, the reinforcement member 3 can work with the support member 4 to share the load stress of the anti-slide pile 1, preventing the anti-slide pile 1 from being overloaded due to stress concentration. When excessive load causes bending, by setting multiple elastic elements 5 and energy dissipation components 6 on the support member 4, the support member 4 can be displaced along the kit 2 at the moment of contact with the soil. During the displacement, the elastic elements 5 can buffer the impact force through elastic deformation. At the same time, the deformation of the elastic elements 5 can also dissipate part of the impact force. Together with the energy dissipation components 6, it can dissipate the energy of the load impact force, thereby reducing the risk of fatigue bending and fracture of the load-bearing part of the anti-slide pile 1. Overall, it achieves the beneficial effect of strengthening the anti-slide pile 1.
[0029] Further, the first embodiment refers to Figure 2 The support component 4 is set in an elliptical arc on the side closest to the slope.
[0030] In the above embodiments, by limiting the support member 4 to have an elliptical arc surface, it can guide the impact force of the soil, thereby increasing the displacement of the soil.
[0031] Furthermore, the second embodiment refers to... Figure 7 Considering that the elliptical arc surface support 4 has poor guiding force buffering effect on the impact force, the support 4 is set in a cone shape with the middle part protruding towards the slope on the side close to the slope, and the cone surface is stepped and the stepped surface is inclined.
[0032] In the above embodiments, by defining the shape of the support member 4, multiple stepped outer edges can be used to resist the impact force on the soil, and the shape can be used to divide the soil to both sides to increase the buffering effect. The support member 4 can preferably be made of metal steel with a certain hardness, or it can be made of reinforced concrete structure material with lower cost.
[0033] Further, refer to Figure 2 and Figure 3 The elastic element 5 is specifically a spring 51. Multiple cylinders 11 are fixedly connected to the side of the support 4 near the kit 2. The number and position of the cylinders 11 match the elastic element 5. The kit 2 has a groove 21 at the position corresponding to the cylinder 11. The cylinder 11 is slidably connected to the groove 21. The end of the cylinder 11 near the kit 2 is open. The elastic element 5 is placed inside the cylinder 11 and one end is fixedly connected to the inner wall of the cylinder 11, and the other end is fixedly connected to the inner wall of the groove 21 of the kit 2.
[0034] In the above embodiments, the spring 51 is a high-strength memory returnable spring commonly used in engineering. It can resist large load impact forces. At the same time, the spring 51 can buffer the impact force as it is compressed and deformed. The frequent compression of the spring 51 will deform and generate heat, thereby converting part of the impact force into heat energy and dissipating it. By matching the shape of the cylindrical member 11 and the slide groove 21, it can guide the support member 4. It can only slide back and forth in one direction along the slide groove 21 with the cylindrical member 11.
[0035] Further, refer to Figure 3 and Figure 4Each component in kit 2 has a cavity 22 corresponding to the position of each energy-consuming component 6. Multiple energy-consuming components 6 are placed within each cavity 22. Each energy-consuming component 6 includes: a slide rod 61, a plate 62, a first airbag 63, a pressure plate 64, two pipe fittings 66, and multiple resistance plates 67 matching the inner diameter of the pipe fittings 66. One end of the slide rod 61 is fixedly connected to the support component 4, and the other end passes through kit 2 and extends into the cavity 22. The plate 62 is fixedly connected within the cavity 22. A groove 621 is formed on the side of the plate 62 near the slide rod 61. The first airbag 63 is disposed within the groove 621. The first airbag 63 is deformable and has shape memory recovery capabilities. The air inlet and outlet of the first airbag 63 are away from the slide rod 61 and pass through the plate 62. The pressure plate 64 is fixedly connected to the end of the slide rod 61 to compress the first airbag 63. The three-way pipe 65 is fixedly connected inside the cavity 22. The air inlet end is connected to the air inlet and outlet of the first airbag 63. The two pipe fittings 66 are connected to the first airbag 63 through a connecting pipe. Specifically, the connecting pipe is the three-way pipe 65, and the two pipe fittings 66 are connected to the two air outlet ends of the three-way pipe 65. Multiple resistance plates 67, which are matched with the inner diameter of the pipe fittings 66, are respectively set inside the two pipe fittings 66 and fixedly connected to the inner wall of the pipe fittings 66. Each resistance plate 67 has a flow hole 671. The groove 621 is hemispherical. The first airbag 63 is spherical and the hemisphere is embedded in the groove 621. When the first airbag 63 is inflated, it contacts the plate 641 of the pressure plate 64. The second airbag 9 fills the side wall of the cavity 22. When the second airbag 9 is not deformed, it is in clearance fit with the second magnet 71.
[0036] In the above embodiments, after the support member 4 is subjected to force and slides towards the anti-slide pile 1, the sliding rod 61 can slide synchronously with the support member 4 towards the cavity 22 of the kit 2. When the sliding rod 61 slides into the cavity 22, it will squeeze the first airbag 63 through the pressure plate 64. Since the first airbag 63 is spherical and the position and size of the air inlet and outlet are limited, when the first airbag 63 is squeezed, air will flow out through the air inlet and outlet. The small size of the air inlet and outlet will generate resistance to the gas flow when the air flows rapidly, thereby consuming a small part of the impact energy. The deformation of the first airbag 63 provides further cushioning for the support component 4. The three-way pipe 65 can seal and guide the gas squeezed out by the first airbag 63, allowing the gas to flow into the two pipes 66. When the gas flows into the pipes 66, it passes through each resistance plate 67 and flows through each resistance plate 67 through the flow hole 671. During this process, as the gas flow pressure is higher, the resistance force given by the resistance plate 67 is stronger. The force of the airflow acts on the flow hole 671 of the resistance plate 67, causing it to heat up and convert kinetic energy into heat energy.
[0037] Further, refer to Figure 4The two adjacent flow holes 671 are staggered, and the distance between the axes of the two adjacent flow holes 671 is extremely far.
[0038] In the above embodiments, by limiting the distribution of each flow channel, the path of airflow can be increased, thereby facilitating the dissipation of energy after the impact force is transmitted.
[0039] Further, refer to Figure 3 The pressure plate 64 includes two plates 641, with a connecting rod 642 between them. The pressure plate 64 is arranged in an "I" shape along its vertical projection. Both sides of the pressure plate 64 are provided with a crank 7, which is arranged in an "L" shape. The inflection points of the two cranks 7 are rotatably connected to the inner wall of the kit 2. The first bend of the crank 7 is placed between the two plates 641 and has a gap between it and the connecting rod 642. The second bend of the crank 7 extends toward the tube 66. A first magnet 8 is fixedly connected to both side walls inside the cavity 22. A second magnet 71 is connected to the side of the second bend of the two cranks 7 near the corresponding first magnet 8. The first magnet 8 and the second magnet 71 are repulsive magnets of the same polarity.
[0040] In the above embodiments, the pressure plate 64 and the crank 7 are provided so that the second segment of the crank 7 can rotate and shift towards the first magnet 8 during the sliding of the slide rod 61 into the cavity 22. Since the second magnet 71 and the first magnet 8 on the second segment are like poles and repel each other, the repulsive force can increase the resistance to the sliding of the slide rod 61. When the kinetic energy is too large, the second magnet 71 will give the first magnet 8 the opposite repulsive force, thereby playing a buffering effect and realizing the loss of kinetic energy.
[0041] Further, refer to Figure 3 It also includes two second airbags 9, which are fixedly connected to both sides of the cavity 22. The second airbags 9 are located between the second magnet 71 and the first magnet 8. The air outlets of the two tubes 66 are respectively connected to the adjacent second airbags 9. The second magnet 71 is hinged to the side of the second bend through a hinge plate.
[0042] In the above embodiments, the second airbag 9 can use elastic deformation to buffer and dissipate the force of the crank 7 after rotation. The second airbag 9 is connected to the tube 66. When the air in the first airbag 63 passes through the tube 66, it will enter the second airbag 9. The air in the second airbag 9 will increase and expand, thereby further increasing the resistance to the crank 7 and dissipating the impact force through deformation.
[0043] Further, refer to Figure 1 and Figure 7 Both sides of the support member 4 are provided with flanges 10, which are used to block the soil that slides to both sides of the support member 4.
[0044] In the above embodiments, the flange 10 can provide auxiliary obstruction to the flow of soil.
[0045] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.
Claims
1. A reinforcement device for anti-slide piles, characterized in that, include: The kit (2) is fitted onto the exposed part of the anti-slide pile (1), and the kit (2) is fixedly connected to the anti-slide pile (1); Multiple reinforcement members (3) are fixedly connected to the bottom of the kit (2), and the bottom of the reinforcement members (3) extends into the soil to stabilize the kit (2) and the anti-slide pile (1). Support member (4) is provided on one side of the slope of the kit (2), the support member (4) is slidably connected to the kit (2), and the support member (4) is used to contact and block the sliding soil; Multiple elastic elements (5) are disposed between the kit (2) and the support (4). When the support (4) comes into contact with the soil, the elastic elements (5) are used to buffer the impact force of the soil on the support (4). Multiple energy-consuming components (6) are disposed between the kit (2) and the support (4) to absorb the impact force of the sliding soil. The support member (4) is elliptical in shape on the side near the slope. Multiple cylindrical members (11) are fixedly connected to the side of the support member (4) near the kit (2). The number and position of the cylindrical members (11) correspond to those of the elastic members (5). The kit (2) has a groove (21) corresponding to the position of the cylindrical member (11). The cylindrical member (11) is slidably connected to the groove (21). The cylindrical member (11) has an opening at its end near the kit (2). The elastic member (5) is placed inside the cylindrical member (11), with one end fixedly connected to the inner wall of the cylindrical member (11) and the other end fixedly connected to the inner wall of the groove (21) of the kit (2). The kit (2) has cavities (22) corresponding to the positions of each energy-consuming component (6). Multiple energy-consuming components (6) are placed in each cavity (22). The energy-consuming components (6) include: The slide bar (61) is fixedly connected at one end to the support member (4), and at the other end it passes through the kit (2) and extends into the cavity (22); The plate (62) is fixedly connected to the cavity (22), and a groove (621) is provided on one side of the plate (62) near the slide rod (61). The first airbag (63) is disposed in the groove (621), and the air inlet and outlet of the first airbag (63) are far away from the slide bar (61) and penetrate the plate (62). A pressure plate (64) is fixedly connected to the end of the slide rod (61) to compress the first airbag (63). The two fittings (66) are connected to the first airbag (63) through a connecting pipe at their close ends; Multiple resistance plates (67) matching the inner diameter of the pipe fitting (66) are respectively disposed in the two pipe fittings (66) and fixedly connected to the inner wall of the pipe fitting (66). Each resistance plate (67) is provided with a flow hole (671). The two adjacent flow holes (671) are staggered, and the distance between the axes of the two adjacent flow holes (671) is extremely large. The pressure plate (64) includes two plates (641), and a connecting rod (642) is provided between the two plates (641). Both sides of the pressure plate (64) are provided with a crank (7). The turning point of the two cranks (7) is rotatably connected to the inner wall of the kit (2). The first turning segment of the crank (7) is placed between the two plates (641) and has a gap between it and the connecting rod (642). The second turning segment of the crank (7) extends toward the pipe (66). A first magnet (8) is fixedly connected to each of the two side walls inside the cavity (22). A second magnet (71) is connected to the second bend of each of the two cranks (7) near the side corresponding to the first magnet (8). The first magnet (8) and the second magnet (71) are repulsive magnets of the same polarity.
2. The anti-slide pile reinforcement device as described in claim 1, characterized in that, The support member (4) is set in a cone shape with the middle part protruding towards the slope on the side closest to the slope, and the cone surface is stepped and the stepped surface is inclined.
3. The anti-slide pile reinforcement device as described in claim 1, characterized in that, It also includes two second airbags (9), which are fixedly connected to both sides of the cavity (22). The second airbags (9) are located between the second magnet (71) and the first magnet (8). The air outlets of the two tubes (66) are respectively connected to the adjacent second airbags (9). The second magnet (71) is hinged to the side of the second bend through a hinge plate.
4. The anti-slide pile reinforcement device as described in claim 3, characterized in that, The groove (621) is hemispherical, the first airbag (63) is spherical and the hemisphere is embedded in the groove (621). When the first airbag (63) is inflated, it contacts the plate (641) of the pressure plate (64). The second airbag (9) fills the side wall of the cavity (22). When the second airbag (9) is not deformed, it is in clearance fit with the second magnet (71).
5. The anti-slide pile reinforcement device as described in claim 4, characterized in that, The support member (4) is provided with flanges (10) on both sides, which are used to block soil from sliding down to both sides of the support member (4).
Citation Information
Patent Citations
Anti-slide pile suitable for tunnel portal
CN215165506U
Side slope protection buffering energy dissipation device
CN215594070U