A support structure for steep slopes in strong earthquake zones

Abstract

This utility model discloses a support structure for steep slopes in strong earthquake zones, comprising multiple support units arranged laterally along the slope surface. Each support unit includes a set of laterally arranged frame beams and a set of longitudinally arranged rib walls. The rib walls are embedded in the slope, and the interior of the rib walls contains multiple longitudinally distributed cavities, each filled with flexible material. The frame beams are laterally fixedly connected above the rib walls, forming a grid-like frame mesh with the rib walls. An energy transfer layer is provided inside the frame mesh. The frame beams are anchored to the slope body by first anchor cables. During an earthquake, seismic waves induce shallow creep in the slope body. The flexible structure of the rib walls allows for limited horizontal displacement and absorbs some energy through compression. The frame beams deform slightly with the slope body, transferring stress to the first anchor cables. Thus, energy is absorbed through structural flexibility, avoiding stress concentration caused by rigid resistance.

Description

Technical Field

[0001] This utility model belongs to the field of geotechnical engineering technology, specifically a support structure for steep slopes in strong earthquake zones. Background Technology

[0002] For slopes in strong earthquake zones, the horizontal and vertical accelerations generated by earthquakes will disrupt the original static equilibrium of the slope, causing the soil and rock to slide, collapse, or displace. The usual solution is to set up a support structure on the slope surface to form a rigid connection structure and limit the slope deformation caused by the earthquake. However, traditional rigid support structures have poor adaptability and are prone to fracture due to local stress concentration. Utility Model Content

[0003] The purpose of this invention is to provide a support structure for steep slopes in strong earthquake zones to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high and steep slope support structure in a strong earthquake zone, comprising multiple support units arranged laterally along the slope surface. Each support unit includes a set of laterally arranged frame beams and a set of longitudinally arranged rib walls. The lower part of the side wall panels of the rib walls is embedded inside the slope. Multiple partitions are arranged laterally inside the rib walls, dividing the interior of the rib walls into multiple longitudinally distributed cavities. Each cavity is filled with flexible material. The frame beams are laterally fixedly connected above the rib walls, forming a grid-like frame mesh with the rib walls. An energy transfer layer embedded in the slope is provided inside the frame mesh, and the sidewalls of the energy transfer layer are anchored to the inner surface of the frame mesh. The frame beams are anchored to the slope by a first anchor cable.

[0005] Furthermore, an adjustment system is provided at the end of the first anchor cable. The adjustment system includes a hydraulic cylinder, a sensor, and a controller. The hydraulic cylinder is fixedly connected to the frame beam, and the piston of the hydraulic cylinder is fixedly connected to the first anchor cable. The movement direction of the piston is in the same straight line as the tensioning direction of the first anchor cable. Multiple sensors are provided, and the multiple sensors are respectively embedded in the anchoring section of the first anchor cable and the slope and inside the slope. The sensors are connected to the controller through a circuit.

[0006] By setting up a control system, when the sensor detects an earthquake, the controller controls the movement of the hydraulic cylinder piston to adjust the tension of the first anchor cable, thereby achieving flexible energy absorption of the structure and avoiding stress concentration caused by rigid resistance.

[0007] Furthermore, the energy transfer layer is composed of multiple plates spliced ​​together, and an expansion joint is provided in the middle of the energy transfer layer.

[0008] The energy transfer layer is made of spliced ​​plates with expansion joints, which increases the structural flexibility, improves the energy absorption effect, and makes it less susceptible to damage in earthquakes.

[0009] Preferably, the flexible material is silicone sealant or rubber gasket.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention features a flexible ribbed wall structure with a frame beam fixed to it. The frame beam is anchored to the slope via anchor cables with an adjustment system at its ends. During an earthquake, seismic waves induce shallow creep in the slope. The flexible structure of the ribbed wall allows for limited horizontal displacement and absorbs some energy through compression. The frame beam deforms slightly with the slope, transferring stress to the first anchor cable. When the controller detects axial force fluctuations, it adjusts the tension of the first anchor cable via a hydraulic cylinder. This flexible structure absorbs energy, avoiding stress concentration caused by rigid resistance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the high and steep slope support structure in the strong earthquake zone provided by this utility model embodiment;

[0013] Figure 2 This is a schematic diagram of the control system provided in an embodiment of the present invention;

[0014] In the diagram, 1-slope, 2-frame beam, 3-ribbed wall, 4-energy transfer layer, 5-first anchor cable, 31-cavity, 41-expansion joint, 51-control system, 511-hydraulic cylinder, 512-sensor, 513-controller. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1 and Figure 2This utility model provides a technical solution: a high and steep slope support structure in a strong earthquake zone, comprising multiple support units arranged transversely along the slope surface 1. Each support unit includes a set of transversely arranged frame beams 2 and a set of longitudinally arranged rib walls 3. The lower part of the side wall panels of the rib walls 3 is embedded inside the slope 1. Multiple partitions are arranged transversely inside the rib walls 3, dividing the interior of the rib walls 3 into multiple longitudinally distributed cavities 31, and each cavity 31 is filled with silicone sealant. The frame beams 2 are connected transversely to the top of the rib walls 3 by steel cables or bolts, forming a grid-like frame mesh with the rib walls 3. An energy transfer layer 4 is embedded in the slope body inside the frame mesh, and the sidewalls of the energy transfer layer 4 are anchored to the inner side of the frame mesh. The frame beams 2 are anchored to the slope body 1 by first anchor cables 5. The ends of the first anchor cables 5 are provided with... There is a control system 51, which includes a hydraulic cylinder 511, a sensor 512, and a controller 513. The hydraulic cylinder 511 is fixedly connected to the frame beam 2, and the piston of the hydraulic cylinder 511 is fixedly connected to the first anchor cable 5. The direction of piston movement is in the same straight line as the tensioning direction of the first anchor cable 5. The sensor 512 includes a pressure sensor, a strain sensor, and an acceleration sensor. The pressure sensor and the strain sensor are embedded in the frame beam and the anchoring end of the first anchor cable 5. The acceleration sensor is arranged on the surface of the slope 1. The deformation of the slope 1, the tension of the anchor cable, and the acceleration and frequency data of the seismic wave are collected in real time by multiple sensors 512, and the data information is transmitted to the controller 513 through electrical signals. The energy transfer layer 4 is spliced ​​from multiple plates and a deformation joint 41 is provided in the middle of the energy transfer layer 4. The deformation joint 41 is filled with silicone sealant.

[0017] In practical use, when an earthquake occurs, the seismic waves induce shallow creep in the slope 1. The flexible structure of the rib wall 3 allows for limited horizontal displacement and absorbs some energy through compression with silicone sealant. Meanwhile, the frame beam 2 deforms slightly with the slope, transferring stress to the first anchor cable 5. When the sensor 512 detects an earthquake, it adjusts the tension of the first anchor cable 5 by retracting the piston of the hydraulic cylinder 511, thus achieving flexible energy absorption and avoiding stress concentration caused by rigid resistance. The spliced ​​plate wall friction of the energy transfer layer 4 dissipates the seismic wave energy through material damping and intercepts the soil sliding down the slope 1, preventing the slope from collapsing.

[0018] It should be noted that the sensor 512, hydraulic cylinder 511, and controller 513 are all commercially available components. Their specific models and specifications need to be selected based on the actual specifications of the device. The selection calculation method adopts existing technology in this field, so it will not be described in detail here. The power supply and principle of the controller 513 are clear to those skilled in the art, and will not be described in detail here.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A support structure for steep slopes in strong earthquake zones, characterized in that: The system includes multiple support units arranged laterally along the slope surface. Each support unit includes a set of laterally arranged frame beams and a set of longitudinally arranged rib walls. The lower part of the side wall panels of the rib walls is embedded inside the slope. Multiple partitions are arranged laterally inside the rib walls, dividing the interior of the rib walls into multiple longitudinally distributed cavities. Each cavity is filled with flexible material. The frame beams are laterally fixedly connected to the top of the rib walls, forming a grid-like frame mesh with the rib walls. An energy transfer layer is embedded in the slope body inside the frame mesh, and the sidewalls of the energy transfer layer are anchored to the inner surface of the frame mesh. The frame beams are anchored to the slope body by a first anchor cable.

2. The high and steep slope supporting structure in a strong earthquake area according to claim 1, characterized in that: The first anchor cable end is provided with an adjustment system, which includes a hydraulic cylinder, a sensor and a controller. The hydraulic cylinder is fixedly connected to the frame beam, and the piston movable end of the hydraulic cylinder is fixedly connected to the first anchor cable. The movement direction of the piston is in the same straight line as the tensioning direction of the first anchor cable. Multiple sensors are provided, which are respectively embedded in the anchoring section of the first anchor cable and the slope and inside the slope. The sensors are connected to the controller through a circuit.

3. The high and steep slope supporting structure in a strong earthquake area according to claim 1, characterized in that: The energy transfer layer is composed of multiple plates spliced ​​together, and an expansion joint is provided in the middle of the energy transfer layer.

4. The high and steep slope supporting structure in a strong earthquake area according to claim 1, characterized in that: The flexible material is silicone sealant or rubber gasket.

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