High slope support anti-seismic experiment device and experiment method
By designing an adjustable tilt angle high slope support seismic test device, the problem of the narrow applicability of existing devices was solved, and the simulation and sealing effect of diverse high slope steepness were achieved, thus expanding the applicability of the experiment.
Patent Information
- Application Number
- CN202511489521.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-17
- Publication Date
- 2025-12-19
AI Technical Summary
Existing high slope support seismic testing devices cannot simulate diverse steepness ranges, have narrow applicability, and cannot cover the diverse high slope conditions in actual engineering projects.
A seismic test device for high slope support was designed, featuring a bottom surface, a low surface, and a back slope with adjustable tilt angle. Different steepnesses are simulated through hydraulic hinges and telescopic cylinders, and a sealing structure ensures smooth sliding and sealing effect.
It enables the simulation of a diverse range of high slope steepness, expands the applicability of the experiment, and ensures the stability of the device and the observation effect through a sealed structure.
Smart Images
Figure CN121163801A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of high slope support anti-seismic experiment, in particular to a high slope support anti-seismic experiment device and experiment method. BACKGROUND
[0002] The research on the seismic stability of high and steep slopes is one of the important research directions of geotechnical engineering. At present, the experimental data is obtained by making a model of high and steep slopes including its support, simulating various seismic conditions on a shaking table, and then researching the anti-seismic situation of high slope support, so as to guide and improve the construction of high slope experiment.
[0003] In the existing patent, CN113074892A discloses a high slope support anti-seismic experiment device and experiment method to fill the gap of high and steep slope experiment device and method. However, in this experiment device, the bottom surface, low surface and back slope surface of the inner frame have a fixed inclination angle, which can only simulate a slope with a specific steepness, and cannot cover the diversified steepness range of high slopes in actual engineering, so the experiment applicability is narrow. SUMMARY
[0004] The purpose of the present application is to provide a high slope support anti-seismic experiment device and experiment method, which can simulate high slopes with diversified steepness range by setting the bottom surface, low surface and back slope surface with inclination angle adjustment function, and has a wider application range.
[0005] To achieve the above purpose, the present application provides a high slope support anti-seismic experiment device, which comprises an experiment tank with symmetrical openings on the front and back sides and an open top, the experiment tank is installed on a shaking table (locked and connected with the shaking table through bolts), and a simulation frame for containing a high slope soil body model is arranged inside the experiment tank. The simulation frame comprises two observation plates arranged symmetrically at the symmetrical openings, a low surface, a bottom surface and a back slope surface connected in sequence between the two observation plates, the low surface and the back slope surface are located on the two sides of the bottom surface respectively, the low surface and the back slope surface are connected with the experiment tank through an inclination angle adjustment structure, the bottom surface is connected with the experiment tank through a bottom inclination adjustment structure, the connection between the low surface and the bottom surface and the connection between the back slope surface and the bottom surface are both provided with a sealing structure one, and the connection between the low surface and the observation surface and the connection between the back slope surface and the observation surface are both provided with a sealing structure two.
[0006] Preferably, the bottom end of the low surface is hinged to one side of the bottom surface through a hydraulic hinge, the front and back sides of the low surface are slidingly connected with the observation surface, the bottom end of the back slope surface is hinged to the other side of the bottom surface through a hydraulic hinge, and the front and back sides of the back slope surface are slidingly connected with the observation surface.
[0007] Preferably, the sealing structure one comprises a rubber sealing strip sealingly arranged at the joint of the low surface and the bottom surface or the joint of the back slope surface and the bottom surface, one side of the rubber sealing strip is sealingly glued to the low surface or the back slope surface, the other side of the rubber sealing strip is sealingly glued to the bottom surface, and the rubber sealing strip is located above the hydraulic hinge.
[0008] Preferably, the sealing structure two comprises a hard sealing strip, the cross section of the hard sealing strip is arc-shaped, one side of the hard sealing strip (hard plastic material) is sealingly glued to the low surface or the back slope surface, the other side of the hard sealing strip is slidingly connected to the observation surface through a flexible sealing strip, and the other side of the hard sealing strip is slidingly connected to the observation surface through a sliding wheel, the sliding wheel is located at the joint of the low surface and the observation surface or the joint of the back slope surface and the observation surface.
[0009] Preferably, the top end of the hard sealing strip extends above the top end of the low surface or the back slope surface, the rubber sealing strip covers the bottom end of the hard sealing strip and is sealingly glued to the hard sealing strip, and after the two ends of the rubber sealing strip extend out of the joint of the low surface and the bottom surface or the joint of the back slope surface and the bottom surface, the rubber sealing strip is bent and arranged upward along the observation surface and is slidingly connected to the observation surface.
[0010] Preferably, the observation plate is made of transparent tempered glass material.
[0011] Preferably, the inclination angle adjusting structure comprises a plurality of uniformly arranged telescopic cylinders one located between the low surface and the experimental tank and between the back slope surface and the experimental tank, respectively, the bottom end of the telescopic cylinder one is hingedly connected to the inner bottom surface of the experimental tank, and the telescopic rod at the top end of the telescopic cylinder one is hingedly connected to the outer side of the low surface or the outer side of the back slope surface.
[0012] Preferably, the bottom inclination adjusting structure comprises a plurality of rectangular array arranged telescopic cylinders two located below the bottom surface, the bottom end of the telescopic cylinder two is installed on the inner bottom surface of the experimental tank, and the telescopic rod at the top end of the telescopic cylinder two is hingedly connected to the bottom end of the bottom surface.
[0013] The present application provides a high slope support anti-seismic experiment method, which comprises the following steps: Step one, simulation frame bottom surface adjustment: according to the soil model to be simulated, the extension of the telescopic cylinder two is controlled by the control system to drive the inclination of the bottom surface, adjust the inclination angle of the bottom surface, and the telescopic cylinder two is adaptively extended to drive the low surface and the back slope surface to adaptively adjust with the inclination of the bottom surface; Step two, simulation frame side surface adjustment: according to the soil model to be simulated, the extension of the telescopic cylinder one is controlled by the control system to drive the low surface and the back slope surface to rotate, respectively, and adjust the inclination angle of the low surface and the back slope surface; Step three, soil model production and support installation: the required soil model is produced layer by layer and the required support module is installed on the soil model, and various types of monitoring sensors are arranged during the production of the soil model and the installation of the support module. Step four, multi-directional seismic loading and real-time monitoring: select the target seismic wave from the shaking table waveform library, set the loading parameters; start the shaking table, monitor the sensors, and monitor the soil model through a high-speed camera, focusing on capturing the details of soil model crack propagation; Step five, failure mode quantitative analysis and experiment ending: after loading, the shaking table is stopped and left to stand, and the final failure mode of the soil (such as overall sliding or local collapse) is recorded; the DIC system is used to analyze the data recorded by the high-speed camera, outputting the crack propagation path graph, crack width-time curve, and soil displacement cloud chart; the support module and monitoring sensors are removed, and the soil model mechanical parameters (such as internal friction angle and cohesion) are sampled and detected to compare the changes before and after loading; all monitoring data is organized to form a complete load-response-failure data set for high slope support seismic performance evaluation.
[0014] Preferably, in step three, the soil material is prepared in layers (such as surface layer: sandy soil (density 1.8g / cm³), middle layer: silty clay (density 1.9g / cm³), bottom layer: gravel soil (density 2.1g / cm³)), and the thickness of each layer is controlled; The first layer of fill is buried with pore water pressure monitoring sensors and optical fiber monitoring sensors; Install the support module: simulate anchor + lattice beam combined support, first adjust the anchor spacing (such as 15cm) through the long hole, implant the anchor and fix it, then install the lattice beam and bolt it with the anchor; Repeat the above steps until all soil layers and supports are installed.
[0015] Therefore, the high slope support seismic experiment device and experiment method have the following beneficial effects: 1. The low surface and bottom surface, and the back slope surface and bottom surface are adjusted in inclination angle by the hydraulic hinge combined with the telescopic cylinder, and the bottom surface is adjusted in inclination angle by the telescopic cylinder, so that different steepness range high slope simulation is realized, covering the diversified steepness range of high slope in actual engineering, and the experiment applicability is more extensive; 2. The hydraulic hinge is sealed by flexible rubber sealing strips, the rubber sealing strips are extended and attached to the observation surface at both ends, which enhances the sealing effect while not affecting the rotation of the low surface and the back slope surface, the low surface and the back slope surface are connected with the observation surface through arc-shaped hard sealing strips, the hard sealing strips are connected with the observation surface through the flexible sealing strips, and the hard sealing strips are connected with the observation surface through the sliding wheels, which ensures smooth sliding of the low surface and the observation surface, and the back slope surface and the observation surface, and has better sealing effect.
[0016] The technical solutions of the present application will be further described in detail below through the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the overall structure schematic view of the high slope support anti-seismic experimental device embodiment of the present application; Figure 2 It is the front view of the high slope support anti-seismic experimental device embodiment of the present application; Figure 3 It is the sealing structure one structure schematic view of the high slope support anti-seismic experimental device embodiment of the present application; Figure 4 It is the sealing structure two structure schematic view of the high slope support anti-seismic experimental device embodiment of the present application; Figure 5 It is the A place enlarged schematic view of the high slope support anti-seismic experimental device embodiment of the present application; Figure 4 Figure 6 It is the low surface side view of the high slope support anti-seismic experimental device embodiment of the present application; Figure 7 It is the telescopic cylinder one distribution schematic view of the high slope support anti-seismic experimental device embodiment of the present application; Figure 8 It is the telescopic cylinder two distribution schematic view of the high slope support anti-seismic experimental device embodiment of the present application.
[0018] In the figure: 1, experimental tank; 2, vibration table; 3, symmetrical opening; 4, observation plate; 5, low surface; 6, bottom surface; 7, back slope surface; 8, rubber sealing strip; 9, hard sealing strip; 10, sliding wheel; 11, telescopic cylinder one; 12, telescopic cylinder two; 13, flexible sealing strip. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear and understandable, the embodiments of the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present application and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application. The examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout.
[0020] It should be noted that the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or server comprising a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0021] Like numbers and labels refer to like items in all the figures, so once an item is defined in one figure, it should not require further defining or explaining in subsequent figures.
[0022] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0023] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0024] As shown in Figure 1 , Figure 2 , the high slope support anti-seismic experimental device of the present application comprises an experimental tank 1 provided with symmetrical openings 3 on the front and back sides and open at the top, and the experimental tank 1 is installed on a vibration table 2 and is locked and connected with the vibration table 2 through bolts. The experimental tank 1 is made of steel material as a whole, which has the advantages of high strength and convenient customization.
[0025] The inside of the experimental tank 1 is provided with a simulation frame for containing a high slope soil model. The simulation frame comprises two observation plates 4 arranged symmetrically at the symmetrical openings 3. The observation plates 4 are made of transparent tempered glass material, which can clearly observe the inside of the soil model while ensuring the strength.
[0026] A low surface 5, a bottom surface 6 and a back slope surface 7 are sequentially connected between the two observation plates 4, and the low surface 5 and the back slope surface 7 are respectively located on the two sides of the bottom surface 6. The bottom end of the low surface 5 is hinged to one side of the bottom surface 6 through a hydraulic hinge, and the front and rear sides of the low surface 5 are slidingly connected with the observation surface. The bottom end of the back slope surface 7 is hinged to the other side of the bottom surface 6 through a hydraulic hinge, and the front and rear sides of the back slope surface 7 are slidingly connected with the observation surface. The opening and closing of the low surface 5 and the bottom surface 6 and the back slope surface 7 and the bottom surface 6 can be realized through the hydraulic hinge, so as to realize the adjustment of the inclination angle of the low surface 5 and the back slope surface 7.
[0027] The connection between the low surface 5 and the bottom surface 6 and the connection between the back slope surface 7 and the bottom surface 6 are both provided with a sealing structure one. As shown inFigure 3 As shown, the sealing structure includes a rubber sealing strip 8 that is sealed at the junction of the low surface 5 and the bottom surface 6, or at the junction of the back slope surface 7 and the bottom surface 6. One side of the rubber sealing strip 8 is sealed and glued to the low surface 5 or the back slope surface 7, and the other side of the rubber sealing strip 8 is sealed and glued to the bottom surface 6. The rubber sealing strip 8 is located above the hydraulic hinge.
[0028] Sealing structure 2 is installed at the connection between the low-lying surface 5 and the observation surface, and at the connection between the back slope surface 7 and the observation surface. For example... Figure 4 , Figure 5 As shown, the second sealing structure includes a rigid sealing strip 9, which has an arc-shaped cross-section. One side of the rigid sealing strip 9 (made of rigid plastic) is bonded to the low-lying surface 5 or the back slope surface 7 with sealing adhesive, and the other side of the rigid sealing strip 9 is slidably sealed to the observation surface via a flexible sealing strip 13. The other side of the rigid sealing strip 9 is slidably connected to the observation surface via a sliding wheel 10, which is located at the connection between the low-lying surface 5 and the observation surface or the back slope surface 7 and the observation surface, between the sliding wheel 10 and the flexible sealing strip 13.
[0029] like Figure 6 As shown, the top of the rigid sealing strip 9 extends above the top of the low face 5 or the back slope 7, and the rubber sealing strip 8 covers the bottom of the rigid sealing strip 9 and is bonded to the rigid sealing strip 9 with sealant. After both ends of the rubber sealing strip 8 extend from the junction of the low face 5 and the bottom face 6 or the junction of the back slope 7 and the bottom face 6, they are bent upward along the observation surface and fitted to it, and are slidably connected to the observation surface.
[0030] The low-lying surface 5 and the back slope surface 7 are connected to the experimental tank 1 via an adjustable tilt angle structure. For example... Figure 7 As shown, the tilt angle adjustment structure includes several telescopic cylinders 11 evenly arranged between the low surface 5 and the experimental tank 1, and between the back slope surface 7 and the experimental tank 1. The bottom end of the telescopic cylinder 11 is hinged to the inner bottom surface 6 of the experimental tank 1, and the telescopic rod at the top of the telescopic cylinder 11 is hinged to the outer side of the low surface 5 or the outer side of the back slope surface 7.
[0031] The bottom surface 6 is connected to the experimental tank 1 via a bottom tilt adjustment structure. For example... Figure 8 As shown, the bottom tilt adjustment structure includes several telescopic cylinders 12 arranged in a rectangular array below the bottom surface 6. The bottom end of the telescopic cylinders 12 is installed on the inner bottom surface 6 of the experimental tank 1, and the telescopic rod at the top of the telescopic cylinders 12 is hinged to the bottom end of the bottom surface 6.
[0032] The seismic test method for high slope support according to the present invention includes the following steps: Step 1, Adjustment of the bottom surface 6 of the simulated frame: Based on the soil model to be simulated, the telescopic cylinder 12 is controlled by the existing control system to tilt the bottom surface 6 and adjust the tilt angle of the bottom surface 6. During the adjustment, the telescopic cylinder 12 adaptively extends and retracts, causing the low surface 5 and the back slope surface 7 to adjust adaptively with the tilt of the bottom surface 6.
[0033] Step 2, Simulation of frame side adjustment: Based on the soil model to be simulated, the telescopic cylinder 11 is controlled by the control system to extend and retract, thereby driving the low face 5 and the back slope 7 to rotate and adjusting the tilt angle of the low face 5 and the back slope 7.
[0034] Step 3, Soil Model Fabrication and Support Installation: The required soil model is fabricated in layers, and the required support modules are installed on the soil model. Various types of monitoring sensors are deployed during the soil model fabrication and support module installation process.
[0035] In step three, prepare soil materials in layers (e.g., top layer: sandy soil (density 1.8g / cm³), middle layer: silty clay (density 1.9g / cm³), bottom layer: gravelly soil (density 2.1g / cm³)), with each layer controlled to be 5-10cm thick; First layer of fill: Fill with bottom layer of crushed stone soil, compact it with a small compactor (compaction degree ≥90%), and bury pore water pressure monitoring sensors and fiber optic monitoring sensors; Installation of support module: Simulate the combination of anchor bolts and lattice beams for support. First, adjust the anchor bolt spacing (e.g., 15cm) through the elongated holes, insert and fix the anchor bolts, and then install the lattice beams and connect them with the anchor bolt bolts. Repeat the above steps until all soil layers and support installations are completed.
[0036] Step 4, Multi-directional seismic loading and real-time monitoring: Select the target seismic wave from the waveform library of shaking table 2 and set the loading parameters; start shaking table 2 and monitoring sensors simultaneously, and monitor the soil model through a high-speed camera, focusing on capturing the details of crack propagation in the soil model.
[0037] Step 5, Quantitative Analysis of Failure Modes and Experimental Conclusion: After loading, the shaking table 2 is stopped and left to stand still, and the final failure mode of the soil (such as overall sliding or local collapse) is recorded; the data recorded by the high-speed camera is analyzed using the existing DIC system to output crack propagation path diagram, crack width-time curve, and soil displacement cloud map; the support module and monitoring sensors are removed, and the mechanical parameters of the soil model (such as internal friction angle and cohesion) are sampled and tested to compare the changes before and after loading; all monitoring data are organized to form a complete load-response-failure dataset for the seismic performance evaluation of high slope support.
[0038] It should be pointed out finally that the above examples are only used to illustrate the technical solutions of the present application but not to limit it, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can still be modified or replaced equivalently, and these modifications or equivalent replacements should not make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present application.
Claims
1. A seismic testing device for high slope support, characterized in that: The test chamber includes a test tank with symmetrical openings on the front and back sides and an open top. The test tank is installed on a vibration table and has a simulation frame inside for holding the high slope soil model. The simulation frame includes two symmetrically arranged observation plates at a symmetrical opening. Between the two observation plates are a low surface, a bottom surface, and a back slope surface connected in sequence. The low surface and the back slope surface are located on both sides of the bottom surface. The low surface and the back slope surface are connected to the experimental tank through an tilt angle adjustment structure. The bottom surface is connected to the experimental tank through a bottom tilt adjustment structure. A sealing structure I is provided at the connection between the low surface and the bottom surface, and at the connection between the back slope surface and the bottom surface. A sealing structure II is provided at the connection between the low surface and the observation surface, and at the connection between the back slope surface and the observation surface.
2. The high slope support seismic test device according to claim 1, characterized in that: The bottom end of the low-profile surface is hinged to one side of the bottom surface via a hydraulic hinge, and the front and rear sides of the low-profile surface are slidably connected to the observation surface. The bottom end of the back slope surface is hinged to the other side of the bottom surface via a hydraulic hinge, and the front and rear sides of the back slope surface are slidably connected to the observation surface.
3. The high slope support seismic test device according to claim 2, characterized in that: The sealing structure includes a rubber sealing strip that is installed at the junction of the low surface and the bottom surface, or at the junction of the back slope and the bottom surface. One side of the rubber sealing strip is bonded to the low surface or the back slope with sealing adhesive, and the other side of the rubber sealing strip is bonded to the bottom surface with sealing adhesive. The rubber sealing strip is located above the hydraulic hinge.
4. The high slope support seismic test device according to claim 3, characterized in that: The second sealing structure includes a rigid sealing strip with an arc-shaped cross-section. One side of the rigid sealing strip is bonded to the low-lying surface or the back slope surface with sealing adhesive. The other side of the rigid sealing strip is slidably sealed to the observation surface through a flexible sealing strip. The other side of the rigid sealing strip is slidably connected to the observation surface through a sliding wheel. The sliding wheel is located at the connection between the low-lying surface and the observation surface or the connection between the back slope surface and the observation surface, between the sliding wheel and the flexible sealing strip.
5. The high slope support seismic test device according to claim 4, characterized in that: The top of the rigid sealing strip extends above the top of the low face or the back slope face. The rubber sealing strip covers the bottom of the rigid sealing strip and is bonded to the rigid sealing strip with sealing adhesive. The two ends of the rubber sealing strip extend from the low face and the bottom face connection point or the back slope face and the bottom face connection point, and then bend upward along the observation surface and slide to connect with the observation surface.
6. The high slope support seismic test device according to claim 1, characterized in that: The observation panel is made of transparent tempered glass.
7. The high slope support seismic test device according to claim 1, characterized in that: The tilt angle adjustment structure includes several telescopic cylinders that are evenly arranged between the low surface and the experimental tank, and between the back slope and the experimental tank. The bottom end of the telescopic cylinder is hinged to the inner bottom surface of the experimental tank, and the telescopic rod at the top of the telescopic cylinder is hinged to the outer side of the low surface or the outer side of the back slope.
8. The high slope support seismic test device according to claim 1, characterized in that: The bottom tilt adjustment structure includes several telescopic cylinders arranged in a rectangular array below the bottom surface. The bottom end of the telescopic cylinder is installed on the inner bottom surface of the experimental tank, and the telescopic rod at the top of the telescopic cylinder is hinged to the bottom end of the bottom surface.
9. A seismic testing method for high slope support, employing the seismic testing apparatus for high slope support as described in any one of claims 1-8, characterized in that: Includes the following steps: Step 1, Simulate the adjustment of the bottom surface of the frame: According to the soil model to be simulated, the telescopic cylinder 2 is controlled by the control system to tilt the bottom surface and adjust the tilt angle of the bottom surface. During the adjustment, the telescopic cylinder 2 adaptively extends and retracts, causing the low surface and back slope to adjust adaptively with the tilt of the bottom surface. Step 2, Simulation of frame side adjustment: Based on the soil model to be simulated, the telescopic cylinder 1 is controlled by the control system to rotate the low face and the back slope respectively, and the tilt angle of the low face and the back slope is adjusted. Step 3, Soil Model Fabrication and Support Installation: The required soil model is fabricated in layers and the required support modules are installed on the soil model. Various types of monitoring sensors are deployed during the soil model fabrication and support module installation process. Step 4, Multi-directional seismic loading and real-time monitoring: Select the target seismic wave from the shaking table waveform library and set the loading parameters; start the shaking table and monitoring sensors simultaneously, and monitor the soil model through a high-speed camera, focusing on capturing the details of crack propagation in the soil model; Step 5, Quantitative analysis of failure modes and experimental conclusion: After loading, the shaking table is stopped and left to stand still, and the final failure mode of the soil is recorded. The DIC system is used to analyze data recorded by high-speed cameras, outputting crack propagation path diagrams, crack width-time curves, and soil displacement cloud maps; the support modules and monitoring sensors are removed, and the mechanical parameters of the soil model are sampled and tested to compare changes before and after loading; all monitoring data are compiled to form a complete load-response-failure dataset for seismic performance evaluation of high slope support.
10. The seismic test method for high slope support according to claim 9, characterized in that: In step three, the soil material is prepared in layers, and the thickness of each layer is controlled; The first layer of backfill is used to bury pore water pressure monitoring sensors and fiber optic monitoring sensors. Installation of support module: Simulates anchor bolt + lattice beam combined support. First, adjust the anchor bolt spacing through the long strip hole, insert the anchor bolt and fix it, and then install the lattice beam and connect it with the anchor bolt bolt. Repeat the above steps until all soil layers and support installations are completed.