Landslide emergency rescue system capable of rapidly reducing secondary collapse risk

Abstract

The invention discloses a landslide emergency rescue system capable of rapidly reducing the secondary collapse risk. The landslide emergency rescue system comprises a temporary slope protection unit, an auxiliary operation unit, a grouting unit and a centralized electric control unit. The temporary slope protection unit comprises a plurality of modularized anchor net modules, multi-stage self-drilling type hollow grouting pipes are arranged on network nodes of every two adjacent grids of the anchor net modules, and frame magnetic coupling devices are arranged on the network nodes located on outer frames of the anchor net modules. The auxiliary operation unit comprises an unmanned aerial vehicle set, and a laser radar scanning assembly and a hoisting assembly which can be detachably connected with the unmanned aerial vehicle set; the grouting unit comprises a slurry containing box with a grouting pump, and rapid-hardening composite slurry is contained in the slurry containing box; the centralized electric control unit comprises a central control machine. According to the landslide emergency rescue system capable of rapidly reducing the secondary collapse risk, rapid erection and adjustable adaptation of a temporary slope protection can be achieved, then the risks of secondary collapse and local slippage are effectively reduced in a complex environment and urgent time, and the safety and efficiency of emergency rescue are improved.

Description

Technical Field

[0001] This invention relates to an emergency rescue system, specifically a landslide emergency rescue system suitable for rapidly reducing the risk of secondary collapse in landslide disasters, belonging to the field of emergency rescue technology. Background Technology

[0002] In scenarios such as steep slopes, areas experiencing heavy rainfall, freeze-thaw zones, and earthquake-affected areas, slopes are highly susceptible to instability and landslides due to the combined effects of rainfall infiltration, ground motion, and excavation disturbance. The resulting loose deposits are difficult to stabilize in the short term. During landslide rescue and emergency response, operations such as clearing obstacles, search and rescue, drainage, and reinforcement must be carried out near the unstable slope. Mechanical vibrations, personnel entering the area, and rain re-infiltration can all potentially trigger secondary collapses, directly threatening the lives of rescue personnel and affected residents. Furthermore, these operations restrict equipment delivery, access opening, and casualty evacuation, significantly increasing the uncertainty and complexity of emergency rescue efforts.

[0003] Existing slope stabilization technologies primarily address routine and long-term stability needs, including shotcrete with anchor bolts (cables), lattice beams, soil nailing walls, anti-slide piles, retaining walls, micropiles, and integrated drainage systems. These technologies typically rely on detailed site surveys and relatively complete construction procedures, requiring stable work surfaces, complete sets of equipment, and long construction periods. This makes them unsuitable for meeting the emergency safety requirements of "rapid entry, rapid response, and rapid evacuation" after disasters. Furthermore, once these rigid structures are completed, adjustments and removal are difficult, making them unsuitable for temporary and mobile emergency rescue scenarios.

[0004] For temporary slope protection during landslide emergency rescue, simple structures such as sandbags, steel pipe supports, temporary retaining walls, passive protective nets, and engineered piles are commonly used. These structures have the following common problems: ① Insufficient adaptability, making it difficult to quickly fit complex slopes and irregular accumulations; ② Low degree of standardization and modularization, resulting in low efficiency in transportation, hoisting, and rapid assembly; ③ Limited anti-sliding, anti-erosion, and energy dissipation performance under the influence of rainwater re-infiltration and vibration; ④ Insufficient coordination with measures such as drainage and unloading, limiting the overall risk reduction effect.

[0005] Regarding the transportation of equipment and personnel during landslide emergency rescue, methods such as manual carrying, rope climbing, temporary ladders, and simple cableways (pulley blocks) are commonly used. These methods have problems such as limited access capacity, insufficient ability to cross dangerous sections, low efficiency, and poor safety. Large machinery is difficult to approach the work site, and the transfer of materials and injured people uphill and downhill is often restricted by terrain and the risk of secondary disasters.

[0006] While technologies such as total station displacement monitoring, inclinometers and crack gauges, borehole inclinometers, rainfall and pore pressure sensors, ground-based synthetic aperture radar, and microseismic / acoustic emission have been widely used for monitoring and early warning during landslide emergency rescue, they still suffer from drawbacks such as long deployment time, scattered data, and difficulty in linking with on-site operations under emergency conditions. Threshold settings and early warning strategies are mostly general solutions, which are difficult to dynamically adapt to changes in unloading, reinforcement, and rainfall during the treatment process, and it is difficult to form a closed loop of "monitoring-assessment-treatment-reassessment".

[0007] In summary, existing technologies lack systematic coordination among the three key links of "temporary slope protection", "equipment and personnel transportation", and "real-time monitoring and early warning": the slope protection system and transportation route are mutually restrictive, the monitoring system and operation process are disconnected, and energy and communication support are scattered, making it difficult to simultaneously ensure the efficiency of emergency rescue and the safety of operation, and making it difficult to detect and proactively control the risk of secondary disasters such as secondary collapses in a timely manner. Summary of the Invention

[0008] To address the problems existing in the prior art, this invention provides a landslide emergency rescue system that can rapidly reduce the risk of secondary collapse. It enables the rapid construction and adjustable adaptation of temporary slope protection, thereby effectively reducing the risk of secondary collapse and local sliding in complex environments and under tight time constraints, and improving the safety and efficiency of rescue operations.

[0009] To achieve the above objectives, this landslide emergency rescue system for rapidly reducing the risk of secondary collapse includes a temporary slope protection unit, an auxiliary operation unit, a grouting unit, and a centralized electrical control unit.

[0010] The temporary slope protection unit comprises multiple modular anchor mesh modules. Each anchor mesh module has a regular polygonal mesh structure, with multiple intersecting flexible warp and weft lines forming a grid. Each adjacent grid node is equipped with a multi-stage self-drilling hollow grouting pipe. Along the drilling direction, the multi-stage self-drilling hollow grouting pipe sequentially includes a base, a hollow telescopic sleeve, and a hollow drill bit. The base is fixedly connected to the grid node. The multi-stage self-drilling hollow grouting pipe also contains a drilling mechanism that is connected to the hollow telescopic sleeve and the hollow drill bit for transmission. The drive motor, the inner cavity of the hollow telescopic sleeve, and the inner cavity of the hollow drill bit together form the grouting channel of the multi-stage self-drilling hollow grouting pipe. The grouting channel extends to the outside of the multi-stage self-drilling hollow grouting pipe, and the input end of the grouting channel is equipped with a quick-connect grouting connector I with a grouting magnetic coupling device. The hollow drill bit is equipped with a grout outlet communicating with its inner cavity. The network nodes located on the regular polygonal outer frame are equipped with a frame magnetic coupling device, which includes a quick magnetic coupling connector that is matched and plugged in.

[0011] The auxiliary operation unit includes a drone group and a lidar scanning component and a hoisting component that can be detached and connected to the drone group. The drone group is equipped with a pattern recognition sensor, and the hoisting component includes a quick-lifting connector.

[0012] The grouting unit includes a grouting tank with a grouting pump, and the grouting tank contains a fast-setting composite grout. The grouting tank also includes a grouting hose. The output end of the grouting hose is also equipped with a quick-connect grouting connector II with a grouting magnetic coupling device, and the magnetic poles of the grouting magnetic coupling device of the quick-connect grouting connector II and the quick-connect grouting connector I are engaged.

[0013] The centralized electrical control unit includes a central control unit, which is electrically connected to the drilling drive motor of the multi-stage self-drilling hollow grouting pipe, the grouting pump of the grouting unit, the unmanned aerial vehicle (UAV) unit of the auxiliary operation unit, the pattern recognition sensor, and the lidar scanning component.

[0014] As a further improvement of the present invention, the base of the multi-stage self-drilling hollow grouting pipe is provided with a pressure bearing plate at the top, and the pressure bearing plate is installed and connected to the top of the base through a ball joint structure.

[0015] As a further improvement of the present invention, the flexible warp and flexible weft of the anchor mesh module are flexible warp hoses and flexible weft hoses with hollow cavities. The hollow inner cavities of the flexible warp hoses and flexible weft hoses are connected at the network node positions of the grid to form an overall grouting channel. The grouting channel of the multi-stage self-drilling hollow grouting pipe is connected to the overall grouting channel. The frame magnetic coupling device on the network node located on the regular polygonal outer frame is equipped with a one-way valve II that can be opened and closed in one direction. When the anchor mesh module is not spliced ​​and connected to another adjacent anchor mesh module through the frame magnetic coupling device, the one-way valve II is in the closed state. When the anchor mesh module is spliced ​​and connected to another adjacent anchor mesh module through the frame magnetic coupling device, the one-way valve II is in the open state.

[0016] As a further improvement of the present invention, a quick-connect grouting joint I with a grouting magnetic coupling device is set at a certain network node position of the anchor network module, and a one-way valve I that can be opened and closed in one direction is provided in the quick-connect grouting joint I. When the quick-connect grouting joint II is not connected to the quick-connect grouting joint I through the grouting magnetic coupling device, the one-way valve I is in the closed state. When the quick-connect grouting joint II is connected to the quick-connect grouting joint I through the grouting magnetic coupling device, the one-way valve I is in the open state, and grouting is performed through the quick-connect grouting joint I of a certain anchor network module, so as to realize the simultaneous grouting of the already deployed anchor network module.

[0017] As a further improvement of the present invention, the multi-stage self-drilling hollow grouting pipe is equipped with a monitoring sensor, a power module and a wireless transceiver module, and the wireless transceiver module is wirelessly connected to the central control unit.

[0018] In one embodiment of the present invention, the drilling drive motor is a hollow shaft motor with a hollow inner cavity. A central screw, which is driven by the hollow shaft motor, is connected to a hollow telescopic sleeve via a threaded connection. The central screw also has a hollow inner cavity. The hollow telescopic sleeve includes a base section, a telescopic section, a connecting disc, and a transmission sleeve. The base section and the telescopic section are sequentially fitted and connected, with axial sliding and radial positioning between them. The base section is fixedly installed on the base of a multi-stage self-drilling hollow grouting pipe, and the central screw is coaxially and rollingly mounted on the base section. The connecting disc is coaxially and fixedly mounted on the inner side of the telescopic section. The end of the connecting plate is threadedly connected to the central screw. The transmission sleeve is coaxially sleeved on the central screw and radially positioned to the central screw. The transmission sleeve and the connecting plate are axially positioned and rolled together for installation. The drilling drive motor is a hollow shaft motor with a hollow inner cavity and is fixedly installed on the outer end of the expansion joint. One end of the hollow shaft motor is connected to the hollow drill bit and the other end is connected to the transmission sleeve. The hollow inner cavity of the hollow shaft motor, the hollow inner cavity of the central screw, the inner cavity of the transmission sleeve, and the inner cavity of the hollow drill bit together form the grouting channel of the multi-stage self-drilling hollow grouting pipe.

[0019] As a further improvement of the present invention, the expansion joint includes multiple sub-expansion joints that are sequentially sleeved, and the multiple sub-expansion joints are axially sliding and radially positioned. Each sub-expansion joint has a connecting plate and a transmission sleeve on its inner end. The connecting plate of the inner sub-expansion joint is threadedly connected to the transmission sleeve of the outer sub-expansion joint. The transmission sleeve of the inner sub-expansion joint is sleeved on the transmission sleeve of the outer sub-expansion joint, and the transmission sleeve of the inner sub-expansion joint is radially positioned and connected to the transmission sleeve of the outer sub-expansion joint. The transmission sleeve of each sub-expansion joint is axially positioned and rolledly connected to its corresponding connecting plate. The hollow shaft motor is fixedly installed on the outer end of the innermost sub-expansion joint. The expansion joint also includes a spline sleeve, and the hollow shaft motor is spline-connected to the transmission sleeve of the innermost sub-expansion joint through the spline sleeve.

[0020] As a preferred embodiment of the present invention, the drilling drive motors of all multi-stage self-drilling hollow grouting pipes on the anchor mesh module are electrically connected through the module wires. The module wires are provided with a quick electrode connection terminal I with an electromagnetic force coupling device. One end of the main power supply wire is provided with a quick electrode connection terminal II with an electromagnetic force coupling device, and the other end is connected to the power supply.

[0021] Compared with existing technologies, this landslide emergency rescue system for rapidly reducing the risk of secondary collapse has the following beneficial effects: Because the modular anchor mesh module includes a frame magnetic coupling device 1, the rapid deployment and automatic splicing of the anchor mesh module can be achieved through the coordinated operation of multiple drone teams. Because the modular anchor mesh module includes multi-stage self-drilling hollow grouting pipes 3, the initial positioning of the deployed anchor mesh module can be achieved. Furthermore, by injecting quick-setting composite grout into the landslide body through the multi-stage self-drilling hollow grouting pipes 3, the anchor mesh surface, grouting pipes, and grouting body can form a composite force system of "surface support + internal consolidation." This system can provide continuous surface pressure and tensile constraints between anchor points, thereby significantly improving interfacial friction and slope shear strength. This enables rapid and effective reduction of the risk of secondary collapse and local sliding in complex environments and under tight time constraints, improving the safety and efficiency of rescue operations. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the anchor net module of the present invention deployed on the landslide body;

[0023] Figure 2 This is a side view of the anchor net module of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the multi-stage self-drilling hollow grouting pipe of the present invention;

[0025] Figure 4 This is a schematic diagram of the multi-stage self-drilling hollow grouting pipe of the spiral telescopic control structure of the present invention;

[0026] Figure 5 yes Figure 4 A cross-sectional view.

[0027] In the figure: 1. Frame magnetic coupling device, 2. Flexible warp and flexible weft, 3. Multi-stage self-drilling hollow grouting pipe, 31. Drilling drive motor, 4. Hollow drill bit, 5. Hollow telescopic sleeve, 6. Monitoring sensor, 7. Grouting channel, 8. Pressure bearing plate. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] This landslide emergency rescue system, designed to rapidly reduce the risk of secondary collapse, includes a temporary slope protection unit, an auxiliary operation unit, a grouting unit, and a centralized electrical control unit.

[0030] The temporary slope protection unit comprises multiple modular anchor mesh modules, such as... Figure 1 , Figure 2As shown, the anchor mesh module is a regular polygonal mesh structure. Multiple intersecting flexible warp and weft threads 2 form a mesh structure. Each adjacent mesh node is equipped with a multi-stage self-drilling hollow grouting pipe 3. Figure 3 , Figure 4 As shown, the multi-stage self-drilling hollow grouting pipe 3 includes, along the drilling direction, a base, a hollow telescopic sleeve 5, and a hollow drill bit 4. The base is fixedly connected to the network node. The multi-stage self-drilling hollow grouting pipe 3 also contains a drilling drive motor 31 that is connected to the hollow telescopic sleeve 5 and the hollow drill bit 4. By controlling the rotation of the drilling drive motor 31, the extension of the hollow telescopic sleeve 5 and the rotation of the hollow drill bit 4 can be achieved. The hollow drill bit 4 is a self-tapping drill bit structure with a self-tapping tip and self-tapping threads, similar to a self-tapping screw. The inner cavity of the hollow telescopic sleeve 5 and the hollow drill bit... The inner cavity of 4 together forms the grouting channel 7 of the multi-stage self-drilling hollow grouting pipe 3. The grouting channel 7 extends to the outside of the multi-stage self-drilling hollow grouting pipe 3, and the input end of the grouting channel 7 is provided with a quick-connect grouting connector I with a grouting magnetic coupling device. The hollow drill bit 4 is provided with a grout outlet communicating with its inner cavity. The network node located on the regular polygonal outer frame is provided with a frame magnetic coupling device 1. The frame magnetic coupling device 1 includes a quick magnetic coupling connector that is matched and inserted. Multiple modular anchor mesh modules can be spliced ​​and connected through the frame magnetic coupling device 1.

[0031] The auxiliary operation unit includes a drone group and a lidar scanning component and a hoisting component that can be detached and connected to the drone group. The drone group is equipped with a pattern recognition sensor, and the hoisting component includes a quick-lifting connector.

[0032] The grouting unit includes a grouting tank with a grouting pump, and the grouting tank contains a fast-setting composite grout with properties of rapid setting, early strength, impermeability and corrosion resistance. The grouting tank also includes a grout delivery hose, and the output end of the grout delivery hose is also equipped with a grouting quick-connect joint II with a grouting magnetic coupling device. The magnetic poles of the grouting quick-connect joint II and the grouting magnetic coupling device of the grouting quick-connect joint I are matched.

[0033] The centralized electrical control unit includes a central control unit, which is electrically connected to the drilling drive motor 31 of the multi-stage self-drilling hollow grouting pipe 3, the grouting pump of the grouting unit, the unmanned aerial vehicle group of the auxiliary operation unit, the pattern recognition sensor and the lidar scanning component.

[0034] When using this landslide emergency rescue system to rapidly reduce the risk of secondary collapse, the specific steps include:

[0035] Step 1, Disaster Assessment and Planning: After the slope collapses, a drone team equipped with a lidar scanning component is immediately used to quickly acquire the three-dimensional shape, volume, and surface crack distribution characteristics of the landslide body. The central control unit constructs a high-precision digital elevation model based on the scanning results of the lidar scanning component and accurately locates the boundary of the unstable area. Based on the data such as the coverage area and geometric shape of the landslide body in the digital elevation model, the deployment range, quantity, and path of the anchor net modules are planned.

[0036] Step 2, Anchor Net Module Deployment and Self-Drilling Positioning: The central control unit controls multiple drone teams to work collaboratively to deploy the anchor net modules. The central control unit precisely controls the flight position and altitude of the drone teams based on feedback from pattern recognition sensors on the drone teams. Within the planned anchor net module deployment area, the central control unit controls the drone teams equipped with hoisting components to deploy the anchor net modules sequentially. The edges of adjacent anchor net modules are automatically magnetically coupled during deployment via the edge magnetic coupling device 1. During the sequential deployment of the anchor net modules, the central control unit controls... The drilling drive motor 31 of the multi-stage self-drilling hollow grouting pipe 3, which has been installed as an anchor mesh module, is activated, causing the hollow drill bit 4 of the multi-stage self-drilling hollow grouting pipe 3 to rotate and extend at the same time. Since the landslide body is relatively loose and the entire anchor mesh module has a certain weight, the weight of the entire anchor mesh module can apply a certain force in the axial direction of the multi-stage self-drilling hollow grouting pipe 3 during the process of the hollow drill bit 4 rotating and extending. The hollow drill bit 4 can drill into the landslide body through the self-tapping tip and self-tapping thread to achieve the initial positioning of the installed anchor mesh module.

[0037] During the deployment process, the anchor mesh modules can be hoisted and stacked one by one: multiple drone teams grab the first anchor mesh module through the quick-lifting connector of the hoisting component and send it to the set position on the deployment path. After the first anchor mesh module is laid flat on the landslide surface at the set position, the central control unit controls the quick-lifting connector of the hoisting component of the multiple drone teams to release the first anchor mesh module. Then, the central control unit controls the multiple drone teams to return and grab the second anchor mesh module and send it to the set position on the deployment path adjacent to the first anchor mesh module. The central control unit controls the multiple drone teams to accurately position the frame position of the second anchor mesh module to be accurately aligned with the frame position of the first anchor mesh module. The frame position of the second anchor mesh module and the frame position of the first anchor mesh module are automatically magnetically coupled and connected through the frame magnetic coupling device 1. This process is repeated to achieve the deployment and automatic splicing of all anchor mesh modules.

[0038] During deployment, multiple anchor net modules can also be hoisted simultaneously and stacked sequentially: multiple drone groups hoisting one anchor net module constitute a batch of drones. The central control unit controls multiple batches of drones to simultaneously grab the anchor net module and send it to the set position on the deployment path. The central control unit controls the first batch of drones to lay the first anchor net module flat on the set position on the landslide surface and then return. The returning first batch of drones grabs the anchor net module and sends it to stand by in the air above the deployment path. The central control unit controls the second batch of drones to accurately position the frame position of the second anchor net module so that the frame position of the second anchor net module is accurately aligned with the frame position of the first anchor net module. The frame position of the second anchor net module and the frame position of the first anchor net module are automatically magnetically coupled and connected through the frame magnetic coupling device 1. The central control unit controls the second batch of drones to return. The returning second batch of drones grabs the anchor net module and sends it to stand by in the air above the deployment path. This process is repeated to achieve uninterrupted deployment and automatic splicing of all anchor net modules.

[0039] Step 3, Grouting and Anchoring: During the installation of the anchor mesh modules, the central control unit controls multiple drones to work together for grouting. The central control unit controls the drones equipped with hoisting components to deliver the grout container to the designated position above the installed anchor mesh modules. By precisely controlling the flight position and altitude of the drones, the quick-connect joint II of the grout delivery hose and the quick-connect joint I of the grouting channel 7 are securely connected through the grouting magnetic coupling device. Then, the central control unit controls the grouting pump to pump the grout, achieving rapid setting and bonding. The grout can be pumped into the landslide body through the grout delivery hose, grouting channel 7 and the grout outlet of the hollow drill bit 4 under the action of pumping pressure. The quick-setting composite grout seeps into the soil fissures around the hollow drill bit 4 and initially sets in a short time to reinforce the loose structure of the soil, achieving temporary and rapid consolidation and stabilizing the landslide body. When the grouting reaches the set time or the pumping pressure rises to the set value, the pumping is stopped. The central control unit controls the drone unit to lift the grout tank and disconnect the quick-connect grouting joint II of the grout delivery hose from the quick-connect grouting joint I of the grouting channel 7.

[0040] Step 4, Emergency Rescue: After all anchor mesh modules are deployed and grouting is completed, the landslide body will be in a relatively stable state through the anchor mesh modules. Emergency rescue robots can then be used for rescue operations. These robots can be biomimetic emergency rescue robots with multiple robotic arms on their chassis. The robots can move or locate themselves on the landslide body by clamping or releasing the longitudinal and / or latitude lines of the anchor mesh modules using their robotic arms. By setting up life detectors and a pathfinding system, the robots can perform omnidirectional detection on the landslide body. If a life signal is detected at a location under the landslide, the robot can use its robotic arms to first disconnect the magnetic coupling between the anchor mesh module above the location of the life signal and other surrounding anchor mesh modules, and then perform targeted excavation within a localized area.

[0041] To facilitate the smooth drilling of the multi-stage self-drilling hollow grouting pipe 3 into the landslide body, as a further improvement of the present invention, a pressure-bearing plate 8 is provided at the top of the base of the multi-stage self-drilling hollow grouting pipe 3, and the pressure-bearing plate 8 is connected to the top of the base through a ball joint structure; in Step 2, before the central control unit controls the drilling drive motor 31 of the multi-stage self-drilling hollow grouting pipe 3 of the deployed anchor mesh module to operate, the central control unit first controls the UAV group carrying the hoisting component to send the grout container to the set position above the deployed anchor mesh module, and then precisely controls the flight position and flight altitude of the UAV group to make the grout container hover and press against the pressure-bearing plate 8. The bottom plane of the grout container can press against multiple network sections at the same time. The pressure pad 8 of the multi-stage self-drilling hollow grouting pipe 3 at the point is self-adjusted and abuts against the bottom plate of the grouting box during the pressing process. The grouting box can then apply static pressure in the axial direction to the multi-stage self-drilling hollow grouting pipe 3. Then, the central control unit controls the drilling drive motor 31 of the multi-stage self-drilling hollow grouting pipe 3 of the already deployed anchor mesh module to operate. The hollow drill bit 4 can then steadily drill into the landslide body through the self-tapping tip and self-tapping thread. After the hollow telescopic sleeve 5 of the multi-stage self-drilling hollow grouting pipe 3 is fully extended, the drilling drive motor 31 is stopped. The central control unit controls the UAV group to lift the grouting box to the set position above the already deployed anchor mesh module and wait for operation.

[0042] To simultaneously grout the deployed anchor mesh modules and improve emergency response efficiency, as a further improvement of this invention, the flexible warp and weft threads 2 of the anchor mesh module are flexible warp hoses and flexible weft hoses with hollow cavities. The hollow cavities of the flexible warp hoses and flexible weft hoses are connected at the network node positions of the grid to form an overall grouting channel. Furthermore, the grouting channel 7 of the multi-stage self-drilling hollow grouting pipe 3 is connected to the overall grouting channel. A one-way valve II is installed in the frame magnetic coupling device 1 located on the grid node of the regular polygonal shape. When the anchor mesh module is not connected to an adjacent anchor mesh module through the frame magnetic coupling device 1, the one-way valve II is closed, meaning the overall grouting channel of the anchor mesh module is disconnected from the overall grouting channel of the adjacent anchor mesh module, and the rapid-setting composite grout will not leak out from the network node positions during grouting. When the anchor mesh module is connected to an adjacent anchor mesh module through the frame magnetic coupling device 1, the one-way valve II is open. The overall grouting channel of the anchor mesh module is connected to the overall grouting channel of an adjacent anchor mesh module. During grouting, the quick-setting composite grout can enter the overall grouting channel of the other anchor mesh module through the network node. The quick-connect grouting joint I with a grouting magnetic coupling device is set at a certain network node of the anchor mesh module, and the quick-connect grouting joint I is equipped with a one-way valve I that can be opened and closed in one direction. When the quick-connect grouting joint II is not connected to the quick-connect grouting joint I through the grouting magnetic coupling device, the one-way valve I is in the closed state. When the quick-connect grouting joint II is connected to the quick-connect grouting joint I through the grouting magnetic coupling device, the one-way valve I is in the open state. That is, after the anchor mesh module is spliced ​​and connected to another adjacent anchor mesh module, the overall grouting channel of the anchor mesh module is connected to the overall grouting channel of the other adjacent anchor mesh module. When grouting is performed through the quick-connect grouting joint I of one anchor mesh module, the quick-setting composite grout will not leak out from the quick-connect grouting joint I of the other anchor mesh module. With this setup, grouting can be performed on all existing anchor mesh modules simultaneously by using the quick-connect grouting joint I of one of the anchor mesh modules.

[0043] To achieve better grouting and anchoring effects, as a further improvement of this invention, the multi-stage self-drilling hollow grouting pipe 3 is equipped with a monitoring sensor 6, a power module, and a wireless transceiver module. The monitoring sensor 6 may include a displacement sensor, an acceleration sensor, a pressure sensor, a temperature and humidity sensor, etc. During the drilling and grouting process of the multi-stage self-drilling hollow grouting pipe 3, the monitoring sensor 6 can transmit monitoring data to the central control unit in real time via the wireless transceiver module. The central control unit can automatically adjust the drilling speed or grouting pressure based on the feedback from the monitoring sensor 6 to ensure the anchoring depth and stability.

[0044] As one embodiment of the multi-stage self-drilling hollow grouting pipe 3 of the present invention, the multi-stage self-drilling hollow grouting pipe 3 has a spiral telescopic control structure, such as... Figure 4 As shown, the central screw 32 is threadedly connected to the hollow telescopic sleeve 5. The central screw 32 also has a hollow inner cavity. The hollow telescopic sleeve 5 includes a base section 51, a telescopic section 52, a connecting disc 53, and a transmission sleeve 54. The base section 51 and the telescopic section 52 are sequentially fitted and connected, and the base section 51 and the telescopic section 52 are axially sliding and radially positioned. The base section 51 is fixedly installed and connected to the base of the multi-stage self-drilling hollow grouting pipe 3, and the central screw 32 is coaxially and rollingly installed on the base section 51. The connecting disc 53 is coaxially and fixedly installed on the inner end of the telescopic section 52, and the connecting disc 53 is threadedly connected to the central screw 32. The transmission sleeve 54 is coaxially sleeved on the central screw 32, and the transmission sleeve 54 and the central screw 32 are radially positioned and connected by a key and keyway that are matched. The transmission sleeve 54 is axially positioned and rolled and connected to the connecting plate 53. The drilling drive motor 31 is a hollow shaft motor with a hollow inner cavity, and the hollow shaft motor is fixedly installed on the outer end of the expansion joint 52. One end of the hollow shaft motor is connected to the hollow drill bit 4 and the other end is connected to the transmission sleeve 54. The hollow inner cavity of the hollow shaft motor, the hollow inner cavity of the central screw 32, the inner cavity of the transmission sleeve 54, and the inner cavity of the hollow drill bit 4 together form the grouting channel 7 of the multi-stage self-drilling hollow grouting pipe 3. When the hollow shaft motor is controlled to rotate, it drives the hollow drill bit 4 to rotate while simultaneously driving the transmission sleeve 54 to rotate. The rotation of the transmission sleeve 54, in turn, drives the central screw 32 to rotate. The central screw 32, through threaded engagement, drives the connecting disc 53 to move relative to it, causing the telescopic joint 52 to extend along its axial direction. This allows the hollow drill bit 4 to rotate while simultaneously extending along with the telescopic joint 52. The hollow telescopic sleeve 5 can be a multi-stage telescopic structure; that is, the telescopic joint 52 can include multiple sub-telescopic joints that are sequentially nested together, with axial sliding and radial positioning configurations between the sub-telescopic joints. Figure 4The diagram shows a two-stage telescopic structure including two sub-telescopic sections. Similar to the aforementioned transmission structure, each sub-telescopic section has a connecting plate 53 and a transmission sleeve 54 on its inner end. The connecting plate 53 of the inner sub-telescopic section is threadedly connected to the transmission sleeve 54 of the outer sub-telescopic section. The transmission sleeve 54 of the inner sub-telescopic section is sleeved on the transmission sleeve 54 of the outer sub-telescopic section, and the transmission sleeve 54 of the inner sub-telescopic section is radially positioned and connected to the transmission sleeve 54 of the outer sub-telescopic section. The transmission sleeve 54 of each sub-telescopic section is axially positioned and rolledly connected to its corresponding connecting plate 53. The hollow shaft motor is fixedly installed on the outer end of the innermost sub-telescopic section. A spline sleeve 55 is also included. The hollow shaft motor is splinedly connected to the transmission sleeve 54 of the innermost sub-telescopic section through the spline sleeve 55. By reasonably setting the telescopic stroke of the multiple sub-telescopic sections and the engagement length of the spline sleeve 55, the hollow drill bit 4 can be rotated while extending through the multiple sub-telescopic sections.

[0045] Regarding the power supply method for the drilling drive motor 31, it can be powered by a built-in battery, wirelessly powered by a drone, or wired. Since wired power supply is more stable and can achieve high current supply, it is the preferred method of this invention. Specifically, the drilling drive motors 31 of all multi-stage self-drilling hollow grouting pipes 3 on the anchor mesh module are electrically connected via module wires. The module wires are equipped with quick-connect electrode terminals I with electromagnetic coupling devices. One end of the main power supply wire is equipped with a quick-connect electrode terminal II with an electromagnetic coupling device, and the other end is connected to a power source. During grouting operations, the central control unit can control the drone equipped with the hoisting assembly to send the terminal of the main power supply wire to a set position above the deployed anchor mesh module. By precisely controlling the flight position and altitude of the drone, the quick-connect electrode terminal II of the main power supply wire and the quick-connect electrode terminal I of the module wire are securely connected via the electromagnetic coupling device, thus achieving circuit connection.

[0046] This landslide emergency rescue system, which rapidly reduces the risk of secondary collapse, enables the rapid construction and adjustable adaptation of temporary slope protection. This effectively reduces the risk of secondary collapse and localized sliding in complex environments and under tight time constraints, thereby improving the safety and efficiency of rescue operations.

Claims

1. A landslide emergency rescue system for rapidly reducing the risk of secondary collapse, characterized in that, It includes temporary slope protection units, auxiliary operation units, grouting units, and centralized electrical control units; The temporary slope protection unit includes multiple modular anchor mesh modules. The anchor mesh module is a regular polygonal mesh structure. Multiple intersecting flexible warp and weft lines (2) form a mesh structure. Each network node of two adjacent meshes is equipped with a multi-stage self-drilling hollow grouting pipe (3). The multi-stage self-drilling hollow grouting pipe (3) includes a base, a hollow telescopic sleeve (5), and a hollow drill bit (4) in sequence along the drilling direction. The base is fixedly connected to the network node. The multi-stage self-drilling hollow grouting pipe (3) is also equipped with a drilling drive motor that is connected to the hollow telescopic sleeve (5) and the hollow drill bit (4). 31), the inner cavity of the hollow telescopic sleeve (5) and the inner cavity of the hollow drill bit (4) together form the grouting channel (7) of the multi-stage self-drilling hollow grouting pipe (3). The grouting channel (7) extends to the outside of the multi-stage self-drilling hollow grouting pipe (3), and the input end of the grouting channel (7) is provided with a quick-connect grouting connector I with a grouting magnetic coupling device. The hollow drill bit (4) is provided with a grout outlet communicating with its inner cavity. The network node located on the regular polygonal outer frame is provided with a frame magnetic coupling device (1). The frame magnetic coupling device (1) includes a quick magnetic coupling connector that is matched and inserted. The auxiliary operation unit includes a drone group and a lidar scanning component and a hoisting component that can be detached and connected to the drone group. The drone group is equipped with a pattern recognition sensor, and the hoisting component includes a quick-lifting connector. The grouting unit includes a grouting tank with a grouting pump, and the grouting tank contains a fast-setting composite grout. The grouting tank also includes a grouting hose. The output end of the grouting hose is also equipped with a quick-connect grouting connector II with a grouting magnetic coupling device, and the magnetic poles of the grouting magnetic coupling device of the quick-connect grouting connector II and the quick-connect grouting connector I are engaged. The centralized electrical control unit includes a central control unit, which is electrically connected to the drilling drive motor (31) of the multi-stage self-drilling hollow grouting pipe (3), the grouting pump of the grouting unit, the unmanned aerial vehicle group of the auxiliary operation unit, the pattern recognition sensor and the lidar scanning component.

2. The landslide emergency rescue system for rapidly reducing the risk of secondary collapse according to claim 1, characterized in that, The base of the multi-stage self-drilling hollow grouting pipe (3) is provided with a pressure bearing plate (8), and the pressure bearing plate (8) is connected to the base top through a ball joint structure.

3. The landslide emergency rescue system for rapidly reducing the risk of secondary collapse according to claim 1, characterized in that, The flexible warp and flexible weft (2) of the anchor net module are flexible warp hoses and flexible weft hoses with hollow cavities. The hollow inner cavities of the flexible warp hoses and flexible weft hoses are connected at the network node positions of the grid to form an overall grouting channel. The grouting channel (7) of the multi-stage self-drilling hollow grouting pipe (3) is connected to the overall grouting channel. The frame magnetic coupling device (1) on the network node on the regular polygonal outer frame is equipped with a one-way valve II that can be opened and closed in one direction. When the anchor net module is not spliced ​​and connected to another adjacent anchor net module through the frame magnetic coupling device (1), the one-way valve II is in the closed state. When the anchor net module is spliced ​​and connected to another adjacent anchor net module through the frame magnetic coupling device (1), the one-way valve II is in the open state.

4. The landslide emergency rescue system for rapidly reducing the risk of secondary collapse according to claim 3, characterized in that, A quick-connect grouting joint I with a grouting magnetic coupling device is installed at a network node of the anchor network module. The quick-connect grouting joint I is equipped with a one-way valve I that can be opened and closed in one direction. When the quick-connect grouting joint II is not connected to the quick-connect grouting joint I through the grouting magnetic coupling device, the one-way valve I is in the closed state. When the quick-connect grouting joint II is connected to the quick-connect grouting joint I through the grouting magnetic coupling device, the one-way valve I is in the open state, and grouting is carried out through the quick-connect grouting joint I of a certain anchor network module, so as to realize the simultaneous grouting of the already deployed anchor network module.

5. The landslide emergency rescue system for rapidly reducing the risk of secondary collapse according to claim 1, characterized in that, The multi-stage self-drilling hollow grouting pipe (3) is equipped with a monitoring sensor (6), a power supply module and a wireless transceiver module, and the wireless transceiver module is wirelessly connected to the central control unit.

6. The landslide emergency rescue system for rapidly reducing the risk of secondary collapse according to claim 1, characterized in that, The drilling drive motor (31) is a hollow shaft motor with a hollow inner cavity. The central screw (32) is connected to the hollow telescopic sleeve (5) through a threaded connection. The central screw (32) also has a hollow inner cavity. The hollow telescopic sleeve (5) includes a base section (51), a telescopic section (52), a connecting plate (53), and a transmission sleeve (54). The base section (51) and the telescopic section (52) are connected in sequence and are axially sliding and radially positioned. The base section (51) is fixedly installed and connected to the base of the multi-stage self-drilling hollow grouting pipe (3). The central screw (32) is coaxially rolled and installed on the base section (51). The connecting plate (53) is coaxially fixedly installed on the inner end of the telescopic section (52). 53) It is threadedly connected to the central screw (32), and the transmission sleeve (54) is coaxially sleeved on the central screw (32). The transmission sleeve (54) is radially positioned and connected to the central screw (32). The transmission sleeve (54) is axially positioned and rolled and connected to the connecting plate (53). The drilling drive motor (31) is a hollow shaft motor with a hollow inner cavity. The hollow shaft motor is fixedly installed on the outer end of the expansion joint (52). One end of the hollow shaft motor is connected to the hollow drill bit (4) and the other end is connected to the transmission sleeve (54). The hollow inner cavity of the hollow shaft motor, the hollow inner cavity of the central screw (32), the inner cavity of the transmission sleeve (54) and the inner cavity of the hollow drill bit (4) together form the grouting channel (7) of the multi-stage self-drilling hollow grouting pipe (3).

7. The landslide emergency rescue system for rapidly reducing the risk of secondary collapse according to claim 6, characterized in that, The expansion joint (52) includes multiple sub-expansion joints that are sequentially connected, and the multiple sub-expansion joints are axially sliding and radially positioned. Each sub-expansion joint has a connecting plate (53) and a transmission sleeve (54) on its inner end. The connecting plate (53) of the inner sub-expansion joint is threadedly connected to the transmission sleeve (54) of the outer sub-expansion joint. The transmission sleeve (54) of the inner sub-expansion joint is sleeved on the transmission sleeve (54) of the outer sub-expansion joint, and the transmission sleeve (54) of the inner sub-expansion joint is radially positioned and connected to the transmission sleeve (54) of the outer sub-expansion joint. The transmission sleeve (54) of each sub-expansion joint is axially positioned and rolledly connected to its corresponding connecting plate (53). The hollow shaft motor is fixedly installed on the outer end of the innermost sub-expansion joint. It also includes a spline sleeve (55). The hollow shaft motor is splinedly connected to the transmission sleeve (54) of the innermost sub-expansion joint through the spline sleeve (55).

8. The landslide emergency rescue system for rapidly reducing the risk of secondary collapse according to claim 1, characterized in that, The drilling drive motors (31) of all multi-stage self-drilling hollow grouting pipes (3) on the anchor mesh module are electrically connected through the module wires. The module wires are equipped with a fast electrode connection terminal I with an electromagnetic force coupling device. One end of the main power supply wire is equipped with a fast electrode connection terminal II with an electromagnetic force coupling device, and the other end is connected to the power supply.

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