CN-121992801-A - Slope protection net and geological disaster monitoring protection system

Abstract

The application provides a slope protection net and a geological disaster monitoring protection system. The side slope protection net comprises a rope net and a plurality of resistance detection elements. The rope net is formed by braiding a plurality of ropes, each rope comprises conductive fibers, the rope net comprises a plurality of braiding nodes, each braiding node is formed by intersecting or winding at least two ropes, the braiding nodes are located between adjacent first rope sections and second rope sections of the same rope and between adjacent first rope sections of two different ropes and between adjacent second rope sections of the two different ropes, a plurality of resistance detection elements are fixedly connected with the rope net, each resistance detection element comprises a controller and at least two detection probes connected with the controller, each detection probe comprises a first detection probe and a second detection probe, and in the same resistance detection element, the first detection probes and the second detection probes are respectively connected with the adjacent two rope sections of the same rope. The early warning effect of the geological disaster of the side slope can be improved.

Inventors

• REN TIANLING
• Zi Yanghao
• HE YUHANG
• YANG DIE

Assignees

• 清华大学

Dates

Publication Date

20260508

Application Date

20260326

Claims (10)

1. 1. A side slope protection network, comprising: The rope net is formed by braiding a plurality of ropes, each rope comprises conductive fibers, the rope net comprises a plurality of braiding nodes, each braiding node is formed by intersecting or winding at least two ropes, each rope comprises a plurality of rope sections, each rope section comprises a plurality of first rope sections and a plurality of second rope sections which are alternately arranged along the length direction of the rope, wherein any two adjacent rope sections are respectively a first rope section and a second rope section; The device comprises a rope net, a plurality of resistance detection elements, a first rope section and a second rope section, wherein the rope net is fixedly connected with the plurality of resistance detection elements, each resistance detection element comprises a controller and at least two detection probes connected with the controller, each detection probe comprises a first detection probe and a second detection probe, in the same resistance detection element, the first detection probes and the second detection probes are respectively connected with two adjacent rope sections of the same rope, the first detection probes are electrically connected with conductive fibers of the first rope section, and the second detection probes are electrically connected with conductive fibers of the second rope section.
2. 2. The slope protection network of claim 1, wherein the conductive fibers comprise a fiber matrix and carbon nanotubes doped within the fiber matrix.
3. 3. The side slope protection network of claim 1 or 2, wherein the conductive fibers comprise a fiber matrix and graphene overlaying an outside of the fiber matrix.
4. 4. The slope protection network of claim 1, wherein the rope comprises a rope core and a plurality of strands of conductive fibers surrounding the rope core, and the rope core is made of an insulating material and/or a waterproof material; And/or the rope further comprises a first encapsulation layer covering the outer side of the multi-strand conductive fiber; And/or, the resistance detection element further comprises a second packaging layer covering the outer side of the controller.
5. 5. The slope protection network of claim 1, wherein the plurality of cords comprises a plurality of first cords and a plurality of second cords, the first cords and the second cords being cross-wound to form at least one weave node, each of the resistive sensing elements further comprising a third sensing probe and a fourth sensing probe connected to the controller, the first sensing probe being electrically connected to conductive fibers in the first cord section of the first cord and the second sensing probe being electrically connected to conductive fibers in the second cord section of the first cord, the fourth sensing probe being electrically connected to conductive fibers in the second cord section of the second cord, the first and second sensing probes being cross-wound to form the same weave node.
6. 6. The slope protection network of claim 1, further comprising a plurality of load bearing structures, each of said resistive sensing elements being secured to a load bearing structure, said load bearing structure overlying a portion of said rope segments adjacent said braiding node, each of said load bearing structures being provided with at least two sensing pinholes, each of said sensing pinholes exposing at least a portion of said first rope segment or at least a portion of said second rope segment of one of said ropes, each of said sensing probes being inserted into one of said sensing pinholes and in contact with said conductive fibers.
7. 7. The slope protection net according to claim 6, wherein a first magnetic attraction layer is arranged on a surface of one side, far away from the braiding node, of the bearing structure, the detection pinholes penetrate through the first magnetic attraction layer, a second magnetic attraction layer is arranged on a surface of one side, close to the braiding node, of the resistance detection element, the detection probe and the second magnetic attraction layer are located on the same side of the resistance detection element, and the second magnetic attraction layer is used for being in magnetic attraction connection with the first magnetic attraction layer; and/or the bearing structure comprises a cavity and a plurality of openings communicated with the cavity, each braiding node is positioned in the cavity of one bearing structure, and each rope section respectively extends out of one opening.
8. 8. A geological disaster monitoring and protection system, comprising: The slope protection net according to any one of claims 1 to 7, wherein the resistance detection element of the slope protection net is further provided with a communication unit, and the communication unit is electrically connected with a controller and is used for sending data collected by the controller; And the processor is in communication connection with the communication unit, receives the data sent by the communication unit and processes the data.
9. 9. The geological disaster monitoring and protecting system of claim 8, wherein said processor comprises: The data processing unit is configured to receive the data detected by the resistance detection element and perform characteristic extraction on the data, and extract the average strain rate and the frequency spectrum characteristic in a specific time period to obtain a data frame; The model analysis unit is configured to receive the data frame processed by the data processing unit and analyze the data frame through a space-time diagram neural network model, wherein the diagram top point of the space-time diagram neural network model corresponds to the space coordinates of the braiding nodes of the slope protection net, and the diagram edge of the space-time diagram neural network model corresponds to the deformation propagation direction; And the early warning unit is used for generating early warning information when the matching degree exceeds a preset threshold value.
10. 10. The geological disaster monitoring and protecting system of claim 9, further comprising a verification unit configured to build and perfect a "strain-resistance-catastrophe-early warning" mapping database for verifying early warning information of an early warning unit in the processor based on centrifuge physical model test and multi-field coupling numerical simulation.

Description

Slope protection net and geological disaster monitoring protection system Technical Field The application relates to the technical field of slope protection nets, in particular to a slope protection net and a geological disaster monitoring protection system. Background Geological disasters, such as debris flow, mountain collapse, landslide and the like, frequently occur in the global scope, and seriously threaten the life and property safety of people. However, in vast remote mountain areas or areas with limited development, the low-cost side slope cable protection net is still commonly adopted. Such traditional protective structure only possesses passive safeguard function, can't carry out early perception and early warning to catastrophe, and the loss that the disaster takes place to bring is difficult to avoid. In view of disaster occurrence mechanism, geological disasters such as landslide have sudden nature, and macroscopic damage often occurs instantaneously, but strain accumulation and internal defect development are usually accompanied by a long period of time in the inoculation stage before the macroscopic damage. This strain accumulation window provides a critical time opportunity for early risk detection, early warning, and active intervention. Therefore, a scheme for realizing active sensing and early warning on the slope protection net is needed. Disclosure of Invention The embodiment of the application provides a side slope protection net, which comprises the following components: The rope net is formed by braiding a plurality of ropes, each rope comprises conductive fibers, the rope net comprises a plurality of braiding nodes, each braiding node is formed by intersecting or winding at least two ropes, each rope comprises a plurality of rope sections, each rope section comprises a plurality of first rope sections and a plurality of second rope sections which are alternately arranged along the length direction of the rope, wherein any two adjacent rope sections are respectively a first rope section and a second rope section; The device comprises a rope net, a plurality of resistance detection elements, a first rope section and a second rope section, wherein the rope net is fixedly connected with the plurality of resistance detection elements, each resistance detection element comprises a controller and at least two detection probes connected with the controller, each detection probe comprises a first detection probe and a second detection probe, in the same resistance detection element, the first detection probes and the second detection probes are respectively connected with two adjacent rope sections of the same rope, the first detection probes are electrically connected with conductive fibers of the first rope section, and the second detection probes are electrically connected with conductive fibers of the second rope section. In some embodiments, the conductive fiber includes a fiber matrix and carbon nanotubes doped inside the fiber matrix. In some embodiments, the conductive fibers include a fiber matrix and graphene overlaying an outside of the fiber matrix. In some embodiments, the rope comprises a rope core and a plurality of strands of conductive fibers surrounding the rope core, wherein the rope core is made of insulating materials and/or waterproof materials; And/or the rope further comprises a first encapsulation layer covering the outer side of the multi-strand conductive fiber; And/or, the resistance detection element further comprises a second packaging layer covering the outer side of the controller. In some embodiments, the plurality of cords includes a plurality of first cords and a plurality of second cords that are cross-wound to form at least one weave node, each of the resistance sensing elements further includes a third sensing probe and a fourth sensing probe that are connected to the controller, the first sensing probe being electrically connected to conductive fibers within the first cord segment of the first cord and the second sensing probe being electrically connected to conductive fibers within the second cord segment of the first cord, and the fourth sensing probe being electrically connected to conductive fibers within the second cord segment of the second cord in the first cord and the second cord cross-wound to form the same weave node. In some embodiments, the slope protection net further comprises a plurality of bearing structures, each resistance detection element is fixed on one bearing structure, the bearing structures cover the part of the rope section adjacent to the braiding node, each bearing structure is provided with at least two detection pinholes, each detection pinhole exposes at least part of the first rope section or at least part of the second rope section of one rope, and each detection probe is inserted into one detection pinhole and is in contact with the conductive fiber. In some embodiments, a first magnetic attraction layer is arranged o