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CN-121994144-A - Slope displacement monitoring device

CN121994144ACN 121994144 ACN121994144 ACN 121994144ACN-121994144-A

Abstract

The invention discloses a slope displacement monitoring device, which relates to the technical field of slope displacement monitoring and comprises drilling holes distributed on the surface of a grid support, wherein the drilling holes are distributed at the center of the grid support, a detection rod assembly is arranged in the drilling holes, the detection rod assembly is connected with a displacement sensor, a surface detection assembly is arranged on the grid support, the center of the surface detection assembly is connected with the detection rod assembly, the detection rod assembly comprises a first combination cylinder and a plurality of second combination cylinders, the first combination cylinder and the second combination cylinder are made of elastic materials, the first combination cylinder and the second combination cylinder are connected end to end, an optical fiber grating is coaxially arranged in the first combination cylinder and extends into the second combination cylinder, leakage holes are formed in the side walls of the first combination cylinder and the second combination cylinder, the detection rod assembly consisting of the first combination cylinder and the second combination cylinder is filled with elastic materials, and the displacement inside the slope is monitored in real time through the optical fiber grating packaged by the elastic materials.

Inventors

  • XU SHIMING

Assignees

  • 北京建工路桥集团有限公司

Dates

Publication Date
20260508
Application Date
20260408

Claims (10)

  1. 1. The slope displacement monitoring device comprises drill holes distributed on the surface of a slope, wherein the drill holes are distributed at the center of a grid support (1), and the device is characterized in that detection rod assemblies (2) are arranged in the drill holes, the detection rod assemblies (2) are connected with displacement sensors, a surface detection assembly (3) is arranged on the grid support (1), and the center of the surface detection assembly (3) is connected with the detection rod assemblies (2); The detection rod assembly (2) comprises a first combination cylinder (20) and a plurality of second combination cylinders (21), the first combination cylinder (20) and the second combination cylinder (21) are made of elastic materials, the first combination cylinder (20) and the second combination cylinder (21) are connected end to end and between the adjacent second combination cylinders (21), a fiber grating (23) is coaxially arranged in the first combination cylinder (20) and extends into the second combination cylinder (21), leakage holes (28) are formed in the side walls of the first combination cylinder (20) and the second combination cylinder (21), elastic materials are filled in the detection rod assembly (2) formed by the first combination cylinder (20) and the second combination cylinder (21), and the fiber grating (23) is arranged at the central position of the first combination cylinder (20) and the central position of the second combination cylinder (21) and is packaged through the filled elastic materials.
  2. 2. The slope displacement monitoring device according to claim 1, wherein a positioning cylinder (210) is installed in the drilling hole, a filling groove (211) is uniformly formed in the side wall of the positioning cylinder (210), the axes of the filling groove (211) and the positioning cylinder (210) are parallel to each other and extend to the bottom end of the positioning cylinder (210), and leakage holes (28) in the side walls of the first combined cylinder (20) and the second combined cylinder (21) are arranged corresponding to the filling groove (211).
  3. 3. The slope displacement monitoring device according to claim 2, wherein a first positioning hole (212) is formed at the upper end of the positioning cylinder (210), a second positioning hole (200) is formed at the upper end of the combined cylinder (20), and the first positioning hole (212) corresponds to the second positioning hole (200) and the injection groove (211).
  4. 4. A slope displacement monitoring device according to claim 3, wherein the edge of the positioning barrel (210) is provided with a dismounting groove (213), the first positioning hole (212) is arranged in a penetrating manner, and the positioning barrel (210) is fixedly mounted with the drilling edge through the first positioning hole (212).
  5. 5. The slope displacement monitoring device according to claim 1, wherein mounting holes are formed in the side walls of the first combined cylinder (20) and the second combined cylinder (21), a positioning ring (25) is sleeved on the outer side of the fiber bragg grating (23), a positioning screw (27) is arranged at the mounting hole, and the positioning ring (25) is connected with the first combined cylinder (20) and the second combined cylinder (21) through the positioning screw (27).
  6. 6. The slope displacement monitoring device according to claim 5, wherein a round chamfer is arranged at the connection part of the inner ring of the positioning ring (25) and the fiber bragg grating (23), and a material injection hole (26) is arranged on the positioning ring (25).
  7. 7. The slope displacement monitoring device according to claim 1, wherein an internal thread is provided at an end of the first combined cylinder (20), an internal thread and an external thread are provided at two ends of the second combined cylinder (21), the first combined cylinder (20) and the second combined cylinder (21) are connected in a combined manner by the internal thread and the external thread, a connecting spring (24) is further provided between the first combined cylinder (20) and the second combined cylinder (21) and between the second combined cylinder (21), and a plurality of spring rods (29) are embedded in the internal thread portions of the first combined cylinder (20) and the second combined cylinder (21).
  8. 8. The slope displacement monitoring device according to claim 1, wherein a plug (22) is arranged at the end of the first combined cylinder (20), mounting plugs (221) and connecting threads (220) are respectively arranged at two sides of the plug (22), the mounting plugs (221) are in butt joint with the end of the first combined cylinder (20), and the plug (22) is connected with the surface detection assembly (3) through the connecting threads (220).
  9. 9. The slope displacement monitoring device according to claim 8, wherein the surface detection assembly (3) comprises a central ring (30), a sealing nut (33) is arranged on an inner ring of the central ring (30), the sealing nut (33) is matched with the connecting screw thread (220), a butt joint hole (330) is arranged on the sealing nut (33), a sliding groove (300) is arranged on the side edge of the central ring (30), a plurality of matching sliding blocks (310) are distributed in the sliding groove (300), the matching sliding blocks (310) are connected with sliding rods (31), a plug-in cylinder (32) is rotatably arranged at the vertex part of the grid support (1), the sliding rods (31) are mutually plugged in the plug-in cylinder (32), and the fiber bragg gratings (23) penetrate through the sealing nut (33) and are connected with a central positioning assembly (4).
  10. 10. A slope displacement monitoring device according to claim 9, characterized in that the centering assembly (4) comprises a fixing frame (40) arranged on the surface of the grid support (1), a center positioning disc (43) is arranged in the center of the fixing frame (40), the fiber bragg grating (23) penetrates through the center positioning disc (43) and is connected with a sensor connector (41), and the sensor connector (41) is connected with a displacement sensor.

Description

Slope displacement monitoring device Technical Field The invention relates to the technical field of slope displacement monitoring, in particular to a slope displacement monitoring device. Background The slope support is generally covered and protected by a grid structure on the slope, but even though the slope is covered and protected by the grid structure, most structures in the slope and the grid support body are still divided into two parts, the grid support mainly limits water and soil loss on the surface of the slope, the effect of the grid support on the inside of the slope is obviously lower than that of the surface of the slope, layered displacement tends to occur in the inside of the slope compared with the surface of the slope along with the time, the grid structure is good, but the inside of the slope is collapsed, peeled off, water and soil loss and other structural damage phenomena occur, and the problems of slope support failure, roadbed instability and the like are caused. Therefore, a slope displacement monitoring device is needed to monitor the displacement conditions of different depths inside the slope, and ensure the reliability of the whole support of the slope. Disclosure of Invention The invention aims to provide a slope displacement monitoring device for solving the problems in the background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: The utility model provides a side slope displacement monitoring devices, is including distributing the drilling that sets up on the side slope surface, drilling distribution sets up the net central point that supports at the net, be provided with the detection rod subassembly in the drilling, it is connected with displacement sensor to detect the rod subassembly, be provided with the surface detection subassembly on the net is supported, the center of surface detection subassembly links to each other with detecting the rod subassembly. The detection rod assembly comprises a first combination cylinder and a plurality of second combination cylinders, the first combination cylinder and the second combination cylinder are made of elastic materials, the first combination cylinder is connected with the second combination cylinder and the adjacent second combination cylinder in an end-to-end mode, the first combination cylinder is internally and coaxially provided with a fiber grating, the fiber grating extends into the second combination cylinder, leakage holes are formed in the side walls of the first combination cylinder and the second combination cylinder, elastic materials are filled in the detection rod assembly formed by the first combination cylinder and the second combination cylinder, the fiber grating is arranged at the central positions of the first combination cylinder and the second combination cylinder, and the fiber grating is packaged through the filled elastic materials. As a still further scheme of the invention, a positioning cylinder is arranged in the drilling hole, the side walls of the positioning cylinder are uniformly provided with injection grooves, the axes of the injection grooves and the positioning cylinder are mutually parallel and extend to the bottom end of the positioning cylinder, and the leak holes on the side walls of the first combined cylinder and the second combined cylinder are arranged corresponding to the injection grooves. As a still further scheme of the invention, the upper end of the positioning cylinder is provided with a positioning hole I, the upper end of the combined cylinder is provided with a positioning hole II, and the positioning hole I corresponds to the positioning hole II and the material injection groove. As a still further proposal of the invention, the edge of the positioning cylinder is provided with a dismounting groove, the positioning hole is arranged in a penetrating way, and the positioning cylinder is fixedly arranged with the edge of the drilling hole through the first positioning hole. As a still further scheme of the invention, mounting holes are formed in the side walls of the first combined cylinder and the second combined cylinder, positioning rings are sleeved on the outer sides of the fiber gratings, positioning screws are arranged at the mounting holes, and the positioning rings are connected with the first combined cylinder and the second combined cylinder through the positioning screws. As a still further scheme of the invention, a round chamfer is arranged at the connection part of the inner ring of the positioning ring and the fiber bragg grating, and a material injection hole is arranged on the positioning ring. As a still further scheme of the invention, the end part of the first combined cylinder is provided with internal threads, the two ends of the second combined cylinder are respectively provided with internal threads and external threads, the first combined cylinder and the second combined cylind