Thixotropic early warning device for monitoring surrounding rock deformation at tunnel portal

Abstract

The present invention relates to the field of engineering monitoring devices, and discloses a thixotropic early warning device for monitoring deformation of surrounding rocks in a tunnel portal section, comprising a support bar, which is fixedly arranged on the ground, wherein an auxiliary mechanism is connected inside the support bar; a plurality of support arcs are provided, wherein the plurality of support arcs are interconnected, wherein two support arcs located at the bottom are connected to the support bar, wherein an actuator is connected inside the support arc; an extender is provided in a rock formation, wherein one end of the extender is connected to the support arc, and the other end of the extender is connected to a limiter located in the rock formation. The present invention can implement monitoring, and can cooperate with a plurality of output devices at the same time, can perform multiple outputs, perform different warnings, and simultaneously guide water flow to reduce the occurrence of danger, and can output a plurality of data in advance, perform early warning, and reduce the occurrence of danger.

Description

Technical Field

[0001] The invention relates to the field of engineering monitoring devices, and in particular to a thixotropic early warning device for monitoring deformation of surrounding rocks in a tunnel portal section. Background Art

[0002] The tunnel entrance is the tunnel portal, which is used to maintain the stability of the tunnel entrance backslope and the road cutting slope; collect and drain the surface water flow, including the tunnel portal, tunnel entrance ventilation and drainage facilities, side and backslope support structures and approach roads, etc. Underground projects with protection requirements also include protective doors, closed doors, wave elimination and filtration facilities, etc., which play a pivotal role in tunnel engineering and are also the first threshold for tunnel safety. When they undergo certain deformation or other problems, it also indicates that certain problems may also occur in the internal tunnel, and it is the first line of defense for monitoring safety.

[0003] Existing monitoring equipment generally installs some sensors or cameras at the entrance of the cave, and uses the sensor's received data or image comparison to monitor deformation, etc. However, it has a delay as a whole and cannot provide early warning. It also cannot delay or eliminate the danger and still has certain shortcomings. Summary of the invention

[0004] In order to solve the technical problem of poor monitoring, the present invention provides a thixotropic early warning device for monitoring the deformation of surrounding rocks at a tunnel entrance section.

[0005] The present invention is implemented by the following technical scheme: a thixotropic early warning device for monitoring the deformation of surrounding rock in a tunnel portal section, comprising: a support bar, which is fixedly arranged on the ground, and an auxiliary mechanism is connected inside the support bar; a plurality of support arcs are provided, and the plurality of support arcs are connected to each other, and the two support arcs located at the bottom are connected to the support bar, and an actuator is connected inside the support arc; an extender is arranged in a rock formation, one end of the extender is connected to the support arc, and the other end of the extender is connected to a limiter located in the rock formation.

[0006] As a further improvement of the above scheme, the auxiliary mechanism includes: a volume chamber, which is arranged in the support bar, and the volume chamber is connected to the actuator; a controller, which is arranged in the support bar, and a cable located in the support bar is arranged on one side of the controller, and a speaker located in the support bar is arranged on one side of the cable.

[0007] As a further improvement of the above scheme, the actuator includes: a limiting sleeve, two of which are provided, the limiting sleeve is fixedly connected to the supporting arc, the bottom of the limiting sleeve is fixedly connected to a sensor 1, one side of the sensor 1 is fixedly connected to a uniform plate, and one side of the uniform plate is fixedly connected to a spring; a follower block, which is slidably sleeved with the limiting sleeve, the follower block is fixedly connected to the spring, one end of the follower block is fixedly connected to a contact plate located outside the supporting arc; a clamping sleeve, which is fixedly connected to the outside of the supporting arc, one side of the clamping sleeve is connected to a connecting unit; a conducting tube 1, which is connected to the connecting unit, and the other end of the conducting tube 1 is connected to an arc tube, and two adjacent arc tubes are connected to each other.

[0008] As a further improvement of the above scheme, the connecting unit includes: a card-joined box, which is card-joined with the card-joined sleeve, and the card-joined box is connected to the support arc through bolts; a stabilizing sleeve one, which is arranged in the card-joined box, and the stabilizing sleeve one is threadedly connected to the extender; a sensor five, which is provided in plurality, and the sensor five is located on the outside of the card-joined box; a sensor group, which is fixedly connected to the card-joined box, and the sensor group is located in the card-joined box; a stabilizing sleeve two, which is sleeved on the outside of the extender, and a receiving box is connected to the stabilizing sleeve two, and a plurality of drainage pipes two connected to the card-joined box are fixedly connected to one side of the receiving box, and a sensor two and a sensor three are fixedly connected in the receiving box, and the stabilizing sleeve is in contact with the stabilizing sleeve.

[0009] As a further improvement of the above solution, a sealing plug is clamped on the inner side of the supporting arc, a clamping block is fixedly connected to one side of the supporting arc, a clamping groove is connected to the other side of the supporting arc, and the clamping blocks and clamping grooves on two adjacent supporting arcs are connected.

[0010] As a further improvement of the above solution, mounting grooves are provided on both sides of the support arc, connecting plates are clamped in the mounting grooves, and the connecting plates are fixedly connected to the support arc by bolts.

[0011] As a further improvement of the above scheme, the extender includes an outermost rubber layer, a waterproof layer and a fiber layer 1 are sleeved in the rubber layer, a plurality of steel cables 1 are connected in the fiber layer 1, a side of the steel cable 1 away from the fiber layer 1 is connected in sequence to a protective sheet and a fiber layer 3, an inner side of the fiber layer 3 is connected to a plurality of steel cables 2, one side of the steel cable 2 is connected to a fiber layer 4, a plurality of steel cables 3 are connected in the fiber layer 4, a fiber layer 5 and an aluminum foil layer are connected in sequence in the steel cable 3, a support rod is fixedly connected to one side of the aluminum foil layer, an expansion tube is connected to the other end of the support rod, a plurality of filter tubes penetrating the waterproof layer, the fiber layer 1, the fiber layer 2, the fiber layer 3, the fiber layer 5 and the aluminum foil layer are connected to the rubber layer, the filter tubes are filled with heavy filter materials, and the expansion tube extends into the card box.

[0012] As a further improvement of the above scheme, the limiter includes: a fixed sleeve, one end of which is connected to an elastic ball, and a camera and an LED light fixedly connected to the fixed sleeve are arranged in the elastic ball; a clamping plate, which is clamped with the fixed sleeve, one side of the clamping plate is rotatably connected to multiple rotating arcs, one side of the rotating arc is rotatably connected to a telescopic rod rotatably connected to the rubber layer, the input end of the telescopic rod is connected to a conducting tube 2 extending into the expansion tube, one end of the expansion tube is fixedly connected to the clamping plate, and one end of the expansion tube extends into the fixed sleeve; a plurality of follower plates are arranged, the follower plates are fixedly connected to the fixed sleeve, the outer side of the follower plate is fixedly connected to a protective plate, and the inner side of the follower plate is fixedly connected to a sensor 4 located in the fixed sleeve; a support box, which is fixedly connected in the middle of the fixed sleeve.

[0013] As a further improvement of the above scheme, a plurality of barbs are fixedly connected to the rotating arc, a display screen is arranged on the supporting arc, a discharge pipe 1 is connected to one side of the volume cavity, one end of the discharge pipe 1 is connected to the volume cavity, and one end of the arc-shaped tube located at the bottom is communicated with the volume cavity.

[0014] As a further improvement of the above solution, a sensor eight is connected to the bottom of the support bar, a touch screen is arranged on the support bar, a protection tube one is arranged in the support arc, and a protection tube two is arranged on the outer side of the expansion tube.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the mutual cooperation between multiple devices and the induction of sensors, real-time monitoring can be achieved. At the same time, with multiple output devices, multiple outputs can be performed, different warnings can be given, and water flow can be guided at the same time to reduce the occurrence of danger. In addition, multiple data can be output in advance, early warning can be given, and the occurrence of danger can be reduced.

[0017] 2. The limitation of the limiter, the dragging of the extender and the support of the support arc can slow down the deformation of the rock formation, and at the same time make the overall force of the rock formation uniform, reduce the possibility of major dangers and ensure overall safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front cross-sectional schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the unit structure of the present invention;

[0020] Figure 3 It is a partial front cross-sectional schematic diagram of the present invention;

[0021] Figure 4 It is a left side cross-sectional schematic diagram of the present invention;

[0022] Figure 5 is a schematic diagram of the qualifier structure;

[0023] Figure 6 is a schematic cross-sectional view of the limiter from the front;

[0024] Figure 7 is a schematic cross-sectional view of the extender;

[0025] Figure 8 Schematic diagram of the extender structure.

[0026] Description of main symbols:

[0027] 01. Support bar; 02. Extender; 03. Limiter; 04. Sealing plug; 05. Support arc; 07. Display screen; 08. Connecting plate; 09. Contact plate; 12. Drain pipe 1; 13. Controller; 14. Cable; 15. Speaker; 16. Volume chamber; 17. Sensor group; 18. Stabilizing sleeve 1; 19. Sensor 5; 20. Snap-in box; 21. Snap-in sleeve; 22. Conducting pipe 1; 23. Sensor 1; 24. Spring; 25. Follower block; 26. Limiting sleeve; 27. Arc tube; 28. Elastic ball; 29. ​​Camera; 30. LED light; 31. Fixing sleeve; 32. Conducting pipe 2; 33. Expansion pipe; 34. Receiving box; 35. Drain pipe 2; 36. Sensor 2; 37. Sensor 3; 38. Stabilizing sleeve 2; 39. Telescopic rod; 40. Rotating arc; 41. Snap-in plate; 42. Follow-up plate; 43. Sensor 4; 44. Protective sheet; 45. Support box; 50. Rubber layer; 51. Waterproof layer; 52. Fiber layer 1; 53. Filter tube; 54. Steel cable 1; 55. Fiber layer 2; 56. Fiber layer 3; 57. Steel cable 2; 58. Fiber layer 4; 59. Fiber layer 5; 60. Aluminum foil layer; 62. Support rod; 63. Steel cable 3. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0029] Example

[0030] Please combine Figure 1-8 ,

[0031] A thixotropic early warning device for monitoring deformation of surrounding rock at a tunnel portal section comprises: a support bar 01, which is fixedly arranged on the ground, an auxiliary mechanism is connected inside the support bar 01, the support bar 01 supports the bottom and performs auxiliary work through the auxiliary mechanism; a support arc 05, which is provided with a plurality of support arcs 05, the plurality of support arcs 05 are interconnected, the two support arcs 05 located at the bottom are connected to the support bar 01, an actuator is connected inside the support arc 05, the plurality of support arcs 05 form an arc shape of the portal for support and stability, and the actuator performs execution work; an extender 02, which is arranged in a rock formation, one end of the extender 02 is connected to the support arc 05, and the other end of the extender 02 is connected to a limiter 03 located in the rock formation, the extender 02 extends and stabilizes while performing necessary work, and the limiter 03 performs further limitation and measurement.

[0032] The auxiliary mechanism includes: a volume chamber 16, which is arranged in the support bar 01, and the volume chamber 16 is connected to the actuator, and a controller 13, which is arranged in the support bar 01, and a cable 14 located in the support bar 01 is arranged on one side of the controller 13, and a speaker 15 located in the support bar 01 is arranged on one side of the cable 14. The volume chamber 16 conducts the water flow, the speaker 15 gives a sound warning, and the cable 14 conducts electricity. The controller 13 is an existing mechanism, which realizes data processing and corresponding signal transmission.

[0033] The actuator includes: a limiting sleeve 26, which is provided with two, the limiting sleeve 26 is fixedly connected to the support arc 05, the bottom of the limiting sleeve 26 is fixedly connected to the sensor 1 23, one side of the sensor 1 23 is fixedly connected to the uniform plate, one side of the uniform plate is fixedly connected to the spring 24, and the follower block 25 is slidably sleeved with the limiting sleeve 26, the follower block 25 is fixedly connected to the spring 24, and one end of the follower block 25 is fixedly connected to the contact plate 09 located outside the support arc 05. The limiting sleeve 26 is limited, and at the same time cooperates with the work of the spring 24, so that the follower block 25 and the contact plate 09 have a tendency to move outward. At the same time, the sensor 23 measures the pressure. The clamping sleeve 21 is fixedly connected to the outside of the support arc 05. One side of the clamping sleeve 21 is connected to a connecting unit. The clamping sleeve 21 is limited. The connecting unit performs necessary connections. The conducting pipe 22 is connected to the connecting unit, and the other end of the conducting pipe 22 is connected to an arc tube 27. Two adjacent arc tubes 27 are connected to each other. The conducting pipe 22 is conducted, so that water passes through the clamping box 20 and the conducting pipe 22 and enters the arc tube 27, and further enters the volume chamber 16 to achieve discharge, thereby reducing the water content in the rock formation.

[0034] The connection unit includes: a card box 20, which is card-connected with a card sleeve 21, the card box 20 is connected to the support arc 05 by bolts, the card box 20 and the card sleeve 21 cooperate to achieve partial limitation, and at the same time, the stable limitation of the card box 20 is ensured by bolts, a stabilizing sleeve 18, which is arranged in the card box 20, the stabilizing sleeve 18 is threadedly connected to the extender 02, the stabilizing sleeve 18 is bolted to ensure the connection of the extender 02, a sensor 5 19, which is provided in plurality, the sensor 5 19 is located on the outside of the card box 20, the sensor 5 19 measures the pressure, a sensor group 17, which is fixedly connected to the card box 20, and the sensor Group 17 is located in the card-joined box 20, and the sensor group 17 measures the internal water flow and water pressure. The stabilizing sleeve 2 38 is sleeved on the outside of the extender 02. The stabilizing sleeve 2 38 is connected to the receiving box 34. One side of the receiving box 34 is fixedly connected with multiple leakage pipes 2 35 connected to the card-joined box 20. The receiving box 34 is fixedly connected with sensor 2 36 and sensor 3 37. The stabilizing sleeve 1 18 is in contact with the stabilizing sleeve 2 38. The stabilizing sleeve 2 38 is fixed for the second time to ensure the limitation of the extender 02. At the same time, the internal water enters the receiving box 34 and is then discharged into the card-joined box 20 through the leakage pipe 2 35 to achieve conduction.

[0035] A sealing plug 04 is clamped on the inner side of the supporting arc 05, a clamping block is fixedly connected to one side of the supporting arc 05, and a clamping groove is connected to the other side of the supporting arc 05. The clamping blocks and clamping grooves on two adjacent supporting arcs 05 are connected. The sealing plug 04 facilitates operation inside the supporting arc 05, and the cooperation between the clamping groove and the clamping block ensures the connection of the supporting arc 05.

[0036] Mounting grooves are provided on both sides of the support arc 05, and connecting plates 08 are clamped in the mounting grooves. The connecting plates 08 are fixedly connected to the support arc 05 by bolts. The coordination between the mounting grooves and the connecting plates 08 ensures the stability of the connection of the support arc 05.

[0037] The extender 02 includes an outermost rubber layer 50, a waterproof layer 51 and a fiber layer 1 52 are sleeved inside the rubber layer 50, a plurality of steel cables 1 54 are connected inside the fiber layer 1 52, a protective sheet 44 and a fiber layer 3 56 are sequentially connected to the side of the steel cable 1 54 away from the fiber layer 1 52, a plurality of steel cables 2 57 are connected to the inner side of the fiber layer 3 56, a fiber layer 4 58 is connected to one side of the steel cable 2 57, a plurality of steel cables 3 63 are connected to the fiber layer 4 58, a fiber layer 59 and an aluminum foil layer 60 are sequentially connected to the steel cable 3 63, a support rod 62 is fixedly connected to one side of the aluminum foil layer 60, an expansion tube 33 is connected to the other end of the support rod 62, a plurality of filter tubes 53 are connected to the rubber layer 50, and the filter tubes 53 are filled with There are heavy filter materials, the expansion tube 33 extends into the card box 20, the rubber layer 50 is limited and protected, the waterproof layer 51 is waterproof, the fiber layer 1 52 ensures fatigue strength, the fiber layer 1 52 provides the first tension support, the fiber layer 2 55 and the fiber layer 3 56 are separated and fatigue strength is guaranteed at the same time, the steel cable 2 57 provides the second tension support, the fiber layer 4 58 is separated and fatigue strength is guaranteed at the same time, the steel cable 3 63 provides the third tension support, the fiber layer 59 is isolated, the aluminum foil layer 60 is waterproof, the space inside the expansion tube 33 and the aluminum foil layer 60 provides a flow space for water flow, the filter tube 53 conducts water flow, and at the same time, the multiple filter materials in the temporal forehead are filtered to prevent the internal water and soil from being lost, thereby ensuring the stability of the rock formation, and filtering water at the same time to reduce the water content in the rock formation to ensure overall safety.

[0038] The limiter 03 includes: a fixed sleeve 31, one end of which is connected to an elastic ball 28, a camera 29 and an LED light 30 fixedly connected to the fixed sleeve 31 are arranged in the elastic ball 28, the fixed sleeve 31 is used for protection, the camera 29 is used for internal monitoring, and the LED light 30 is an auxiliary light source, a clamping plate 41 is clamped with the fixed sleeve 31, one side of the clamping plate 41 is rotatably connected to a plurality of rotating arcs 40, one side of the rotating arc 40 is rotatably connected to a telescopic rod 39 rotatably connected to the rubber layer 50, the input end of the telescopic rod 39 is connected to a conducting tube 2 32 extending into the expansion tube 33, one end of the expansion tube 33 is fixedly connected to the clamping plate 41, and the expansion tube 33 is fixedly connected to the clamping plate 41. One end of the tube 33 extends into the fixed sleeve 31, and the clamping plate 41 is better connected and fixed to the fixed sleeve 31 by bolts. The rotating arc 40 can be unfolded through the action of the telescopic rod 39, thereby realizing further limitation. There are multiple follower plates 42. The follower plates 42 are fixedly connected to the fixed sleeve 31. The outer side of the follower plate 42 is fixedly connected with a protective plate 44. The inner side of the follower plate 42 is fixedly connected with a sensor four 43 located in the fixed sleeve 31. The support box 45 is fixedly connected in the middle of the fixed sleeve 31. The support box 45 provides support and stability. The sensor four 43 detects pressure changes. The follower plate 42 can be deformed by pressure.

[0039] A plurality of barbs are fixedly connected to the rotating arc 40, a display screen 07 is arranged on the supporting arc 05, a discharge pipe 12 is connected to one side of the volume chamber 16, one end of the discharge pipe 12 is connected to the volume chamber 16, one end of the arc tube 27 at the bottom is connected to the volume chamber 16, and the subsequent limitation can be guaranteed by the barbs, the discharge pipe 12 is used for transportation, and the display screen 07 displays the information of each device in a single supporting arc 05, and changes the screen color at the same time to issue different warnings.

[0040] A sensor eight is connected to the bottom of the support bar 01, a touch screen is arranged on the support bar 01, a protective tube one is arranged in the support arc 05, a protective tube two is arranged on the outside of the expansion tube 33, wires are arranged in the protective tube for transmitting electricity and signals, the protective tube provides protection, and the touch screen performs touch operations.

[0041] The implementation principle of the embodiment of the present application is:

[0042] When working, holes are drilled around the rock mouth, and then the connected fixing sleeve 31 and the clamping plate 41 are extended into the hole through an external device, and then the fixing sleeve 31 is filled with high-pressure water through the expansion tube 33, so that the sensor 43 is deformed, contacts the protective sheet 44 and then contacts the surface of the rock formation to achieve limitation, and at the same time, the water pressure makes the telescopic rod 39 work, so that the rotating arc 40 rotates, and further limits it. At the same time, the expansion tube 33 expands, so that the support rod 62 is squeezed onto the aluminum foil layer 60 for support, and finally the valve is closed to maintain pressure, and the clamping box 20 is clamped in the surrounding rock formation, and the stabilizing sleeve 1 18, the stabilizing sleeve 2 38 and the discharge pipe 2 35 are installed at the same time to connect, and then the support arc 05 is clamped to the clamping box 20, and the clamping box 20 and the support arc 05 are fixed by bolts to achieve connection, and finally the connecting plate 08 is installed to achieve overall installation and fixation.

[0043] During the monitoring process, the camera 29 takes pictures of the internal rock formations to identify whether the rock formations are flat or meshed, so as to achieve early prediction. At the same time, the sensor five 19, the sensor one 23, the sensor three 37, the sensor two 36 and the sensor four 43 perform pressure detection at the corresponding positions. The data is then processed by the controller 13 and output to the background platform through the cable 14. The data is also output to the display screen 07 for display. By setting a certain value, the background color of the display screen 07 can be changed to achieve different warnings. At the same time, the speaker 15 gives a sound warning to ensure safety. At the same time, the internal water passes through the extender 02 and enters the card box 20, and is further discharged through the conducting pipe 22 and the volume chamber 16. During this process, the sensor group 17 senses the water temperature, flow and other information for comprehensive analysis.

[0044] After the movement of the rock formation occurs, the deformation of the rock formation can be slowed down by the limitation of the limiter 03, the dragging of the extender 02 and the support of the support arc 05. At the same time, the overall force of the rock formation is evenly distributed, the possibility of major dangers is reduced, and overall safety is ensured.

[0045] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A thixotropic early warning device for monitoring the deformation of surrounding rock at the tunnel entrance section, characterized in that: include: A support bar, which is fixedly arranged on the ground, and an auxiliary mechanism is connected inside the support bar; A plurality of support arcs are provided, the plurality of support arcs are connected to each other, the two support arcs at the bottom are connected to the support bars, and an actuator is connected and provided inside the support arcs; An extender is arranged in the rock formation, one end of the extender is connected to the support arc, and the other end of the extender is connected to a limiter located in the rock formation; The auxiliary mechanism includes: A volume chamber, which is arranged in the support bar, and the volume chamber is connected to the actuator; A controller is arranged in the support bar, a cable located in the support bar is arranged on one side of the controller, and a speaker located in the support bar is arranged on one side of the cable; The executive mechanism comprises: A limiting sleeve, two of which are provided, wherein the limiting sleeve is fixedly connected to the supporting arc, a sensor 1 is fixedly connected to the bottom of the limiting sleeve, a uniform plate is fixedly connected to one side of the sensor 1, and a spring is fixedly connected to one side of the uniform plate; A follower block is slidably connected with the limiting sleeve, the follower block is fixedly connected with the spring, and one end of the follower block is fixedly connected with a contact plate located outside the supporting arc; A clamping sleeve, which is fixedly connected to the outer side of the supporting arc, and one side of the clamping sleeve is connected to a connecting unit; A conducting pipe 1 is connected to the connecting unit, and the other end of the conducting pipe 1 is connected to an arc pipe, and two adjacent arc pipes are connected to each other; The qualifiers include: A fixed sleeve, one end of which is connected to an elastic ball, wherein a camera and an LED light fixedly connected to the fixed sleeve are arranged in the elastic ball; A clamping plate is clamped with the fixed sleeve, one side of the clamping plate is rotatably connected with a plurality of rotating arcs, one side of the rotating arc is rotatably connected with a telescopic rod rotatably connected with the rubber layer, the input end of the telescopic rod is connected with a second conducting tube extending into the expansion tube, one end of the expansion tube is fixedly connected with the clamping plate, and one end of the expansion tube extends into the fixed sleeve; A plurality of follower plates are provided, wherein the follower plates are fixedly connected to the fixed sleeve, a protective plate is fixedly connected to the outer side of the follower plates, and a sensor 4 located in the fixed sleeve is fixedly connected to the inner side of the follower plates; A support box, which is fixedly connected in the middle of the fixed sleeve; Among them, a plurality of barbs are fixedly connected to the rotating arc, a display screen is arranged on the supporting arc, a discharge pipe 1 is connected to one side of the volume cavity, one end of the discharge pipe 1 is connected to the volume cavity, and one end of the arc-shaped tube located at the bottom is connected to the volume cavity.

2. The thixotropic early warning device for monitoring the deformation of surrounding rock at the tunnel entrance section according to claim 1, characterized in that: The connecting unit comprises: A snap-in box, which is snap-fitted with the snap-in sleeve, and the snap-in box is connected to the support arc via bolts; A stabilizing sleeve 1, which is arranged in the card-joint box, and the stabilizing sleeve 1 is threadedly connected to the extender; Sensor 5, a plurality of which are provided, and the sensor 5 is located outside the card connection box; A sensor group, which is fixedly connected to the card connection box, and the sensor group is located in the card connection box; The stabilizing sleeve 2 is sleeved on the outside of the extender, and a receiving box is connected inside the stabilizing sleeve 2. A plurality of leakage pipes 2 connected to the card-connecting box are fixedly connected to one side of the receiving box, and a sensor 2 and a sensor 3 are fixedly connected inside the receiving box. The stabilizing sleeve 1 is in contact with the stabilizing sleeve 2.

3. The thixotropic early warning device for monitoring the deformation of surrounding rock at the tunnel entrance section according to claim 1, characterized in that: A sealing plug is clamped on the inner side of the support arc, a clamping block is fixedly connected to one side of the support arc, a clamping groove is connected to the other side of the support arc, and the clamping blocks and clamping grooves on two adjacent support arcs are connected.

4. The thixotropic early warning device for monitoring the deformation of surrounding rock at the tunnel entrance section according to claim 2, characterized in that: Mounting grooves are arranged on both sides of the support arc, connecting plates are clamped in the mounting grooves, and the connecting plates are fixedly connected to the support arc by bolts.

5. The thixotropic early warning device for monitoring the deformation of surrounding rock at the tunnel entrance section according to claim 1, characterized in that: The extender includes an outermost rubber layer, a waterproof layer and a fiber layer 1 are sleeved inside the rubber layer, a plurality of steel cables 1 are connected inside the fiber layer 1, a protective sheet and a fiber layer 3 are sequentially connected to the side of the steel cable 1 away from the fiber layer 1, a plurality of steel cables 2 are connected to the inner side of the fiber layer 3, a fiber layer 4 is connected to one side of the steel cable 2, a plurality of steel cables 3 are connected to the fiber layer 4, a fiber layer 5 and an aluminum foil layer are sequentially connected to the steel cable 3, a support rod is fixedly connected to one side of the aluminum foil layer, an expansion tube is connected to the other end of the support rod, a plurality of filter tubes penetrating the waterproof layer, the fiber layer 1, the fiber layer 2, the fiber layer 3, the fiber layer 5 and the aluminum foil layer are connected to the rubber layer, the filter tubes are filled with heavy filter materials, and the expansion tube extends into the card box.

6. The thixotropic early warning device for monitoring the deformation of surrounding rock at the tunnel entrance section according to claim 1, characterized in that: A sensor eight is connected to the bottom of the support bar, a touch screen is arranged on the support bar, a protection tube one is arranged in the support arc, and a protection tube two is arranged on the outer side of the expansion tube.

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