Roadway surrounding rock surface displacement monitoring system
By setting up cover films and interactive blocks on the surface of the foot rock in the corner area of the tunnel turntree, combined with the sand filling simulation technology of the sand blasting box, the problem of difficulty in monitoring the surface displacement and deformation of the foot rock in the corner area of the tunnel turntree in the existing technology is solved, and efficient and accurate monitoring effect is achieved.
Patent Information
- Application Number
- CN202411786307.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-03-14
AI Technical Summary
The prior art is difficult to effectively monitor the displacement and deformation of the foot rock surface in the corner area of the tunnel turntable, resulting in poor monitoring effect.
By setting up a covering film to cover the surface of the foot surrounding rock from the outside, combining interactive blocks and sandblasting boxes, the deformation of the foot surrounding rock in the foot surrounding rock is monitored, and solid simulation is carried out by filling sand to monitor the surface displacement of the foot surrounding rock in the corner area of the tunnel turntable in real time.
Real-time and accurate monitoring of the surface displacement and deformation of the foot rock at the corner area of the tunnel turntable is achieved, and the monitoring effect and accuracy are improved.
Smart Images
Figure CN119618029A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of tunnel monitoring, and in particular to a tunnel surrounding rock surface displacement monitoring system. Background Art
[0002] The surface displacement monitoring of the tunnel surrounding rock monitors the roof subsidence, bottom bulge and single-wall displacement, and analyzes the state and stability of the tunnel surrounding rock based on the monitoring results to ensure the safe use of the tunnel surrounding rock. The bottom bulge monitoring of the tunnel surrounding rock is completed in a fixed area through a radar ranging monitor installed on the top of the tunnel. The tunnels are connected in all directions, and the footing surrounding rock in the corner area of the tunnel fork is not completely in a complete tunnel. The two parts of the footing surrounding rock in the corner area of the tunnel fork are respectively in the tunnel and the fork. Due to the irregular state of the end face of the footing surrounding rock, the position of the two parts of the footing surrounding rock and the mutual shielding, the fixed-point radar ranging monitor cannot effectively monitor the real-time status of the footing surrounding rock in each area of the tunnel fork corner area, and at the same time, it is impossible for the staff to intuitively obtain the deformation and status data of the footing surrounding rock, which affects the measurement of the bottom bulge deformation of the footing surrounding rock as a whole or a certain area in the corner area of the tunnel fork, and affects the monitoring effect of the surface displacement of the footing surrounding rock in the corner area of the tunnel fork. Summary of the invention
[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a tunnel surrounding rock surface displacement monitoring system, which covers the surface of the footing surrounding rock from the outside by setting a covering film, and the footing surrounding rock undergoes bottom bulging deformation, causing the covering film to be deformed by force, and cooperates with the interactive block to move in the area where the fixed-point monitoring head and the deformation displacement monitoring head are located to monitor whether the footing surrounding rock undergoes bottom bulging deformation. When the footing surrounding rock in the monitoring area undergoes bottom bulging deformation, the sandblasting box controls the release nozzle corresponding to the area to release filling sand into the fixed-shaped space where the bottom bulging deformation occurs, so as to prompt the surface displacement of the tunnel surrounding rock, and at the same time effectively perform a state entity simulation of the surface displacement part of the tunnel surrounding rock in the area, divide the footing surrounding rock in the tunnel fork corner area into regions, and perform independent or simultaneous deformation state monitoring on the divided areas, so as to effectively monitor the surface displacement and deformation data of the footing surrounding rock in the tunnel fork corner area in real time, so as to solve the problems raised in the above-mentioned background technology.
[0004] To achieve the above object, the present invention provides the following technical solutions:
[0005] A tunnel surrounding rock surface displacement monitoring system comprises a footing fixed point plate, a footing surrounding rock covering module is arranged inside the footing fixed point plate, the footing surrounding rock covering module comprises a covering film and a fixing frame, the covering film is controlled by the footing fixed point plate and the fixing frame to cover the footing surrounding rock surface from the outside; a plurality of separation deformation modules are arranged inside the footing fixed point plate, the separation deformation module comprises a fixed shell, an adjustment block, a fixed plate and a deformation pressing block, the fixed plate and the deformation pressing block move inside the fixed shell through the adjustment block, the deformation pressing block is forced to move toward the inner wall of the footing fixed point plate to adapt to the bottom drum deformation of the footing surrounding rock driven by The covering film is deformed, a bottom drum deformation monitoring module is provided on the top of the fixed shell, and the bottom drum deformation monitoring module comprises a monitoring frame, a fixed-point monitoring head, a deformation displacement monitoring head and a matching interaction block, and the matching interaction block moves in the area where the fixed-point monitoring head and the deformation displacement monitoring head are located in a front and rear position to monitor the bottom drum deformation of the base surrounding rock; a plurality of shaped spaces are formed between the base fixed-point plate, the base surrounding rock covering module and the separation deformation module, and a sandblasting box is provided on the top of the base fixed-point plate, and the sandblasting box controls and releases filling sand into the shaped space to materialize the measurement of the bottom drum deformation of the base surrounding rock.
[0006] Furthermore, since the base fixing plate and the base surrounding rock covering module are separated by a plurality of the partitioning and deformation modules, a plurality of the shaping spaces for the filling sand to enter and be shaped are formed, and the inner side wall of the base fixing plate is fixedly connected to two cover plates distributed up and down, and the cover plate at the lower position fills the interval space between the base fixing plate and the partitioning and deformation modules from below, so that the shaping space can effectively complete the entry and temporary storage of the filling sand, and the partitioning and deformation modules and the bottom drum deformation monitoring module are both located on the inner sides of the two cover plates, ensuring that the filling sand sinks and is shaped in the designated shaping space, and the cover plate at the lower position can effectively complete the entry and temporary storage of the filling sand, and the partitioning and deformation modules and the bottom drum deformation monitoring module are both located on the inner sides of the two cover plates, so as to ensure that the filling sand sinks and is shaped in the designated shaping space, and the cover plate at the lower position can effectively complete the entry and temporary storage of the filling sand, and the filling sand can effectively enter and be shaped in the designated shaping space ... The cover plate at the position can follow the footing fixed point plate into the footing pit in the area where the footing surrounding rock is located. The cover plate at the lower position is close to the bottom of the pit, so that the footing fixed point plate can stand stably on the outside of the footing surrounding rock. The sandblasting box is fixedly connected to the top of the cover plate at the upper position, and the sandblasting box is stably positioned and connected above the shaped space. The multiple release nozzles on the sandblasting box correspond to several shaped spaces, so as to effectively release filling sand into the designated shaped spaces, so that the footing surrounding rock in the corner area of the tunnel fork will undergo bottom drum deformation in the designated area, completing the state entity simulation and data measurement.
[0007] Furthermore, since the covering film is positioned on the inner side of the base fixed point plate by the fixing frame, the fixing frame is fixedly connected to the inner side wall of the base fixed point plate, the top and bottom of the covering film are fixedly connected with cross beams, and the cross beams are fixedly connected to the fixing frame, so as to stably connect the covering film to the fixing frame to position the covering film on the outside of the base surrounding rock in the corner area of the tunnel fork, the deformation of the cross beam enables the cross beam to stick to the surface of the base surrounding rock, so that the covering film effectively covers the surface of the base surrounding rock in the corner area of the tunnel fork from the outside, and the covering film is positioned at the displaced part of the base surrounding rock.
[0008] Furthermore, since the adjustment block moves on the inner side of the fixed shell, the fixed shell is fixedly connected to the inner wall of the base fixing plate, and the adjustment block is slidably connected to the inside of the fixed shell, the adjustment block can move smoothly between the base fixing plate and the covering film through the fixed shell, allowing the adjustment block to approach the base fixing plate.
[0009] Furthermore, since the fixed plate moves in position following the adjusting block, the fixed plate is located between the adjusting block and the covering film, a connecting ball head is fixedly connected to the outer side wall of the fixed plate, a connecting ball groove is opened on the side of the adjusting block corresponding to the fixed plate, the connecting ball head is movably connected inside the connecting ball groove, and the fixed plate is connected to the part of the adjusting block located outside the fixed shell through the connecting ball head, so that when the adjusting block moves, the fixed plate can move in position following the adjusting block, so that the fixed plate approaches the base fixed plate and changes the range of the corresponding fixed space, and the connecting ball head rotates on the connecting ball groove, so that the fixed plate can change a certain angle on the adjusting block to adapt to the bottom drum deformation of the corresponding area on the base surrounding rock, so that the adjusting block can still maintain a stable state and approach the base fixed plate.
[0010] Furthermore, since the deformable pressure block deforms and moves in position following the deformation of the covering film under stress, the deformable pressure block is fixedly connected to the inner wall of the fixed plate, and the other side of the deformable pressure block is fixedly connected to the outer surface of the covering film, so that the deformable pressure block can move toward the inner wall of the base fixed plate under stress to adapt to the stress deformation of the covering film from the inside, allowing the covering film to adapt to the bottom drum deformation of the surrounding rock at the base of the tunnel fork.
[0011] Furthermore, two side diaphragms are fixedly connected to the surface of the adjustment block, and the side diaphragms are fixedly connected to the surface of the fixed plate, so that the shaping space is in a complete state, allowing the filling sand to sink and shape effectively in the shaping space, thereby preventing the filling sand from entering the interval space between the adjustment block and the fixed plate.
[0012] Furthermore, the monitoring frame is fixedly connected to the top of the fixed shell, the fixed-point monitoring head and the deformation displacement monitoring head are fixedly connected to the inner side of the monitoring frame one after the other, and the matching interaction block is fixedly connected to the top of the fixed plate, so that the matching interaction block can be driven by the fixed plate to move in the area where the fixed-point monitoring head and the deformation displacement monitoring head are located. After the matching interaction block moves from the area where the fixed-point monitoring head is located to the area where the deformation displacement monitoring head is located, the bottom surrounding rock of the corresponding monitoring area undergoes bottom drum deformation, and the sandblasting box controls the release nozzle corresponding to the area to release filling sand into the fixed space where the bottom drum deformation occurs, and at the same time, performs a state entity simulation of the surface displacement part of the roadway surrounding rock in the area while providing a prompt for the surface displacement of the roadway surrounding rock, so as to complete the surface displacement data monitoring of the bottom surrounding rock in the roadway fork corner area.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] The present invention sets a footing fixed point plate standing on the outside of the footing surrounding rock in the corner area of the tunnel fork, so that the covering film can effectively cover the surface of the footing surrounding rock from the outside, and multiple separation deformation modules connect different areas of the covering film. The footing surrounding rock undergoes bottom bulging deformation, causing the covering film to deform under force, and the deformation pressing block is forced to approach the footing fixed point plate, thereby achieving the effect of changing the state of the covering film in the bottom bulging deformation area and the corresponding fixed shape space range, and cooperating with the interactive block to move in the area where the fixed point monitoring head and the deformation displacement monitoring head are located to monitor whether the footing surrounding rock undergoes bottom bulging deformation, and the footing of the monitoring area When the surrounding rock undergoes bottom drum deformation, the sandblasting box controls the release nozzles in the corresponding area to release filling sand into the shaped space where the bottom drum deformation occurs, prompts the surface displacement of the tunnel surrounding rock, and effectively simulates the state of the surface displacement part of the tunnel surrounding rock in this area, divides the bottom surrounding rock in the corner area of the tunnel fork into regions, and monitors the deformation state of the divided areas independently or simultaneously, which can effectively monitor the surface displacement and deformation data of the bottom surrounding rock in the corner area of the tunnel fork in real time, and improve the monitoring effect of the surface displacement of the bottom surrounding rock in the corner area of the tunnel fork. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solution in the embodiment, the drawings in the embodiment are briefly introduced below.
[0016] Figure 1 It is a structural schematic diagram of the present invention;
[0017] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;
[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention from the side;
[0019] Figure 4 It is a schematic diagram of the partially separated structure of the present invention;
[0020] Figure 5 It is a structural schematic diagram of the separation deformation module in the present invention;
[0021] In the figure: 1. Base fixed point plate; 11. Cover plate; 2. Base surrounding rock covering module; 21. Covering membrane; 211. Crossbeam; 22. Fixed frame; 3. Partition deformation module; 31. Fixed shell; 32. Adjustment block; 321. Side diaphragm; 322. Connecting ball groove; 33. Fixed plate; 331. Connecting ball head; 34. Deformation pressure block; 4. Bottom drum deformation monitoring module; 41. Monitoring frame; 42. Fixed point monitoring head; 43. Deformation displacement monitoring head; 44. Cooperating interaction block; 5. Shaping space; 6. Sandblasting box. DETAILED DESCRIPTION
[0022] The following is a clear and complete description of the technical solution in the embodiment of the present invention in conjunction with the accompanying drawings in the embodiment of the present invention. Figures 1 to 5 The detailed description of the structure will clearly show that the structural contents mentioned in the following embodiments are all based on the drawings in the specification.
[0023] See also Figure 1 to Figure 5 In an embodiment of the present invention, a tunnel surrounding rock surface displacement monitoring system includes a footing fixed point plate 1, a footing surrounding rock covering module 2 is arranged inside the footing fixed point plate 1, the footing surrounding rock covering module 2 includes a covering film 21 and a fixing frame 22, the covering film 21 is controlled by the footing fixed point plate 1 and the fixing frame 22 to cover the surface of the footing surrounding rock from the outside, a plurality of partition deformation modules 3 are arranged inside the footing fixed point plate 1, the partition deformation module 3 includes a fixed shell 31, an adjusting block 32, a fixed plate 33 and a deformation pressing block 34, the fixed plate 33 and the deformation pressing block 34 are movable inside the fixed shell 31 through the adjusting block 32, and the deformation pressing block 34 is forced to move toward the inner wall of the footing fixed point plate 1 to adapt to the footing surrounding rock surface. The deformation of the rock bottom drum drives the deformation of the covering film 21. A bottom drum deformation monitoring module 4 is provided on the top of the fixed shell 31. The bottom drum deformation monitoring module 4 includes a monitoring frame 41, a fixed-point monitoring head 42, a deformation displacement monitoring head 43 and a matching interaction block 44. The matching interaction block 44 moves in the area where the fixed-point monitoring head 42 and the deformation displacement monitoring head 43 are located in a front and rear position to monitor the bottom drum deformation of the base surrounding rock. A number of shaping spaces 5 are formed between the base fixed-point plate 1, the base surrounding rock covering module 2 and the separation deformation module 3. A sandblasting box 6 is provided on the top of the base fixed-point plate 1. The sandblasting box 6 controls and releases the filling sand into the shaping space 5 to measure the deformation of the base surrounding rock in a physical way.
[0024] The footing fixed point plate 1 is used to connect the footing surrounding rock covering module 2 and the separation deformation module 3. The footing surrounding rock covering module 2 is arranged on the inner side of the footing fixed point plate 1. The footing fixed point plate 1 is fixedly erected on the outer side of the footing surrounding rock in the corner area of the roadway fork, so that the footing surrounding rock covering module 2 can be positioned on the outer side of the footing surrounding rock in the corner area of the roadway fork. The footing surrounding rock covering module 2 is composed of a covering film 21 and a fixing frame 22. The top and bottom of the covering film 21 are fixedly connected with a crossbeam 211, and the crossbeam 211 is fixedly connected to the fixing frame 22, so that the covering film 21 is stably connected to the fixing frame 22. The fixing frame 22 is fixedly connected to the inner side wall of the footing fixed point plate 1, so that the covering film 21 is positioned on the inner side of the footing fixed point plate 1 through the fixing frame 22, and the covering film 21 is positioned on the outer side of the footing surrounding rock in the corner area of the roadway fork after the footing fixed point plate 1 is fixed. The crossbeam 211 is also located on the outside of the footing surrounding rock. The deformation of the crossbeam 211 allows the crossbeam 211 to stick to the surface of the footing surrounding rock. The covering membrane 21 protrudes from the crossbeam 211, so that the covering membrane 21 can effectively cover the surface of the footing surrounding rock in the corner area of the tunnel fork from the outside, and position the covering membrane 21 at the displaced part of the footing surrounding rock.
[0025] A plurality of partition deformation modules 3 are arranged on the inner side of the foot fixing plate 1. The partition deformation modules 3 are composed of a fixed shell 31, an adjustment block 32, a fixed plate 33 and a deformation pressing block 34. The fixed plate 33 and the deformation pressing block 34 are movable on the inner side of the fixed shell 31 through the adjustment block 32. The fixed shell 31 is fixedly connected to the inner side wall of the foot fixing plate 1, and the adjustment block 32 is slidably connected inside the fixed shell 31, so that the adjustment block 32 can move smoothly between the foot fixing plate 1 and the covering film 21 through the fixed shell 31, so as to achieve the effect of flexibly changing the position of the adjustment block 32, so that the adjustment block 32 can be smoothly close to the foot fixing plate 1. The fixed plate 33 moves with the adjustment block 32, and the fixed plate 33 is located between the adjustment block 32 and the covering film 21. A connecting ball head 331 is fixedly connected to the outer side wall of the fixed plate 33, and a connecting ball groove 322 is provided on the side of the adjustment block 32 corresponding to the fixed plate 33, and the connecting ball head 331 is movably connected inside the connecting ball groove 322. The fixed plate 33 is connected to the part of the adjustment block 32 located outside the fixed shell 31 by connecting the ball head 331, so that when the adjustment block 32 moves, the fixed plate 33 can move with the adjustment block 32, so that the fixed plate 33 moves between the base fixed plate 1 and the covering film 21 to approach the base fixed plate 1. Several shaped spaces 5 are formed between the base fixed plate 1, the base surrounding rock covering module 2 and the separation deformation module 3, so that the range of the corresponding shaped space 5 can be changed. The connecting ball head 331 rotates on the connecting ball groove 322, so that the fixed plate 33 can change a certain angle on the adjustment block 32 to adapt to the bottom drum deformation of the corresponding area on the base surrounding rock, so that the adjustment block 32 can still maintain a stable state and approach the base fixed plate 1. The deformable pressing block 34 is fixedly connected to the inner wall of the fixed plate 33, and the other side of the deformable pressing block 34 is fixedly connected to the outer surface of the covering film 21, so that the deformable pressing block 34 can be moved toward the inner wall of the base fixed plate 1 under force, and the deformable pressing block 34 deforms and moves along with the deformed covering film 21 under force to adapt to the force deformation of the covering film 21 from the inside, so that the covering film 21 can adapt to the bottom drum deformation of the surrounding rock at the base of the tunnel fork.
[0026] Two side diaphragms 321 are fixedly connected to the surface of the adjusting block 32, and the side diaphragms 321 are fixedly connected to the surface of the fixing plate 33, so that the shaping space 5 is in a complete state, allowing the filling sand to sink and shape effectively in the shaping space 5, avoiding the filling sand from entering the interval space between the adjusting block 32 and the fixing plate 33, so as to ensure the normal operation of the partition deformation module 3.
[0027] A bottom drum deformation monitoring module 4 is provided on the top of the fixed shell 31, and the bottom drum deformation monitoring module 4 is composed of a monitoring frame 41, a fixed-point monitoring head 42, a deformation displacement monitoring head 43 and a matching interaction block 44. The monitoring frame 41 is fixedly connected to the top of the fixed shell 31, and the fixed-point monitoring head 42 and the deformation displacement monitoring head 43 are fixedly connected to the inner side of the monitoring frame 41 one after the other, so that the fixed-point monitoring head 42 and the deformation displacement monitoring head 43 are positioned one after the other above the fixed plate 33 through the monitoring frame 41. The matching interaction block 44 is fixedly connected to the top of the fixed plate 33, so that the matching interaction block 44 can be driven by the fixed plate 33 to move in the area where the fixed-point monitoring head 42 and the deformation displacement monitoring head 43 are located, effectively changing the position of the matching interaction block 44. The matching interaction block 44 is positioned in the area where the fixed-point monitoring head 42 is located, and the surrounding rock of the bottom foot of the corresponding monitoring area is considered to be in a normal state, and no bottom drum deformation occurs. When the deformation pressing block 34 and the fixed plate 33 are forced to move toward the base fixed plate 1, the interactive block 44 moves from the area where the fixed-point monitoring head 42 is located to the area where the deformation displacement monitoring head 43 is located. After the interactive block 44 moves to the area where the deformation displacement monitoring head 43 is located, the base surrounding rock in the corresponding monitoring area is observed to undergo bottom drum deformation, thereby effectively monitoring the surface displacement of the base surrounding rock in the corner area of the tunnel fork in real time to monitor the bottom drum deformation of the base surrounding rock.
[0028] The footing fixed point plate 1 and the footing surrounding rock covering module 2 are separated by a number of partitioning deformation modules 3 to form a number of shaping spaces 5 for filling sand to enter and shape. The inner wall of the footing fixed point plate 1 is fixedly connected to two cover plates 11 distributed up and down. The cover plate 11 at the lower position fills the interval space between the footing fixed point plate 1 and the partitioning deformation module 3 from the bottom, allowing the shaping space 5 to effectively complete the entry and temporary storage of the filling sand. The partitioning deformation module 3 and the bottom drum deformation monitoring module 4 are both located on the inner side of the two cover plates 11 to ensure that the filling sand sinks and shapes in the designated shaping space 5. The cover plate 11 at the lower position can follow the footing fixed point plate 1 to enter the footing pit in the area where the footing surrounding rock is located. The cover plate 11 at the lower position is close to the bottom of the pit, so that the footing fixed point plate 1 can stand stably on the outside of the footing surrounding rock. A sandblasting box 6 is provided on the top of the footing fixed point plate 1. The sandblasting box 6 is fixedly connected to the top of the cover plate 11 at the upper position, and the sandblasting box 6 is stably positioned and connected above the shaping space 5. The multiple release nozzles on the sandblasting box 6 correspond to several shaping spaces 5, so as to effectively release the filling sand into the designated shaping space 5, so that the footing surrounding rock in the corner area of the tunnel fork will undergo the designated area of the bottom drum deformation, thereby completing the state entity simulation and data measurement.
[0029] The covering film 21 effectively covers the surface of the footing surrounding rock in the corner area of the roadway fork from the outside, and multiple separation deformation modules 3 connect different areas of the covering film 21, and separate multiple shaped spaces 5 for filling sand to enter between the footing fixed point plate 1 and the covering film 21. The footing surrounding rock undergoes bottom drum deformation, causing the covering film 21 to deform under force, and the deformation pressing block 34 is forced to move closer to the footing fixed point plate 1, achieving the effect of changing the state of the covering film 21 in the bottom drum deformation area and the range of the corresponding shaped space 5. The interaction block 44 moves in the area where the fixed-point monitoring head 42 and the deformation displacement monitoring head 43 are located to monitor whether the footing surrounding rock has bottom drum deformation. The interaction block 44 moves from the area where the fixed-point monitoring head 42 is located to the area where the deformation displacement monitoring head 43 is located, and the footing surrounding rock undergoes surface displacement to cause bottom drum deformation. The sandblasting box 6 controls the release nozzle corresponding to the area to release the filling sand into the shaping space 5 where the bottom drum deformation occurs. The filling sand fills each area of the shaping space 5, and the filling sand presses the covering film 21 on the surface of the footing surrounding rock from the outside. The filling sand sinks and takes shape in the shaping space 5, prompts the surface displacement of the tunnel surrounding rock, and effectively simulates the state of the surface displacement part of the tunnel surrounding rock in this area. Multiple separation deformation modules 3 and shaping spaces 5 realize the regional division of the footing surrounding rock in the corner area of the tunnel fork, and independently or simultaneously monitors the deformation state of the divided areas, which can effectively monitor the surface displacement and deformation data of the footing surrounding rock in the corner area of the tunnel fork in real time, improve the monitoring accuracy of the surface displacement of the footing surrounding rock in the corner area of the tunnel fork, and improve the working efficiency.
[0030] The working principle of the present invention is as follows: the footing fixed point plate 1 is fixed to the outside of the footing surrounding rock in the corner area of the roadway fork, and the covering film 21 covers the surface of the footing surrounding rock in the corner area of the roadway fork from the outside. The footing surrounding rock undergoes bottom drum deformation, causing the covering film 21 to deform under force. The deformation pressing block 34 is forced to move closer to the footing fixed point plate 1, changing the state of the covering film 21 in the bottom drum deformation area and the range of the corresponding fixed space 5, and cooperating with the interactive block 44 to move from the area where the fixed point monitoring head 42 is located to the area where the deformation displacement monitoring head 43 is located. Domain, after the interactive block 44 stops moving, the sandblasting box 6 controls the release nozzle corresponding to the area to release filling sand into the shaping space 5 where the bottom drum deformation occurs, and the filling sand fills each area of the shaping space 5. The filling sand presses the covering film 21 on the surface of the bottom surrounding rock from the outside, and the filling sand sinks and takes shape in the shaping space 5, prompting the surface displacement of the tunnel surrounding rock. At the same time, the state of the surface displacement part of the tunnel surrounding rock in this area is simulated, and the surface displacement and deformation data of the bottom surrounding rock in the corner area of the tunnel fork are monitored in real time.
[0031] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A tunnel surrounding rock surface displacement monitoring system, comprising a footing fixed point plate (1), characterized in that: A footing surrounding rock covering module (2) is provided on the inner side of the footing fixed point plate (1), and the footing surrounding rock covering module (2) comprises a covering film (21) and a fixing frame (22), and the covering film (21) is controlled by the footing fixed point plate (1) and the fixing frame (22) to cover the surface of the footing surrounding rock from the outside; A plurality of partition deformation modules (3) are arranged inside the footing fixed point plate (1), and the partition deformation module (3) comprises a fixed shell (31), an adjustment block (32), a fixed plate (33) and a deformation pressing block (34). The fixed plate (33) and the deformation pressing block (34) move inside the fixed shell (31) through the adjustment block (32), and the deformation pressing block (34) is forced to move toward the inner wall of the footing fixed point plate (1) to adapt to the bottom drum deformation zone of the surrounding rock of the footing. The movable covering film (21) is deformed, a bottom drum deformation monitoring module (4) is provided on the top of the fixed shell (31), the bottom drum deformation monitoring module (4) comprises a monitoring frame (41), a fixed-point monitoring head (42), a deformation displacement monitoring head (43) and a matching interaction block (44), the matching interaction block (44) moves in the area where the fixed-point monitoring head (42) and the deformation displacement monitoring head (43) are located in a front-rear position, so as to monitor the bottom drum deformation of the surrounding rock of the footing; A plurality of shaped spaces (5) are formed between the footing fixed point plate (1), the footing surrounding rock covering module (2) and the separation deformation module (3), and a sandblasting box (6) is provided on the top of the footing fixed point plate (1). The sandblasting box (6) controls and releases filling sand into the shaped spaces (5) to measure the bottom drum deformation of the footing surrounding rock in a physical manner.
2. A tunnel surrounding rock surface displacement monitoring system according to claim 1, characterized in that: The inner side wall of the base fixing plate (1) is fixedly connected to two cover plates (11) distributed up and down, the partition deformation module (3) and the bottom drum deformation monitoring module (4) are both located inside the two cover plates (11), and the sandblasting box (6) is fixedly connected to the top of the cover plate (11) at the upper position.
3. A tunnel surrounding rock surface displacement monitoring system according to claim 1, characterized in that: The fixing frame (22) is fixedly connected to the inner wall of the base fixing plate (1), the top and bottom of the covering film (21) are both fixedly connected to a crossbeam (211), and the crossbeam (211) is fixedly connected to the fixing frame (22).
4. A tunnel surrounding rock surface displacement monitoring system according to claim 1, characterized in that: The fixed shell (31) is fixedly connected to the inner wall of the base fixed point plate (1), and the adjustment block (32) is slidably connected to the inside of the fixed shell (31).
5. The tunnel surrounding rock surface displacement monitoring system according to claim 1, characterized in that: The fixing plate (33) is located between the adjusting block (32) and the covering film (21); a connecting ball head (331) is fixedly connected to the outer wall of the fixing plate (33); a connecting ball groove (322) is provided on the side of the adjusting block (32) corresponding to the fixing plate (33); and the connecting ball head (331) is movably connected inside the connecting ball groove (322).
6. A tunnel surrounding rock surface displacement monitoring system according to claim 1, characterized in that: The deformable pressing block (34) is fixedly connected to the inner wall of the fixing plate (33), and the other side of the deformable pressing block (34) is fixedly connected to the outer surface of the covering film (21).
7. A tunnel surrounding rock surface displacement monitoring system according to claim 1, characterized in that: Two side diaphragms (321) are fixedly connected to the surface of the adjustment block (32), and the side diaphragms (321) are fixedly connected to the surface of the fixing plate (33).
8. The tunnel surrounding rock surface displacement monitoring system according to claim 1, characterized in that: The monitoring frame (41) is fixedly connected to the top of the fixed shell (31), the fixed-point monitoring head (42) and the deformation displacement monitoring head (43) are fixedly connected to the inner side of the monitoring frame (41) one after the other, and the matching interaction block (44) is fixedly connected to the top of the fixed plate (33).