Tunnel construction concrete pouring air-raid shelter top crack prevention monitoring device
By using the laser feedback method of combining laser feedback of servo arc tracks and rebound instrument cores in tunnel construction, the problem of concrete strength detection is solved, real-time monitoring of concrete strength and multi-region detection is achieved, and construction quality and safety are ensured. .
Patent Information
- Application Number
- CN202420820418.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-19
AI Technical Summary
During the construction of existing tunnels, the strength of the concrete cannot be monitored in real time during the concrete pouring process, resulting in the inability to timely know the concrete strength when decracking may occur during the curing process.
The monitoring device including servo arc tracks and rebound meter core is used to detect the concrete strength through point laser feedback rebound distance, and multi-region monitoring is carried out through servo arc tracks to ensure whether there are hidden dangers in the concrete.
Real-time monitoring of concrete strength and multi-region detection are achieved, potential hidden dangers of concrete can be discovered in a timely manner, and construction quality and safety are improved.
Smart Images
Figure CN222280381U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tunnel construction, in particular to a top crack prevention monitoring device for pouring concrete air-raid shelters during tunnel construction. Background Art
[0002] The secondary lining is the cast concrete or reinforced concrete lining applied on the inner side of the primary support during tunnel construction, and together with the primary support, it forms a composite lining. Compared with the primary support, the secondary lining refers to the inner lining constructed with concrete and other materials under the condition that the tunnel has been initially supported, in order to achieve the functions of reinforcing support, optimizing the route drainage system, beautifying the appearance, and facilitating the installation of communication, lighting, monitoring and other facilities, ensuring the stability, safety and beauty of the tunnel in the later operation. It is also an engineering measure as a safety reserve to meet the requirements of modern highway tunnel construction. The existing patented arch anti-emptying monitoring system, patent disclosure CN218270655U includes a terminal device and a sensor assembly arranged on the arch geotextile, and the sensor assembly is arranged along the length and circumference of the arch. The terminal device is connected to the sensor assembly by wire or wirelessly, and the monitoring result of the sensor assembly can be displayed on the display of the terminal device. The sensor assembly includes a transmission cable and a plurality of contact displacement sensors, and the plurality of contact displacement sensors are arranged at intervals along the transmission cable; the transmission cable is arranged along the length direction of the arch. Compared with the prior art, the utility model arranges the sensor assembly on the geotextile of the arch, arranges the sensor assembly along the length direction and circumference of the arch, and uses the display of the terminal device to monitor the monitoring result of the sensor assembly in real time, which is used to monitor whether there is a degassing phenomenon during the concrete pouring and grouting with a mold, thereby improving the detection accuracy. The utility model can accurately judge whether the concrete pouring is full, and can realize the anti-degassing monitoring of the whole process of concrete pouring and grouting with a mold, and effectively ensure the construction quality of the secondary lining.
[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: although it is possible to monitor whether voiding occurs during concrete pouring and grouting with formwork, in the actual process, the concrete needs to be tested for strength during the curing process. When the concrete strength is too low, the concrete may crack, and the device cannot know the strength of the concrete. Therefore, we propose a tunnel construction concrete pouring air-raid shelter anti-top crack monitoring device to solve the above-mentioned problems. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a monitoring device for preventing top cracking of air-raid shelters during concrete pouring in tunnel construction, which solves the problem that the device cannot know the strength of concrete.
[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a tunnel construction concrete pouring air-raid shelter anti-top crack monitoring device, including a servo arc track and a rebound instrument core, and also includes a rebound instrument monitoring component arranged on one side of the servo arc track;
[0006] The rebound tester monitoring assembly includes a rebound tester seat arranged on one side of the servo arc track, a point laser arranged on one side of the servo arc track, and a pointer plate arranged on one side of the servo arc track; a first clamping seat is fixed on the top of the rebound tester seat, a first groove is provided on the surface of the first clamping seat, a second clamping seat is slidably connected to the top of the rebound tester seat, a second groove is provided on the surface of the second clamping seat, a rotating shaft seat is fixed to one side of the top of the rebound tester seat, a rotating block is rotatably connected to the central axis of the rotating shaft seat, a sliding block is slidably connected to the surface of the rotating block, the pointer plate is fixed to one end of the sliding block, and the point laser is fixed to the top of the rotating block.
[0007] Preferably, a mounting seat is fixed on one side of the servo arc track, two groups of sliding rod tracks are fixed on the top of the mounting seat, the outer surface of the sliding rod track is slidably connected with a sliding shaft block, a threaded block is fixed between the two groups of sliding shaft blocks, and the rebound tester seat is fixed on the top of the threaded block.
[0008] Preferably, a servo motor is fixed on the top of the mounting seat, a screw bearing seat is fixed on the top of the mounting seat, the central axis of the screw bearing seat is rotatably connected to a rotating screw, the central axis of the threaded block is provided with a threaded groove adapted to the rotating screw, and one end of the rotating screw is connected to the output end of the servo motor.
[0009] Preferably, the shape of the first groove is matched with the shape of the front end sliding shaft block of the rebound tester core, and the shape of the second groove is matched with the shape of the weight of the rebound tester core.
[0010] Preferably, the output end of the point laser irradiates the surface of the pointer plate.
[0011] Preferably, a block is fixed on the surface of the weight of the rebound tester core, a slot matched with the block is provided at the other end of the slider, a threaded groove connected to the slot is provided on one side of the block, and a fixing screw is connected to the internal thread of the threaded groove.
[0012] Preferably, a compression spring seat is fixed on the top of the mounting seat, a mounting thread groove is penetrated through the surface of the compression spring seat, an internal thread of the mounting thread groove is connected to a compression spring mounting block, and a compression spring piece is fixed to one side of the compression spring mounting block.
[0013] Beneficial Effects
[0014] The utility model provides a monitoring device for preventing top cracking of air-raid shelters during concrete pouring in tunnel construction. Compared with the prior art, it has the following beneficial effects:
[0015] The tunnel construction concrete pouring air-raid shelter anti-top crack monitoring device obtains the rebound position of the rebound instrument core through point laser, obtains the strength of concrete through the rebound distance fed back by the point laser, and performs multi-area monitoring through the servo arc track to know whether there are hidden dangers in the concrete. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the rebound tester monitoring component in the utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the rebound tester monitoring component after it is disassembled in the utility model;
[0019] Figure 4 It is a schematic structural diagram of the threaded block and its connecting parts in the utility model.
[0020] In the figure: 1. servo arc track; 2. rebound tester monitoring assembly; 21. rebound tester seat; 22. point laser; 23. pointer plate; 24. first clamping seat; 25. first groove; 26. second clamping seat; 27. shaft seat; 28. rotating block; 29. slider member; 201. mounting seat; 202. slide bar track; 203. slide shaft block; 204. threaded block; 205. servo motor; 206. screw bearing seat; 207. rotating screw; 208. second groove; 209. clamping block; 210. clamping groove; 211. fixing screw; 212. compression spring seat; 213. mounting threaded groove; 214. compression spring mounting block; 215. compression spring member; 3. rebound tester core. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-4 , the utility model provides a technical solution: a tunnel construction concrete pouring air-raid shelter anti-top crack monitoring device, comprising a servo arc track 1 and a rebound instrument core 3, and also comprising a rebound instrument monitoring component 2 arranged on one side of the servo arc track 1;
[0023] The rebound tester monitoring assembly 2 includes a rebound tester seat 21 arranged on one side of the servo arc track 1, a point laser 22 arranged on one side of the servo arc track 1, and a pointer plate 23 arranged on one side of the servo arc track 1; a first clamping seat 24 is fixed on the top of the rebound tester seat 21, a first groove 25 is provided on the surface of the first clamping seat 24, a second clamping seat 26 is slidably connected to the top of the rebound tester seat 21, a second groove 208 is provided on the surface of the second clamping seat 26, a rotating shaft seat 27 is fixed to one side of the top of the rebound tester seat 21, a rotating block 28 is rotatably connected to the central axis of the rotating shaft seat 27, a sliding block 29 is slidably connected to the surface of the rotating block 28, the pointer plate 23 is fixed to one end of the sliding block 29, and the point laser 22 is fixed to the top of the rotating block 28.
[0024] In this embodiment: the rebound position of the rebound tester core 3 is obtained by the point laser 22, the rebound distance fed back by the point laser 22 is used to obtain the strength of the concrete, and multi-area monitoring is performed by the servo arc track 1 to determine whether there are hidden dangers in the concrete.
[0025] See also Figure 1-4 A mounting seat 201 is fixed on one side of the servo arc track 1, two sets of slide rails 202 are fixed on the top of the mounting seat 201, a sliding shaft block 203 is slidably connected to the outer surface of the sliding rail track 202, a threaded block 204 is fixed between the two sets of sliding shaft blocks 203, and the rebound tester seat 21 is fixed on the top of the threaded block 204.
[0026] In this embodiment, the rebound test hammer seat 21 moves as a whole, and the rebound test hammer core 3 hits the concrete.
[0027] See also Figure 1-4 A servo motor 205 is fixed on the top of the mounting seat 201, a screw bearing seat 206 is fixed on the top of the mounting seat 201, the central axis of the screw bearing seat 206 is rotatably connected to a rotating screw 207, the central axis of the threaded block 204 is provided with a threaded groove adapted to the rotating screw 207, and one end of the rotating screw 207 is connected to the output end of the servo motor 205.
[0028] In this embodiment, the servo motor 205 drives the rotating screw to rotate, so that the threaded block 204 threadedly connected to the rotating screw moves along the track of the slide rail 202, so that the rebound tester seat 21 moves as a whole.
[0029] See also Figure 1-3 The shape of the first groove 25 matches the shape of the front end sliding shaft block 203 of the rebound test core 3 , and the shape of the second groove 208 matches the shape of the weight of the rebound test core 3 .
[0030] In this embodiment, when installing the rebound test core 3, the front end slide block 203 of the rebound test core 3 is clamped in the first clamping groove 210 of the first clamping seat 24, and the weight of the rebound test core 3 is clamped in the second clamping groove 210 of the second clamping seat 26.
[0031] See also Figure 1-3 , the output end of the point laser 22 irradiates the surface of the pointer plate 23.
[0032] In this embodiment: the rebound position of the rebound tester core 3 is obtained by the point laser 22, and the rebound distance fed back by the point laser 22 is used to obtain the strength of the concrete. The point laser 22 can be connected to the main control device.
[0033] See also Figure 1-3 A block 209 is fixed on the surface of the weight of the rebound tester core 3, and a slot 210 adapted to the block 209 is provided at the other end of the slider 29. A threaded groove connected to the slot 210 is provided on one side of the block 209, and a fixing screw 211 is connected to the internal thread of the threaded groove.
[0034] In this embodiment, the rotating block 28 is then rotated through the rotating shaft seat 27 so that the slot 210 of the slider 29 is aligned with the block 209 on the surface of the weight of the rebound tester core 3 and is fixed by the fixing screw 211 .
[0035] See also Figure 1-3 A compression spring seat 212 is fixed on the top of the mounting seat 201, and a mounting thread groove 213 is formed on the surface of the compression spring seat 212. The internal thread of the mounting thread groove 213 is connected to a compression spring mounting block 214, and a compression spring piece 215 is fixed to one side of the compression spring mounting block 214.
[0036] In this embodiment, the compression spring installation block 214 is installed inside the installation thread groove 213 of the compression spring seat 212, so that the compression spring member 215 abuts against the trigger member of the rebound tester core 3.
[0037] During operation, the arc servo track can be installed on the trolley. When installing the rebound test core 3, the front end sliding shaft block 203 of the rebound test core 3 is clamped in the first clamping groove 210 of the first clamping seat 24, the weight of the rebound test core 3 is clamped in the second clamping groove 210 of the second clamping seat 26, and the compression spring installation block 214 is installed inside the installation thread groove 213 of the compression spring seat 212, so that the compression spring member 215 is against the trigger member of the rebound test core 3, and then the rotating block 28 is rotated through the rotating shaft seat 27, so that the clamping groove 210 of the sliding block member 29 is aligned with the clamping block 209 on the weight surface of the rebound test core 3, and is fixed by the fixing screw 211, and the tunnel concrete is moved according to the moving distance of the servo arc track 1. Area division, then in one area, the servo motor 205 is driven to drive the rotating screw to rotate, so that the threaded block 204 connected to the rotating screw thread moves along the trajectory of the slide rail 202, so that the rebound tester seat 21 moves as a whole, and the rebound tester core 3 hits the concrete until the hammer moves to the trigger block. The servo motor 205 drives the rebound tester seat 21 to return to its original position, and the hammer rebounds. During the rebound process, the slider 29 is driven to slide, so that the position of the pointer plate 23 moves. At this time, the point laser 22 feeds back the distance of the pointer plate 23, and the concrete strength of the area is obtained according to the carbonization value of the concrete. By performing multi-area detection, it can be found out whether there are hidden dangers in the concrete.
[0038] In summary, the rebound position of the rebound tester core 3 is obtained by the point laser 22, the rebound distance fed back by the point laser 22 is used to obtain the strength of the concrete, and multi-area monitoring is performed by the servo arc track 1 to determine whether there are hidden dangers in the concrete.
[0039] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
Claims
1. A monitoring device for preventing top cracking of concrete cast air-raid shelters in tunnel construction, comprising a servo arc track (1) and a rebound test instrument core (3), characterized in that: It also includes a rebound tester monitoring component (2) arranged on one side of the servo arc track (1); The rebound tester monitoring assembly (2) comprises a rebound tester seat (21) arranged on one side of the servo arc track (1), a point laser (22) arranged on one side of the servo arc track (1), and a pointer plate (23) arranged on one side of the servo arc track (1); a first clamping seat (24) is fixed on the top of the rebound tester seat (21), a first groove (25) is provided on the surface of the first clamping seat (24), a second clamping seat (26) is slidably connected to the top of the rebound tester seat (21), a second groove (208) is provided on the surface of the second clamping seat (26), a rotating shaft seat (27) is fixed on one side of the top of the rebound tester seat (21), a rotating block (28) is rotatably connected to the central axis of the rotating shaft seat (27), a sliding block (29) is slidably connected to the surface of the rotating block (28), the pointer plate (23) is fixed to one end of the sliding block (29), and the point laser (22) is fixed to the top of the rotating block (28).
2. The device for monitoring the top cracking of a tunnel construction concrete casting air-raid shelter according to claim 1, characterized in that: A mounting seat (201) is fixed on one side of the servo arc track (1), two groups of slide rails (202) are fixed on the top of the mounting seat (201), the outer surface of the slide rail track (202) is slidably connected with a slide shaft block (203), a threaded block (204) is fixed between the two groups of the slide shaft blocks (203), and the rebound tester seat (21) is fixed on the top of the threaded block (204).
3. The device for monitoring the top cracking of a tunnel construction concrete casting air-raid shelter according to claim 2, characterized in that: A servo motor (205) is fixed on the top of the mounting seat (201), a screw bearing seat (206) is fixed on the top of the mounting seat (201), the central axis of the screw bearing seat (206) is rotatably connected to a rotating screw (207), the central axis of the threaded block (204) is provided with a thread groove adapted to the rotating screw (207), and one end of the rotating screw (207) is connected to the output end of the servo motor (205).
4. The device for monitoring the top cracking of a tunnel construction concrete casting air-raid shelter according to claim 1, characterized in that: The shape of the first groove (25) is adapted to the shape of the front end sliding shaft block (203) of the rebound test core (3), and the shape of the second groove (208) is adapted to the shape of the weight of the rebound test core (3).
5. The device for monitoring the top cracking of a tunnel construction concrete casting air-raid shelter according to claim 1, characterized in that: The output end of the point laser (22) irradiates the surface of the pointer plate (23).
6. The device for monitoring the top cracking of a tunnel construction concrete casting air-raid shelter according to claim 1, characterized in that: A block (209) is fixed on the surface of the weight of the rebound test core (3); a slot (210) adapted to the block (209) is provided at the other end of the slider (29); a threaded groove connected to the slot (210) is provided on one side of the block (209); a fixing screw (211) is connected to the internal thread of the threaded groove.
7. The device for monitoring the top cracking of a tunnel construction concrete casting air-raid shelter according to claim 2, characterized in that: A compression spring seat (212) is fixed on the top of the mounting seat (201), a mounting thread groove (213) is provided through the surface of the compression spring seat (212), the internal thread of the mounting thread groove (213) is connected to a compression spring mounting block (214), and a compression spring piece (215) is fixed to one side of the compression spring mounting block (214).