Deep foundation pit ground surface settlement measuring device

Abstract

The utility model discloses a deep foundation pit ground surface settlement measuring device, which relates to the technical field of foundation pit settlement and comprises a ground surface datum plate, a laser receiver and a laser transmitter are mounted outside the ground surface datum plate, and the bottom surface of the ground surface datum plate is fixedly connected with a support rod. According to the utility model, the design structure is reasonable, through the cooperation among the ground surface datum plate, the laser emitter, the laser receiver, the supporting rod and the connecting mechanism, the laser structure device can receive laser emitted by the laser emitter on another same device which is 50 meters away from the ground surface datum plate, and when the ground surface is settled, the laser receiver can receive the laser emitted by the laser emitter. When settlement occurs, the connecting structure, the supporting rod and the earth surface datum plate are driven to sink together, so that the laser receiver within the collapse range cannot receive laser emitted by the laser emitter, and constructors can be informed in advance within the range with the controllable degree before collapse is caused by settlement; and the problem that the settlement is developed to be incapable of emergency repair due to unmanned perception or neglected management is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit settlement, in particular to a deep foundation pit surface settlement measuring device. Background Art

[0002] A deep foundation pit refers to an engineering project with an excavation depth of more than 5 meters (including 5 meters), or a project with a depth of less than 5 meters but with particularly complex geological conditions, surrounding environment and underground pipelines. When the surface of the deep foundation pit subsides, it will cause landslides. Due to the deformation of the surrounding soil and the migration of stress, deep foundation pits often lead to surrounding ground subsidence, house deformation and other problems. In severe cases, it may even cause ground damage.

[0003] At present, the existing settlement measurement for deep foundation pits is all manual on-site measurement, which requires a third-party testing agency to measure on-site, but this kind of measurement cannot be carried out all day long. The main problem of settlement accidents is that the settlement develops to the point where it cannot be repaired due to lack of perception or poor management in the early stage. To this end, we provide a deep foundation pit surface settlement measurement device to solve the above problems. Utility Model Content

[0004] 1) Technical issues solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a deep foundation pit surface settlement measuring device.

[0006] 2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a deep foundation pit surface settlement measuring device, comprising a surface reference plate, a laser receiver and a laser transmitter are installed on the outside of the surface reference plate, a support rod is fixedly connected to the bottom surface of the surface reference plate, and a connecting mechanism is arranged on the outside of the support rod.

[0008] Furthermore, the outer surface of the surface reference plate is fixedly connected with support rod one and support rod two, and the surface reference plate is fixedly connected with a standard plate between support rod one and support rod two, and the outer surface of the standard plate is engraved with a crosshair according to the direction.

[0009] Furthermore, the top end of the support rod 1 is fixedly connected to a supporting plate 1, the outer surface of the supporting plate 1 is fixedly connected to a rain shelter frame, and the laser receiver and the laser transmitter are both installed on the supporting plate 1 inside the rain shelter frame.

[0010] Furthermore, the top end of the second support rod is fixedly connected to the second support plate, the outer surface of the second support plate is fixedly connected to the mounting frame, the outer surface of the mounting frame is installed with a buzzer, and the outer surface of the second support plate is installed with a warning light.

[0011] Furthermore, the connection mechanism includes a first protective tube and a second protective tube, the outer surfaces of the first protective tube and the second protective tube are in close contact with the outer surface of the support rod, and the inner sides of the first protective tube and the second protective tube are provided with an inner groove 1.

[0012] Furthermore, flange 1 and flange 2 are provided on the outer surface of the support rod, the outer surface of flange 1 is in close contact with the inner surface of inner groove 1, and the bottom surfaces of casing 1 and casing 2 are fixedly connected with expansion frames.

[0013] Furthermore, a connecting tube is provided on the bottom surface of the expansion frame, and the inner wall of the connecting tube is in close contact with the outer surface of the second flange.

[0014] 3) Beneficial effects:

[0015] Compared with the prior art, the deep foundation pit surface settlement measuring device has the following beneficial effects:

[0016] 1. The utility model cooperates between the ground surface reference plate, the laser transmitter, the laser receiver, the support rod and the connecting mechanism. The ground surface reference plate can be closely attached to the ground surface, the laser transmitter can emit a cross laser, and the laser structure can receive the laser emitted by the laser transmitter on another identical device 50 meters away. When the ground subsides, it will drive the connecting structure, the support rod and the ground surface reference plate to sink together, so that the laser receiver in the collapsed range cannot receive the laser emitted by the laser transmitter, so that the on-duty personnel can be warned at the first time and the detailed location of the laser receiver that cannot receive the laser can be displayed. The equipment can operate unmanned 24 hours a day, so that the construction personnel can be informed in advance within a controllable range before the subsidence causes a landslide, thereby solving the problem of subsidence developing to the point where emergency repairs are impossible due to lack of perception or negligence in management.

[0017] 2. The utility model cooperates between the rain shelter, the laser receiver and the laser transmitter. The rain shelter can shield the laser receiver and the laser transmitter from sunlight and rain, thereby reducing the impact of weather on the laser receiver and the laser transmitter. A central control chip is installed inside the rain shelter located between the laser receiver and the laser transmitter, and an antenna is installed outside the rain shelter. When the laser receiver cannot receive the laser, a signal will be sent to the central control chip. The central control chip can communicate with other central control chips through the local area network. When it is known that only one laser receiver cannot operate, it will wait for twelve hours to reduce the possibility of false alarms. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the load-bearing plate 1 and its accessories of the utility model;

[0020] Figure 3 This is a schematic diagram of the second load-bearing plate and its accessory mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of the overall explosion structure of the connecting mechanism of the utility model.

[0022] In the figure: 1. Surface reference plate; 2. Laser receiver; 3. Laser transmitter; 4. Support rod; 5. Connecting mechanism; 501. Casing 1; 502. Casing 2; 503. Inner groove 1; 506. Expansion frame; 507. Connecting tube; 6. Support rod 1; 7. Support rod 2; 8. Standard plate; 9. Crosshair; 10. Support plate 1; 11. Rainproof frame; 12. Support plate 2; 13. Mounting frame; 14. Buzzer; 15. Warning light; 16. Flange 1; 17. Flange 2. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figure 1-4 As shown, the utility model provides a technical solution: a deep foundation pit surface settlement measuring device, comprising a surface reference plate 1, a laser receiver 2 and a laser transmitter 3 are installed on the outside of the surface reference plate 1, a support rod 4 is fixedly connected to the bottom surface of the surface reference plate 1, and a connecting mechanism 5 is arranged on the outside of the support rod 4, the surface reference plate 1 can be close to the surface, the laser transmitter 3 can emit a cross laser, and the laser receiver 2 can receive the laser emitted by the laser transmitter 3 on another identical device 50 meters away. When the surface settles, it will drive the connecting structure, the support rod 4 and the surface reference plate 1 to sink together, so that the laser receiver 2 in the collapsed range cannot receive the laser emitted by the laser transmitter 3, so that the on-duty personnel can be warned at the first time and the detailed position of the laser receiver 2 that cannot receive the laser can be displayed. The device can operate unmanned 24 hours a day, so that the construction personnel can be informed in advance within a controllable range before the settlement causes a landslide, thereby solving the problem that the settlement develops to the point where it cannot be repaired due to lack of perception or negligence in management.

[0025] The outer surface of the surface reference plate 1 is fixedly connected with a support rod 1 6 and a support rod 2 7. The surface reference plate 1 is fixedly connected with a standard plate 8 between the support rod 1 6 and the support rod 2 7. The outer surface of the standard plate 8 is engraved with a crosshair 9 according to the direction. When installing the support rod 1 6 and the support rod 2 7, they can be installed according to the direction of the crosshair 9. The crosshair 9 is mainly designed in the directions of east, west, south and north, mainly to facilitate the identification of the direction and source direction of settlement or collapse.

[0026] The top of the support rod 6 is fixedly connected to a carrier plate 10, and the outer surface of the carrier plate 10 is fixedly connected to a rain shield frame 11. The laser receiver 2 and the laser transmitter 3 are both installed on the carrier plate 10 inside the rain shield frame 11. The rain shield frame 11 can shield the laser receiver 2 and the laser transmitter 3 from sunlight and rain, thereby reducing the impact of weather on the laser receiver 2 and the laser transmitter 3. A central control chip is installed inside the rain shield frame 11 between the laser receiver 2 and the laser transmitter 3, and an antenna is installed outside the rain shield frame 11. When the laser receiver 2 cannot receive the laser, it will send a signal to the central control chip. The central control chip can communicate with other central control chips through the local area network. When it is known that only one laser receiver 2 cannot operate, it will wait for twelve hours to reduce the possibility of false alarms.

[0027] The top of the support rod 2 7 is fixedly connected to a bearing plate 2 12, the outer surface of the bearing plate 2 12 is fixedly connected to a mounting frame 13, the outer surface of the mounting frame 13 is installed with a buzzer 14, the outer surface of the bearing plate 2 12 is installed with a warning light 15, the bearing plate can provide support for the buzzer 14 and the warning light 15 through the mounting frame 13, when settlement and landslide occur, the warning light 15 will flash, when no one answers for more than three hours, the buzzer 14 will start working to remind the construction workers in the deep foundation pit to evacuate in time.

[0028] The connecting mechanism 5 includes a casing 501 and a casing 502. The outer surfaces of the casing 501 and the casing 502 are in close contact with the outer surface of the support rod 4. The inner sides of the casing 501 and the casing 502 are provided with an inner groove 503. The casing 501 and the casing 502 can tightly hold the support rod 4 through bolts, so that when the soil layer moves, the support rod 4 can be driven to tilt.

[0029] The outer surface of the support rod 4 is provided with a flange 16 and a flange 2 17, the outer surface of the flange 16 is in close contact with the inner surface of the inner groove 1 503, the bottom surfaces of the casing 1 501 and the casing 2 502 are fixedly connected with an expansion frame 506, the support rod 4 can be tightly clamped together with the casing 1 501 and the casing 2 502 through the flange 16, and the expansion frame 506 can be penetrated into the soil layer, so that when the soil layer moves, the expansion frame 506 can be driven to move in time.

[0030] A connecting tube 507 is provided on the bottom surface of the expansion frame 506, and the inner wall of the connecting tube 507 is in close contact with the outer surface of the flange 2 17. The connecting tube 507 is tightly clamped together with the flange 2 17 and the support rod 4 by bolts, so that the entire mechanism can be tightly fixed together with the support rod 4, and it is also easy to disassemble.

[0031] Working principle: When the equipment is needed, first bury the support rod 4 and the connecting mechanism 5 into the soil layer according to the depth of the foundation pit, and bury the same equipment at a distance of fifty meters and extend to the edge of the deep foundation pit, then turn on the laser transmitter 3, the laser transmitter 3 can aim the emitted cross laser at the laser receiver 2, and then when the underground soil layer settles and shifts, it can drive the connecting mechanism 5 to move slightly, so that the support rod 1 6 and the support rod 2 7 on the surface tilt together, and the tilt of the support rod 1 6 will drive the laser receiver 2 to deviate from the parallel line position of the laser emitted by the original laser generator, and then the laser receiver 2 will alarm the central control chip, and the laser receiver 2 can send a suspected obstruction signal to the central console of the on-duty personnel. When no one responds for more than three hours, the central control chip will activate the buzzer 14 to remind the construction personnel in the deep foundation pit to evacuate in time.

Claims

1. A deep foundation pit surface settlement measuring device, comprising a surface reference plate (1), characterized in that: A laser receiver (2) and a laser transmitter (3) are installed on the outside of the surface reference plate (1), a support rod (4) is fixedly connected to the bottom surface of the surface reference plate (1), and a connecting mechanism (5) is arranged on the outside of the support rod (4).

2. A deep foundation pit surface settlement measuring device according to claim 1, characterized in that: The outer surface of the surface reference plate (1) is fixedly connected to a support rod 1 (6) and a support rod 2 (7); the surface reference plate (1) is fixedly connected to a standard plate (8) between the support rod 1 (6) and the support rod 2 (7); the outer surface of the standard plate (8) is engraved with a crosshair (9) according to the direction.

3. A deep foundation pit surface settlement measuring device according to claim 2, characterized in that: The top end of the support rod 1 (6) is fixedly connected to a bearing plate 1 (10), the outer surface of the bearing plate 1 (10) is fixedly connected to a rain shield frame (11), and the laser receiver (2) and the laser transmitter (3) are both installed on the bearing plate 1 (10) and located inside the rain shield frame (11).

4. A deep foundation pit surface settlement measuring device according to claim 2, characterized in that: The top end of the second support rod (7) is fixedly connected to a second bearing plate (12), the outer surface of the second bearing plate (12) is fixedly connected to a mounting frame (13), the outer surface of the mounting frame (13) is installed with a buzzer (14), and the outer surface of the second bearing plate (12) is installed with a warning light (15).

5. The deep foundation pit surface settlement measuring device according to claim 1, characterized in that: The connecting mechanism (5) comprises a first protective tube (501) and a second protective tube (502), the outer surfaces of the first protective tube (501) and the second protective tube (502) are in close contact with the outer surface of the support rod (4), and the inner sides of the first protective tube (501) and the second protective tube (502) are provided with an inner groove (503).

6. A deep foundation pit surface settlement measuring device according to claim 5, characterized in that: The outer surface of the support rod (4) is provided with a flange 1 (16) and a flange 2 (17), the outer surface of the flange 1 (16) is in close contact with the inner surface of the inner groove 1 (503), and the bottom surfaces of the protective tube 1 (501) and the protective tube 2 (502) are fixedly connected with an expansion frame (506).

7. A deep foundation pit surface settlement measuring device according to claim 6, characterized in that: The bottom surface of the expansion frame (506) is provided with a connecting tube (507), and the inner wall of the connecting tube (507) is in close contact with the outer surface of the second flange (17).

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