Monitoring device for soil layer settlement in geotechnical engineering construction

Abstract

The utility model discloses a monitoring device for soil layer settlement in geotechnical engineering construction, which belongs to the technical field of detection and comprises a detection box, an inner cavity of the detection box is rotatably connected with a winding shaft through a bearing, a winding drum is fixed on the outer side of the winding shaft, a traction rope is wound on the outer side of the winding drum, and the traction rope is fixed on the inner cavity of the detection box. One end of the traction rope extends downwards to penetrate through the outer side of the detection box and is fixedly provided with a balancing weight; the driving motor drives the winding shaft and the winding drum to release the traction rope, so that the balancing weight moves downwards, whether the balancing weight touches the bottom or not is detected through the pressure sensor, meanwhile, the driving motor is turned off, and the balancing weight is driven to move downwards. The driving motor is prevented from continuously releasing the traction rope, then the monitoring equipment shoots the scale value on the traction rope, then the soil layer settlement value is obtained through data on the front side and the rear side, manual participation is not needed in the whole measurement process, and the accuracy of data measurement is improved.

Description

Technical Field

[0001] The utility model relates to the field of detection technology, in particular to a monitoring device for soil settlement in geotechnical engineering construction. Background Art

[0002] Under the load of the building, the foundation soil is compressed and causes vertical deformation or sinking. Uniform settlement generally does little harm to the building, but when it is too large, it will also reduce the elevation of the building and affect its use; uneven settlement is more harmful to the building, causing additional stress in the building and causing cracks, or even partial component fractures, endangering the safety of the building. Settlement should be estimated when designing the foundation.

[0003] In the prior art, the Chinese utility model with publication number: CN215984499U discloses a monitoring device for soil layer settlement in geotechnical engineering construction, including a monitoring device, a protective layer installed on the inner surface of the monitoring device, a hand-held device installed at both ends of the top of the monitoring device, an observation box installed inside the monitoring device, an observation port installed on the top of the observation box, a protective box installed inside the observation box, a wire-releasing box installed inside the protective box, a soft rope installed at the bottom of the wire-releasing box, a connecting block installed at the bottom of the soft rope, and a settlement block installed at the bottom of the connecting block. The utility model is provided with a telescopic cylinder, a telescopic rod, a stabilizing block, an anti-skid layer, a limiting device, a limiting spring and a limiting block, which can meet the function of positioning monitoring of different sizes of detection wells, avoid the limitation of the use of the monitoring device due to the difficulty in adapting to detection wells of different sizes for monitoring, thereby reducing the utilization rate of the monitoring device.

[0004] In the above technical solution, a rubber block is used to fix the soft rope by friction, and then the settlement block is moved downward to detect the settlement of the soil layer in the detection well. The device lacks a device for detecting the settlement block, and cannot accurately determine whether the settlement block is in contact with the soil layer, resulting in an inability to control the retraction and release of the soft rope, and it is impossible to accurately judge by the naked eye. Utility Model Content

[0005] The purpose of the utility model is to provide a monitoring device for soil settlement in geotechnical engineering construction. The counterweight block is towed by a traction rope, and then a pressure sensor is used to detect whether the counterweight block contacts the soil layer. When the counterweight block contacts the soil layer, an electrical signal is sent out, and the controller receives the electrical signal of the pressure sensor, and then controls the monitoring equipment to shoot the scale line on the traction rope and record the depth. The whole process is completed automatically, avoiding manual participation, and can improve accuracy to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a monitoring device for soil settlement in geotechnical engineering construction, comprising a detection box, the inner cavity of the detection box is rotatably connected to a winding shaft through a bearing, a winding drum is fixed to the outside of the winding shaft, a traction rope is wound around the outside of the winding drum, one end of the traction rope extends downwardly through the outside of the detection box and is fixed to a counterweight block;

[0007] Also included is a pressure sensor installed at the bottom of the counterweight block, used to detect whether the counterweight block is in contact with the settled soil;

[0008] The monitoring device installed at the bottom of the inner cavity of the detection box is used to record the length of the traction rope;

[0009] The traction rope adjustment component arranged in the inner cavity of the detection box facilitates the retraction and release of the traction rope, and is neatly wound on the outside of the reel.

[0010] Preferably, the adjusting assembly includes an adjusting roller that rotates in the inner cavity of the detection box through a bearing, a driving gear is fixed to the outer side of the winding shaft, and a driven gear is fixed to the outer side of the adjusting roller, the driving gear and the driven gear are meshed with each other on the opposite sides, a movable plate is movably arranged under the winding drum, a through hole is opened at the center of the movable plate, the traction rope is located in the inner cavity of the through hole, the side of the movable plate close to the adjusting roller is rotatably connected to a connecting rod through a bearing, a shuttle block is fixed to the end of the connecting rod away from the movable plate, a guide groove is provided on the surface of the adjusting roller, the shuttle block extends to the inner cavity of the guide groove and is slidably connected to the inner cavity of the guide groove.

[0011] Preferably, a sliding hole is opened at the center of the movable plate, and a limit rod is slidably provided in the inner cavity of the sliding hole. The limit rod is fixed to the inner cavity of the detection box and is used to position the movable plate to ensure that the movable plate is flush with the height of the adjustment roller.

[0012] Preferably, a driving motor is fixed to the outside of the detection box, and the output shaft of the driving motor passes through the inner cavity of the detection box and is fixedly connected to one end of the winding shaft.

[0013] Preferably, a limiting frame is fixed on one side of the inner cavity of the detection box, and the movable plate extends from a side away from the shuttle block to the inner cavity of the limiting frame and is slidably connected to the limiting frame.

[0014] Preferably, a fixing tube is fixed to the bottom of the inner cavity of the detection box, the fixing tube is sleeved on the outside of the traction rope, and a shooting port corresponding to the monitoring equipment is opened at the bottom of the fixing tube.

[0015] Preferably, the traction rope includes an outer stretch-resistant insulating skin and an inner conductive wire connected to a pressure sensor, and scale lines are arranged on the outer side of the insulating skin.

[0016] Preferably, a control box is provided in the inner cavity of the detection box, a control circuit board is provided in the control box, and the control circuit board is electrically connected to the drive motor, the pressure sensor and the monitoring device respectively.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model drives the winding shaft and the winding drum by a driving motor to release the traction rope, so that the counterweight block moves downward, and uses a pressure sensor to detect whether the counterweight block touches the bottom, and at the same time turns off the driving motor to prevent the driving motor from continuing to release the traction rope. The monitoring device then takes a picture of the scale value on the traction rope, and then obtains the soil settlement value through the data on the front and rear sides. No human intervention is required in the entire measurement process, thereby improving the accuracy of data measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the winding drum and the adjusting roller of the utility model;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the movable plate and the limiting frame of the utility model;

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the traction rope of the utility model.

[0024] Numbers in the figure: 1. Detection box; 2. Take-up shaft; 3. Take-up drum; 4. Traction rope; 41. Insulation skin; 42. Wire; 43. Scale line; 5. Counterweight; 6. Pressure sensor; 7. Monitoring equipment; 8. Adjustment assembly; 81. Adjustment roller; 82. Driving gear; 83. Driven gear; 84. Movable plate; 85. Through hole; 86. Shuttle block; 87. Guide groove; 9. Limit rod; 10. Driving motor; 11. Limit frame; 12. Fixed tube; 13. Shooting port. DETAILED DESCRIPTION

[0025] 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.

[0026] The utility model provides Figures 1 to 5The device for monitoring soil settlement during geotechnical engineering construction shown in the figure comprises a detection box 1, the inner cavity of the detection box 1 is rotatably connected to a winding shaft 2 through a bearing, a winding drum 3 is fixed to the outer side of the winding shaft 2, a traction rope 4 is wound around the outer side of the winding drum 3, one end of the traction rope 4 extends downward through the outer side of the detection box 1 and is fixed to a counterweight 5; it also comprises a pressure sensor 6 installed at the bottom of the counterweight 5, which is used to detect whether the counterweight 5 is in contact with the settled soil; a monitoring device 7 installed at the bottom of the inner cavity of the detection box 1, which is used to record the length of the traction rope 4; a traction rope 4 adjustment component 8 arranged in the inner cavity of the detection box 1, which is convenient for retracting and releasing the traction rope 4 and winding it neatly around the outer side of the winding drum 3;

[0027] The drive motor 10 drives the winding shaft 2 and the winding drum 3 to release the traction rope 4, so that the counterweight 5 moves downward, and the pressure sensor 6 is used to detect whether the counterweight 5 touches the bottom. At the same time, the drive motor 10 is turned off to prevent the drive motor 10 from continuing to release the traction rope 4, and then the monitoring device 7 takes a picture of the scale value on the traction rope 4, and then the soil settlement value is obtained through the data on the front and rear sides. No human intervention is required in the entire measurement process, thereby improving the accuracy of data measurement.

[0028] The adjusting assembly 8 includes an adjusting roller 81 which rotates in the inner cavity of the detection box 1 through a bearing, a driving gear 82 is fixed to the outer side of the winding shaft 2, and a driven gear 83 is fixed to the outer side of the adjusting roller 81, and the driving gear 82 and the driven gear 83 are meshed with each other on the opposite sides. A movable plate 84 is movably arranged below the winding drum 3, and a through hole 85 is opened at the center of the movable plate 84. The traction rope 4 is located in the inner cavity of the through hole 85, and the side of the movable plate 84 close to the adjusting roller 81 is rotatably connected with a connecting rod through a bearing, and a shuttle block 86 is fixed to the end of the connecting rod away from the movable plate 84, and a guide groove 87 is provided on the surface of the adjusting roller 81. The shuttle block 86 extends to the inner cavity of the guide groove 87 and is slidably connected with the inner cavity of the guide groove 87. Through the setting of the adjusting assembly 8, it is convenient to orderly retract and release the traction rope 4 during the process of retracting and releasing the traction rope 4, and the traction rope 4 is concentrated above the fixed tube 12.

[0029] A sliding hole is opened at the center of the movable plate 84, and a limit rod 9 is slidably set in the inner cavity of the sliding hole. The limit rod 9 is fixed to the inner cavity of the detection box 1, and is used to position the movable plate 84 to ensure that the movable plate 84 is flush with the height of the adjusting roller 81. The movable plate 84 can be limited by the limit rod 9 to ensure that the movable plate 84 is flush with the adjusting roller 81. Through the rotation of the adjusting roller 81, the shuttle block 86 slides in the guide groove 87, driving the movable plate 84 to move forward and backward, automatically adjusting the traction rope 4, and neatly retracting and releasing it.

[0030] A driving motor 10 is fixed to the outside of the detection box 1. The output shaft of the driving motor 10 passes through the inner cavity of the detection box 1 and is fixedly connected to one end of the winding shaft 2. The driving motor 10 can drive the winding shaft 2 to reel in and release the traction rope 4, and the traction rope 4 is used to adjust the position of the counterweight 5.

[0031] A limit frame 11 is fixed on one side of the inner cavity of the detection box 1, and the side of the movable plate 84 away from the shuttle block 86 extends to the inner cavity of the limit frame 11 and is slidably connected to the limit frame 11. The movable plate 84 can be further limited by the limit frame 11 to prevent the shuttle block 86 from sliding in the guide groove 87, causing the movable plate 84 to shake and affecting the stability of the movable plate 84.

[0032] A fixed tube 12 is fixed to the bottom of the inner cavity of the detection box 1, and the fixed tube 12 is sleeved on the outside of the traction rope 4. A shooting port 13 corresponding to the monitoring device 7 is opened at the bottom of the fixed tube 12. Through the setting of the fixed tube 12, the traction rope 4 can be limited to ensure the vertical lifting of the traction rope 4 in the fixed tube 12, and the shooting port 13 is used to facilitate recording of the scale value.

[0033] The traction rope 4 includes an outer stretch-resistant insulating skin 41 and an internal wire 42 connected to the pressure sensor 6. A scale line 43 is arranged on the outer side of the insulating skin 41. Through the setting of the structure of the traction rope 4, it is convenient to transmit the signal of the pressure sensor 6 through a wired connection to ensure the stability of the signal transmission. At the same time, the stretchable insulating skin 41 can protect the wire 42 to prevent the traction rope 4 from being stretched, resulting in inaccurate data detection.

[0034] The inner cavity of the detection box 1 is provided with a control box, and a control circuit board is provided in the control box. The control circuit board is electrically connected to the drive motor 10, the pressure sensor 6 and the monitoring device 7 respectively. Through the setting of the control box, the detection process is automated and the accuracy of data collection is improved.

[0035] During specific use, the detection box 1 is fixed above the position where the soil settlement needs to be measured, and then the equipment is started. The control box controls the driving motor 10 to rotate, and the driving motor 10 drives the winding drum 3 to rotate through the winding shaft 2 to release the traction rope 4. At the same time, the winding shaft 2 drives the adjusting roller 81 to rotate through the driving gear 82 and the driven gear 83, and then the adjusting roller 81 drives the movable plate 84 to move forward and backward through the guide groove 87 and the shuttle block 86, so that the traction rope 4 passes through the fixed tube 12 and is released downward. The counterweight block 5 contacts the soil during the downward movement. At this time, the pressure sensor 6 is triggered, and the pressure sensor 6 generates an electrical signal, which is transmitted to the control box through the wire 42. Then the control box turns off the driving motor 10 and controls the monitoring device 7 to take a picture of the scale line 43 on the traction rope 4 and record the depth. By comparing the data before and after settlement, the settlement data can be obtained.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A monitoring device for soil settlement in geotechnical engineering construction, characterized in that: include: A detection box (1), wherein the inner cavity of the detection box (1) is rotatably connected to a reel (2) via a bearing, a reel (3) is fixed to the outside of the reel (2), a traction rope (4) is wound around the outside of the reel (3), and one end of the traction rope (4) extends downwardly through the outside of the detection box (1) and is fixed to a counterweight (5); It also includes a pressure sensor (6) installed at the bottom of the counterweight (5) for detecting whether the counterweight (5) is in contact with the settled soil; A monitoring device (7) installed at the bottom of the inner cavity of the detection box (1) and used to record the length of the traction rope (4); The traction rope (4) adjustment component (8) arranged in the inner cavity of the detection box (1) facilitates the retraction and release of the traction rope (4) and is neatly wound on the outer side of the reel (3).

2. A monitoring device for soil settlement in geotechnical engineering construction according to claim 1, characterized in that: The adjusting assembly (8) comprises an adjusting roller (81) which rotates in the inner cavity of the detection box (1) through a bearing, a driving gear (82) is fixed on the outer side of the winding shaft (2), a driven gear (83) is fixed on the outer side of the adjusting roller (81), the driving gear (82) and the driven gear (83) are meshed with each other on the sides facing each other, a movable plate (84) is movably arranged below the winding drum (3), a through hole (85) is opened at the center of the movable plate (84), the traction rope (4) is located in the inner cavity of the through hole (85), a connecting rod is rotatably connected to the side of the movable plate (84) close to the adjusting roller (81) through a bearing, a shuttle block (86) is fixed to the end of the connecting rod away from the movable plate (84), a guide groove (87) is arranged on the surface of the adjusting roller (81), and the shuttle block (86) extends to the inner cavity of the guide groove (87) and is slidably connected to the inner cavity of the guide groove (87).

3. A monitoring device for soil settlement in geotechnical engineering construction according to claim 2, characterized in that: A sliding hole is provided at the center of the movable plate (84), and a limit rod (9) is slidably provided in the inner cavity of the sliding hole. The limit rod (9) is fixed to the inner cavity of the detection box (1) and is used to position the movable plate (84) to ensure that the movable plate (84) is flush with the height of the adjustment roller (81).

4. The device for monitoring soil settlement during geotechnical engineering construction according to claim 1, characterized in that: A driving motor (10) is fixed to the outside of the detection box (1), and an output shaft of the driving motor (10) passes through the inner cavity of the detection box (1) and is fixedly connected to one end of the winding shaft (2).

5. The device for monitoring soil settlement during geotechnical engineering construction according to claim 2, characterized in that: A limiting frame (11) is fixed on one side of the inner cavity of the detection box (1), and the movable plate (84) extends from a side away from the shuttle-shaped block (86) to the inner cavity of the limiting frame (11) and is slidably connected to the limiting frame (11).

6. The device for monitoring soil settlement during geotechnical engineering construction according to claim 1, characterized in that: A fixed tube (12) is fixed at the bottom of the inner cavity of the detection box (1), and the fixed tube (12) is sleeved on the outside of the traction rope (4). A shooting port (13) corresponding to the monitoring device (7) is opened at the bottom of the fixed tube (12).

7. The device for monitoring soil settlement during geotechnical engineering construction according to claim 1, characterized in that: The traction rope (4) comprises an outer stretch-resistant insulating skin (41) and an inner conductive wire (42) connected to a pressure sensor (6). The outer side of the insulating skin (41) is provided with scale lines (43).

8. The device for monitoring soil settlement during geotechnical engineering construction according to claim 1, characterized in that: The inner cavity of the detection box (1) is provided with a control box, and a control circuit board is provided in the control box. The control circuit board is electrically connected to the drive motor (10), the pressure sensor (6) and the monitoring device (7) respectively.

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