CN110984249A - Foundation pit deformation real-time monitoring system - Google Patents
Foundation pit deformation real-time monitoring system Download PDFInfo
- Publication number
- CN110984249A CN110984249A CN201911275109.5A CN201911275109A CN110984249A CN 110984249 A CN110984249 A CN 110984249A CN 201911275109 A CN201911275109 A CN 201911275109A CN 110984249 A CN110984249 A CN 110984249A
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- Prior art keywords
- foundation pit
- real
- monitoring system
- rod
- suspension wire
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/10—Miscellaneous comprising sensor means
Abstract
The invention relates to a real-time monitoring system for foundation pit deformation, which comprises a plurality of sensors arranged along the length direction of the edge of a foundation pit, wherein the sensors are connected with a data processing device and comprise a laser transmitter, a laser receiver and a detection plate positioned between the laser transmitter and the laser receiver, a detection hole is formed in the detection plate, the laser transmitter and the laser receiver are used for monitoring through the detection hole, a suspension wire is connected onto the detection plate, the lower end of the suspension wire is fixed onto the detection plate, the upper end of the suspension wire is fixed onto the top of the foundation pit, a plurality of supports are arranged in the middle of the suspension wire, and the supports are fixed onto the surface of. The invention can monitor the surface of the foundation pit which is arc-shaped along the length direction of the edge of the foundation pit in real time.
Description
Technical Field
The invention relates to the technical field of foundation pit monitoring, in particular to a foundation pit deformation real-time monitoring system.
Background
Most of foundation pit projects have the excavation depth of more than 5m (including 5m) or more than three layers (including three layers) of a basement, or the excavation depth of less than 5m (including 5m), but the geological conditions, the surrounding environment, underground pipelines and complex projects thereof are systematic projects related to social safety, construction project quality safety and harmonious social construction, medium-high-rise and high-rise buildings of urban construction are continuously emerged, the foundation pit projects of the urban are developed to large depth and large area, the technical complexity is higher and higher, and the excavation process of the foundation pit often brings dangers of ground settlement, inclination of surrounding buildings, even collapse and the like.
The patent document with the publication number of CN209620132U discloses a foundation pit displacement monitoring system, including the detection mechanism who is used for detecting foundation pit deformation, detection mechanism includes a plurality of echelettes that are used for detecting foundation pit deformation, echelettes sets up the corner department at the foundation pit, echelettes includes infrared grating frame and fixes echelettes emitter and the infrared echelettes receiving arrangement on infrared grating frame, echelettes emitter and infrared echelettes receiving arrangement set up relatively. After the situation that the barrier is generated between the infrared grating transmitting device and the infrared grating receiving device, the infrared grating device can detect, so that the deformation condition of the foundation pit between the infrared grating transmitting device and the infrared grating receiving device is judged.
However, in the above structure, the foundation pit between the ir grating emitting device and the ir grating receiving device must be on the same plane, and the surface of the foundation pit that is curved along the length direction of the edge of the foundation pit cannot be monitored.
Disclosure of Invention
The invention aims to provide a foundation pit deformation real-time monitoring system which can monitor the surface of a foundation pit which is arc-shaped along the length direction of the edge of the foundation pit in real time.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a foundation ditch deformation real-time monitoring system, includes a plurality of sensors that set up along foundation ditch edge length direction, and the sensor is connected with data processing apparatus, the sensor includes laser emitter, laser receiver and is located the pick-up plate between laser emitter and the laser receiver, the inspection hole has been seted up on the pick-up plate, and laser emitter and laser receiver monitor through the inspection hole, be connected with the suspension wire on the pick-up plate, the lower extreme of suspension wire is fixed on the pick-up plate, and the top at the foundation ditch is fixed to the upper end of suspension wire, the middle part of suspension wire is provided with a plurality of supports, and the support is fixed.
Through adopting the above technical scheme, during the use, the staff sets up a plurality of sensors along the length direction at foundation ditch edge, data processing apparatus is connected with the sensor, pick-up plate connection suspension wire, the middle part of suspension wire is provided with a plurality of supports, a plurality of supports are fixed on the surface of foundation ditch, the support supports on the suspension wire, the top at the foundation ditch is fixed to the upper end of suspension wire, when the foundation ditch takes place to warp, the pick-up plate that the suspension wire lower extreme hung removes, because the inspection hole has been seted up on the pick-up plate, the size of inspection hole sets up according to foundation ditch deflection, thereby after inspection hole and the dislocation of laser emitter on the pick-up plate, data processing apparatus obtains the deformation result of foundation ditch, and the setting of sensor can distribute on the curved foundation ditch surface of foundation ditch edge one-tenth.
The invention is further configured to: the detection board is arranged on the outer side of the detection board and located in the protection box, the laser transmitter and the laser receiver are fixed on the inner wall of the protection box, and the protection box is buried under the ground of the foundation pit.
Through adopting above-mentioned technical scheme, the protection box is buried underground in foundation ditch ground below, because foundation ditch ground is more stable to the pick-up plate reacts more accurately after foundation ditch lateral wall warp.
The invention is further configured to: the inner wall of the protection box is provided with a sliding groove, the sliding groove is vertically arranged, the detection plate is in sliding fit in the sliding groove, and a balancing weight is hung below the detection plate.
Through adopting above-mentioned technical scheme, set up the spout on the inner wall of protection box, pick-up plate sliding fit is in the spout, vertical motion when making the motion of pick-up plate avoids the pick-up plate to rotate, and the balancing weight is used for making the pick-up plate slide more smoothly in the spout.
The invention is further configured to: the data processing device comprises a processor, a wireless transmitting module and a wireless receiving module, the sensor is connected with the processor, the wireless transmitting module is connected with the processor, the wireless receiving module is used for receiving data of the wireless transmitting module, and the wireless receiving module is connected with an alarm device and display equipment.
By adopting the technical scheme, after the processor receives the signal of the sensor, the signal is transmitted to the alarm device and the display equipment through the wireless transmitting module and the wireless receiving module, so that the data management is more convenient, and the prompt is more timely.
The invention is further configured to: the support includes base, intermediate lever and connection frame, and the base is used for fixing on the foundation ditch, and intermediate lever one end is connected on the base, and the other end is used for the fixed connection frame, be provided with two gyro wheels in the connection frame, press from both sides the suspension wire between two gyro wheels.
Through adopting above-mentioned technical scheme, press from both sides the suspension wire between two gyro wheels, when the suspension wire takes place to remove, the suspension wire is taking two gyro wheels to rotate to it is lighter to make the suspension wire move on the support, and is more sensitive to the deformation reaction of foundation ditch, prevents simultaneously that the suspension wire from deviating from the support.
The invention is further configured to: the connecting frame is provided with a screw rod, the central line of the screw rod is superposed with the central line of the middle rod, the screw rod is in threaded connection with the middle rod, a nut is arranged in the middle of the screw rod and in threaded connection with the screw rod, and the nut is abutted against the end part of the middle rod.
By adopting the technical scheme, the central line of the screw rod is superposed with the central line of the middle rod, when the screw rod is rotated, the screw rod and the middle rod move relatively in the length direction, so that the position of the connecting frame is adjusted, and the nut is abutted against the middle rod through the threaded connection of the nut and the screw rod, so that the screw rod and the middle rod are relatively locked.
The invention is further configured to: the base is provided with a fixed shaft, the middle rod is rotatably connected to the fixed shaft, and the fixed shaft is provided with a damping device.
By adopting the technical scheme, the base is provided with the fixed shaft, the fixed shaft is provided with the damping device, the middle rod is rotatably connected onto the fixed shaft, and after a user rotates the middle rod, the middle rod can be quickly positioned at any rotatable position through the damping device.
The invention is further configured to: the damping device comprises a conical sleeve and a spring, the inner wall of the conical sleeve is connected with the outer wall of the fixed shaft through a spline, the spring is sleeved on the fixed shaft, one end of the spring is abutted to the conical sleeve, and the other end of the spring is abutted to the base.
Through adopting above-mentioned technical scheme, the taper sleeve passes through splined connection on the fixed axle, and under the effort of spring, the outer wall butt of taper sleeve is on the intermediate lever to carry out the damping through the frictional force between taper sleeve and the intermediate lever.
The invention is further configured to: the base is provided with a plurality of nail rods, and the length direction of the nail rods is parallel to the length direction of the middle rod.
Through adopting above-mentioned technical scheme, the setting of nail pole can make things convenient for pedestal mounting on the surface of foundation ditch on the base.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the detection plate is provided with a detection hole, and the size of the detection hole is set according to the deformation of the foundation pit, so that after the detection hole on the detection plate is staggered with the laser emitter, a data processing device obtains the deformation result of the foundation pit, and the setting of the sensor can be distributed on the surface of the foundation pit with the arc-shaped edge of the foundation pit;
2. the protection box is buried under the ground of the foundation pit, and the ground of the foundation pit is relatively stable, so that the detection plate can react more accurately after the side wall of the foundation pit deforms;
3. the base is provided with the fixed shaft, the damping device is arranged on the fixed shaft, the middle rod is rotatably connected to the fixed shaft, and after a user rotates the middle rod, the middle rod can be quickly positioned at any rotatable position through the damping device.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a half-section of the sensor;
FIG. 3 is a block diagram of sensor signal connections;
FIG. 4 is a schematic view of the overall construction of the stent;
FIG. 5 is a schematic view of the damper device;
fig. 6 is a schematic view of a coupling structure of the taper sleeve and the fixed shaft.
In the figure, 1, a suspension wire; 2. a support; 21. a base; 211. mounting a rod; 212. a disc; 22. an intermediate lever; 23. a connecting frame; 24. a nail rod; 25. a roller; 26. a screw; 27. a nut; 3. a foundation pit; 4. a sensor; 41. a laser transmitter; 42. a laser receiver; 43. detecting a plate; 44. a protection box; 45. a chute; 46. a balancing weight; 47. a detection hole; 51. a processor; 52. a wireless transmitting module; 53. a wireless receiving module; 54. an alarm device; 55. a display device; 6. a damping device; 61. a conical sleeve; 62. a spring; 63. a fixed shaft; 64. a spline; 65. and (4) a tapered hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the invention discloses a real-time monitoring system for foundation pit deformation, which comprises a plurality of suspension wires 1 and supports 2, wherein the supports 2 are fixed on the surface of a foundation pit 3, the suspension wires 1 are supported on the supports 2, the supports 2 are arranged in the middle of each suspension wire 1, the upper ends of the suspension wires 1 are fixed on the top of the foundation pit 3, the lower ends of the suspension wires 1 are provided with sensors 4, the length direction of the suspension wires 1 is arranged along the height of the foundation pit 3, the suspension wires 1 are uniformly distributed in the length direction of the edge of the foundation pit 3, and after the foundation pit 3 deforms, the supports 2 on the foundation pit 3 drive the suspension wires 1 to move, so that the sensors 4 at the lower ends of the suspension wires.
Referring to fig. 2, sensor 4 includes laser emitter 41, laser receiver 42, detection plate 43 and protection box 44, be provided with spout 45 in the protection box 44, spout 45 vertical setting, the vertical setting of detection plate 43, two side sliding fit of detection plate 43 are in spout 45, the top edge of detection plate 43 is fixed with the lower extreme of suspension wire 1, it is equipped with balancing weight 46 to hang on the lower limb of detection plate 43, increase the gliding fluency of detection plate 43 in spout 45, suspension wire 1 runs through and enters into in protection box 44, protection box 44 is buried underground and is located the bottom of foundation ditch 3. Detection hole 47 has been seted up at the middle part of pick-up plate 43, and the size of detection hole 47 and the deformable furthest of foundation ditch 3 set up laser receiver 42 and laser emitter 41 relatively and correspond with detection hole 47, make laser emitter 41 and laser receiver 42 monitor through detection hole 47, and laser receiver 42 is connected with data processing device. After the foundation pit 3 deforms, the detection plate 43 slides up and down along the sliding groove 45, and after the detection holes 47 in the detection plate 43 are staggered with the laser emitter 41 and the laser receiver 42, the data processing device reminds the deformation degree of the foundation pit 3.
Referring to fig. 3, the data processing apparatus includes a processor 51, a wireless transmission module 52, a wireless reception module 53, and an alarm apparatus 54. The processor 51 is connected with the sensor 4, after the sensor 4 is dislocated with the detection hole 47, the processor 51 receives the signal transformation of the sensor 4, and the wireless transmission module 52 is connected with the processor 51, so that the processor 51 sends out the signal through the wireless transmission module 52; wireless receiving module 53 is used for receiving wireless transmitting module 52's data, and alarm device 54 is connected with wireless receiving module 53, and alarm device 54 can select loudspeaker, reminds the staff through loudspeaker after wireless receiving module 53 receives the signal, still is connected with display device 55 on wireless receiving module 53, and display device 55 can be display screen or signal lamp, will further remind the staff again through display device 55.
Referring to fig. 4 and 5, the bracket 2 includes a base 21, an intermediate lever 22 and a connection frame 23, the base 21 includes a mounting lever 211 and a disk 212, the mounting lever 211 is perpendicular to the disk 212, one end of the mounting lever 211 is fixed at a central position of the disk 212, the other end is used for connecting the intermediate lever 22, one end of the intermediate lever 22 is hinged on the mounting lever 211, and the other end is used for fixing the connection frame 23. Three nail rods 24 are arranged on one side of the disc 212 opposite to the mounting rod 211, the length direction of the nail rods 24 is parallel to the length direction of the middle rod 22, the nail rods 24 are used for being inserted on the surface of the foundation pit 3, the disc 212 is used for being stopped on the surface of the foundation pit 3, and when the foundation pit 3 deforms, the disc 212 can move along with the deformation of the foundation pit 3. A damper device 6 is provided between the intermediate lever 22 and the mounting lever 211, and the intermediate lever 22 can be stopped at an arbitrary position hinged to the mounting lever 211 by the damper device 6. Two rollers 25 are arranged in the connecting frame 23, the two rollers 25 are U-shaped wheels, the axes of the two rollers 25 are arranged in parallel, the suspension wire 1 is positioned between the two rollers 25, the two rollers 25 clamp the suspension wire 1, the suspension wire 1 is convenient to guide, and the suspension wire 1 is light and convenient to move.
Referring to fig. 4 and 5, a screw 26 is provided on the connection frame 23, a center line of the screw 26 coincides with a center line of the intermediate rod 22, one end of the screw 26 is fixed to the connection frame 23, the other end is screwed to the intermediate rod 22, and a nut 27 is provided in a middle portion of the screw 26, the nut 27 being screwed to the screw 26, so that after the screw 26 is rotated with respect to the intermediate rod 22, a distance between the connection frame 23 and the intermediate rod 22 can be adjusted, and when the nut 27 abuts on an end portion of the intermediate rod 22, the nut 27 and the intermediate rod 22 and the screw 26 can be locked to prevent relative rotation between the screw 26 and the intermediate rod 22.
Referring to fig. 5 and 6, the damping device 6 includes a conical sleeve 61 and a spring 62, a fixing shaft 63 is disposed at a position where the mounting rod 211 rotates with the intermediate rod 22, the fixing shaft 63 is fixed on the mounting rod 211, a spline 64 is disposed at a middle portion of the fixing shaft 63, the spline 64 is engaged between an inner wall of the conical sleeve 61 and the fixing shaft 63, an outer wall of the conical sleeve 61 is conical, a conical hole 65 is formed in the intermediate rod 22, the conical hole 65 is sleeved on the fixing shaft 63, the conical sleeve 61 is engaged with the conical hole 65, the spring 62 is sleeved on the fixing shaft 63, one end of the spring 62 abuts against the conical sleeve 61, and the other end abuts against the mounting rod 211, so that under an acting force of the spring 62, a friction force is generated between the outer wall of the conical sleeve 61 and the inner wall of the conical hole 65, and damping is.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The utility model provides a foundation ditch deformation real-time monitoring system which characterized in that: including a plurality of sensors (4) that set up along foundation ditch (3) edge length direction, sensor (4) are connected with data processing apparatus, sensor (4) include laser emitter (41), laser receiver (42) and are located pick-up plate (43) between laser emitter (41) and laser receiver (42), pick-up plate (43) are last to have seted up inspection hole (47), and laser emitter (41) and laser receiver (42) monitor through inspection hole (47), be connected with suspension wire (1) on pick-up plate (43), the lower extreme of suspension wire (1) is fixed on pick-up plate (43), and the top in foundation ditch (3) is fixed to the upper end of suspension wire (1), the middle part of suspension wire (1) is provided with a plurality of supports (2), and the surface at foundation ditch (3) is fixed in support (2).
2. The real-time foundation pit deformation monitoring system according to claim 1, characterized in that: the outer side of the detection plate (43) is provided with a protection box (44), the detection plate (43) is located in the protection box (44), the laser transmitter (41) and the laser receiver (42) are both fixed on the inner wall of the protection box (44), and the protection box (44) is buried under the ground of the foundation pit (3).
3. The foundation pit deformation real-time monitoring system of claim 2, wherein: a sliding groove (45) is formed in the inner wall of the protection box (44), the sliding groove (45) is vertically arranged, the detection plate (43) is in sliding fit in the sliding groove (45), and a balancing weight (46) is hung below the detection plate (43).
4. The real-time foundation pit deformation monitoring system according to claim 1, characterized in that: the data processing device comprises a processor (51), a wireless transmitting module (52) and a wireless receiving module (53), the sensor (4) is connected with the processor (51), the wireless transmitting module (52) is connected with the processor (51), the wireless receiving module (53) is used for receiving data of the wireless transmitting module (52), and the wireless receiving module (53) is connected with an alarm device (54) and a display device (55).
5. The system for monitoring the deformation of the foundation pit in real time according to any one of claims 1 to 4, wherein: the support (2) comprises a base (21), an intermediate rod (22) and a connecting frame (23), the base (21) is used for being fixed on the foundation pit (3), one end of the intermediate rod (22) is connected to the base (21), the other end of the intermediate rod is used for fixedly connecting the connecting frame (23), two rollers (25) are arranged in the connecting frame (23), and the suspension wire (1) is clamped between the two rollers (25).
6. The real-time foundation pit deformation monitoring system according to claim 5, wherein: the connecting frame (23) is provided with a screw rod (26), the center line of the screw rod (26) is overlapped with the center line of the middle rod (22), the screw rod (26) is in threaded connection with the middle rod (22), a nut (27) is arranged in the middle of the screw rod (26), the nut (27) is in threaded connection with the screw rod (26), and the nut (27) abuts against the end portion of the middle rod (22).
7. The real-time foundation pit deformation monitoring system according to claim 6, wherein: the base (21) is provided with a fixed shaft (63), the middle rod (22) is rotatably connected to the fixed shaft (63), and the fixed shaft (63) is provided with a damping device (6).
8. The real-time foundation pit deformation monitoring system according to claim 7, wherein: damping device (6) are including toper cover (61) and spring (62), spline (64) are connected between the inner wall of toper cover (61) and the outer wall of fixed axle (63), spring (62) cover is established on fixed axle (63), and the one end butt of spring (62) is on toper cover (61), and the other end butt is on base (21).
9. The system of claim 8, wherein the real-time monitoring system for the deformation of the foundation pit comprises: the base (21) is provided with a plurality of nail rods (24), and the length direction of the nail rods (24) is parallel to the length direction of the middle rod (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911275109.5A CN110984249B (en) | 2019-12-12 | 2019-12-12 | Foundation pit deformation real-time monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911275109.5A CN110984249B (en) | 2019-12-12 | 2019-12-12 | Foundation pit deformation real-time monitoring system |
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| Publication Number | Publication Date |
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| CN110984249A true CN110984249A (en) | 2020-04-10 |
| CN110984249B CN110984249B (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911275109.5A Active CN110984249B (en) | 2019-12-12 | 2019-12-12 | Foundation pit deformation real-time monitoring system |
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| CN114577134A (en) * | 2022-03-01 | 2022-06-03 | 长江水利委员会长江科学院 | Wide-range all-weather landslide body inclination deformation monitoring device and method |
| CN115262666A (en) * | 2022-08-29 | 2022-11-01 | 广东粤能工程管理有限公司 | Foundation pit engineering monitor for high-rise building |
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| CN209620132U (en) * | 2019-01-25 | 2019-11-12 | 中铁上海工程局集团有限公司 | A kind of foundation pit position offset monitoring system |
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| US9828740B1 (en) * | 2014-04-29 | 2017-11-28 | Arizona Foundation Solutions, LLC | System and method for stabilization of structures by control of soil moisture content |
| JP2016109611A (en) * | 2014-12-09 | 2016-06-20 | 積水ハウス株式会社 | Displacement measuring device |
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| CN114577134A (en) * | 2022-03-01 | 2022-06-03 | 长江水利委员会长江科学院 | Wide-range all-weather landslide body inclination deformation monitoring device and method |
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| CN115262666A (en) * | 2022-08-29 | 2022-11-01 | 广东粤能工程管理有限公司 | Foundation pit engineering monitor for high-rise building |
| CN115262666B (en) * | 2022-08-29 | 2023-08-18 | 广东粤能工程管理有限公司 | Foundation pit engineering monitor for high-rise building |
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| CN110984249B (en) | 2021-03-19 |
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