CN114541495A - Foundation pit deformation monitoring device and monitoring method thereof - Google Patents
Foundation pit deformation monitoring device and monitoring method thereof Download PDFInfo
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- CN114541495A CN114541495A CN202210246406.2A CN202210246406A CN114541495A CN 114541495 A CN114541495 A CN 114541495A CN 202210246406 A CN202210246406 A CN 202210246406A CN 114541495 A CN114541495 A CN 114541495A
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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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- 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
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/14—Geometrical or physical properties resilient or elastic
- E02D2200/146—Springs
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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
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Abstract
The invention relates to a foundation pit deformation monitoring device and a monitoring method thereof, wherein a first supporting plate and a second supporting plate are fixedly connected to the inner wall of one side, away from each other, of a foundation pit, two symmetrical supporting plates are fixedly connected to the two sides of the inner wall of the bottom of the foundation pit, a same reciprocating lead screw is rotatably connected between the two supporting plates, a supporting arm is rotatably connected to the top of a nut block in a threaded sleeve manner on the outer wall of the reciprocating lead screw, one end of each of the two reciprocating lead screws rotatably penetrates through the corresponding supporting plate and is fixedly connected with a synchronizing wheel, and an output shaft of a driving motor is fixedly connected with one of the synchronizing wheels; one end of the supporting arm is provided with a monitoring component for monitoring the first supporting plate and the second supporting plate; the inner wall of the bottom of the foundation pit is provided with two groups of first supporting components and second supporting components for supporting the supporting arms; the problem of current foundation ditch deformation monitoring devices can't in time confirm foundation ditch deformation position and deformation degree, can't in time compensate deformation zone section stress loss when the foundation ditch warp, seriously influence construction safety is solved.
Description
Technical Field
The invention belongs to the field of foundation pit support and relates to a foundation pit deformation monitoring device and a monitoring method thereof.
Background
At present, underground space development technology gradually becomes the mainstream direction of urban development. In the process of developing an underground space, ensuring the safety of a foundation pit is important, and monitoring of the deformation of the foundation pit is an important means. The foundation pit deformation monitoring refers to that in the excavation process of a foundation pit, a precise instrument and equipment are used for comprehensively monitoring the supporting structure and the surrounding environment, such as the displacement, the inclination, the sedimentation, the stress, the cracking, the basement rising, the soil layer pore water pressure, the dynamic change of the underground water level and the like of rock masses, buildings, roads, underground facilities and the like, and a conclusion can be obtained from a large amount of foundation pit engineering accident analysis: any foundation pit engineering accident together is inexistently and directly related to monitoring without exception, the foundation pit engineering monitoring is an important means for checking the correctness of a design scheme and is a necessary measure for timely guiding correct construction and avoiding accidents, the principle of monitoring system design comprises a reliability principle, a multi-level monitoring principle, a principle of key monitoring areas, an economic and reasonable principle and a convenient and practical principle, and the monitoring of the horizontal displacement of the top end of a supporting structure is the most important monitoring content.
The monitoring point of the foundation pit deformation monitoring device in the prior art is limited, when the foundation pit deforms, the deformation position and the deformation degree can not be determined in time, further the deformation data and the deformation position can not be transmitted to constructors in time, engineering accidents can be caused easily in the later stage, the existing device can only play a role in monitoring, the stress loss of a deformation section can not be made up in time when the foundation pit deforms, the deformation of the foundation pit continues to be enlarged, under the serious condition, the foundation pit collapses, the construction safety is seriously influenced, and major safety accidents are caused.
Disclosure of Invention
In view of this, the invention provides a foundation pit deformation monitoring device, which is used for solving the problems that the existing foundation pit deformation monitoring device cannot determine the deformation position and the deformation degree of the foundation pit in time, cannot compensate the stress loss of a deformation section in time when the foundation pit is deformed, and seriously influences the construction safety.
In order to achieve the purpose, the invention provides the following technical scheme:
a foundation pit deformation monitoring device comprises a driving motor fixedly connected to the inner wall of the bottom of a foundation pit, wherein a first supporting plate and a second supporting plate are fixedly connected to the inner wall of one side, away from each other, of the foundation pit, the first supporting plate is located above the second supporting plate, two symmetrical supporting plates are fixedly connected to two sides of the inner wall of the bottom of the foundation pit, the same reciprocating lead screw is rotatably connected between the two supporting plates, a nut block is sleeved on the outer wall of the reciprocating lead screw in a threaded manner, a supporting arm is rotatably connected to the top of the nut block, one end of each of the two reciprocating lead screws penetrates through the corresponding supporting plate in a rotating manner and is fixedly connected with a synchronizing wheel, the two synchronizing wheels are connected through synchronous belt transmission, and an output shaft of the driving motor is fixedly connected with one of the synchronizing wheels;
one end of the supporting arm is provided with a monitoring component for monitoring the first supporting plate and the second supporting plate in real time;
two groups of first supporting components for supporting the supporting arms are arranged on the inner wall of the bottom of the foundation pit;
and two groups of second supporting components for supporting the supporting arms are arranged on the inner wall of the bottom of the foundation pit.
Further, the monitoring subassembly includes the first monitoring box of fixed connection on the support arm top, one side fixedly connected with fixed arm that the support arm is close to the second backup pad, the other end fixedly connected with second monitoring box of fixed arm, all be equipped with a plurality of spouts in first monitoring box and the second monitoring box, sliding connection has the slide bar in the spout, the first spring of one end fixedly connected with of first backup pad is kept away from to the slide bar, and the other end of first spring and one side inner wall fixed connection of spout, the one end fixedly connected with pressure sensor of first spring is kept away from to the slide bar, and a plurality of pressure sensor touch with first backup pad and second backup pad respectively.
Further, first supporting component includes the triangle piece of fixed connection at foundation ditch bottom inner wall, be equipped with T type groove in the triangle piece, sliding connection has T type piece in the T type groove, one side sliding connection that the support arm is close to the triangle piece has the sleeve, sliding connection has the loop bar in the sleeve, and the one end and the T type piece fixed connection of support arm are kept away from to the loop bar, one side that the sleeve was kept away from each other all is equipped with a plurality of through-holes, one side that the loop bar was kept away from each other all is equipped with a plurality of sliding trays, sliding connection has the wedge that runs through the through-hole in the sliding tray, the one end fixedly connected with second spring of through-hole is kept away from to the wedge, and one side inner wall fixed connection of the other end of second spring and sliding tray.
Further, the second supporting component includes the second fixed block of fixed connection at foundation ditch bottom inner wall, be equipped with the chute in the second fixed block, the top of second fixed block is rotated and is connected with the pneumatic cylinder, the output shaft of pneumatic cylinder rotates and is connected with the base, and base and support arm fixed connection, the first fixed block of one side fixedly connected with of three hornblocks is kept away from to the nut piece, the opposite side sliding connection of first fixed block has the sloping block, and the chute sliding fit in sloping block and the second fixed block, the top fixedly connected with third spring of first fixed block, one side fixedly connected with dog that the sloping block is close to the nut piece, and the bottom of dog and the top fixed connection of third spring.
Further, the equal fixedly connected with rectangle frame in one side that the support arm was kept away from to second monitoring case and first monitoring case can make first monitoring case and second monitoring case extrude first backup pad and second backup pad through the rectangle frame.
Furthermore, one side of the supporting arm close to the triangular block is connected with a rotating block in a sliding mode, and one side of the rotating block far away from the supporting arm is connected with the sleeve in a rotating mode.
Furthermore, a plurality of oblique latches of bottom fixedly connected with of sloping block, and a plurality of oblique latches are crisscross arranges, can increase the frictional force of sloping block and foundation ditch bottom inner wall through oblique latch for strut first backup pad and second backup pad.
Furthermore, a plurality of connecting rods of fixedly connected with between first backup pad and the second backup pad can be connected first backup pad and second backup pad as a whole through the connecting rod for increase first backup pad and second backup pad and to excavation supporting power.
Furthermore, a plurality of sliding rods are connected in the second supporting plate in a sliding manner, a plurality of grooves matched with the sliding rods are formed in the triangular block, a plurality of fixing rods penetrate through the second supporting plate in a sliding manner, clamping grooves clamped with the fixing rods are formed in one side of each sliding rod, a plurality of rectangular grooves are formed in the second supporting plate, a fixing plate located in the rectangular grooves is fixedly sleeved on the outer wall of each fixing rod, a plurality of fourth springs are fixedly connected to one side, away from the clamping grooves, of the fixing plate, the other end of each fourth spring is fixedly connected with the inner wall of one side of each rectangular groove, a magnet is fixedly connected to one side, close to the second supporting plate, of the second monitoring box, when the rectangular frame is attached to the second supporting plate, the magnet generates magnetic attraction on the fixing rods, the magnetic attraction of the magnet is far larger than the elastic force of the fourth springs, the fixing rods drive the fixing plates to slide towards the direction of the magnet, the fourth springs start to compress, and the fixing rods are separated from the clamping grooves, the slide bar falls downwards under the gravity factor of self and just falls to the recess in, and then can link together three hornblocks and second backup pad through the slide bar for support the second backup pad.
A monitoring method of a foundation pit deformation monitoring device comprises the following steps:
s1, a driving motor is started to drive a synchronizing wheel to rotate, the synchronizing wheel drives two reciprocating screw rods to rotate through a synchronous belt, and a nut block is in threaded connection with the reciprocating screw rods, so that the two nut blocks respectively reciprocate under the action of the reciprocating screw rods, the nut block drives a supporting arm, a first monitoring box, a second monitoring box and a sleeve rod to move, pressure sensors in the first monitoring box and the second monitoring box can respectively touch a first supporting plate and a second supporting plate while the first monitoring box and the second monitoring box move, a first spring starts to compress, the pressure sensors can respectively monitor the pressure of the first supporting plate and the second supporting plate on the pressure sensors in real time along with the rotation of the reciprocating screw rods, and further the deformation degree of the first supporting plate and the second supporting plate can be monitored in real time;
s2, when the deformation of the first support plate or the second support plate reaches a certain threshold value, a hydraulic cylinder is started, an output shaft of the hydraulic cylinder pushes the support arm to rotate, the first monitoring box and the second monitoring box can rotate towards the direction of the first support plate, then the two rectangular frames can be respectively attached to the first monitoring box and the second monitoring box, the first support plate and the second support plate are supported through the first monitoring box and the second monitoring box, after the rotating block slides on the support arm for a certain distance when the support arm rotates, the rotating block can extrude the sleeve towards the direction of the triangular block, the wedge block slides towards the middle under the action of the through hole, the second spring starts to compress until the wedge block is aligned with the corresponding through hole, the wedge block penetrates through the corresponding through hole under the action of the elasticity of the second spring again to brake the loop bar and the sleeve, the support arm can be pulled through the matching of the sleeve and the loop bar, the reverse rotation of the supporting arm caused by the overlarge deformation of the first supporting plate and the second supporting plate is avoided;
s3, when the rectangular frame is attached to the second supporting plate, the magnet generates magnetic attraction force on the fixing rod, the magnetic attraction force of the magnet is far larger than the elastic force of the fourth spring, the fixing rod drives the fixing plate to slide towards the direction of the magnet, the fourth spring starts to be compressed, the fixing rod is separated from the clamping groove, the sliding rod falls downwards under the gravity factor of the sliding rod and just falls into the groove, and then the triangular block and the second supporting plate can be connected together through the sliding rod and used for supporting the second supporting plate;
s4, when the foundation pit is deformed and increased, the deformation force generated by the foundation pit deformation acts on the nut block through the supporting arm and the fixing arm, the nut block generates thrust moving towards the middle, the nut block pushes the inclined block to move towards the middle through the first fixing block, because the inclined plane of the inclined block is in sliding fit with the inner inclined plane of the second fixing block, the inclined block and the inclined clamping teeth slide towards the inclined lower side, the third spring starts to stretch, the inclined clamping teeth touch the inner wall of the bottom of the foundation pit, the nut block can be supported through the friction force between the inclined clamping teeth and the inner wall of the bottom of the foundation pit, the supporting arm and the fixing arm can support the foundation pit in time when the foundation pit is deformed, the collapse engineering accident caused by the foundation pit is avoided, and the pressure sensor can transmit the deformed data to the engineering part in time, so that the engineering part monitors the deformation degree of the foundation pit in real time.
The invention has the beneficial effects that:
1. according to the foundation pit deformation monitoring device disclosed by the invention, the support arm, the first monitoring box, the second monitoring box and the sleeve rod are driven by the nut block to move on the reciprocating screw rod, the pressure sensor can be respectively contacted with the first support plate and the second support plate, and along with the rotation of the reciprocating screw rod, the pressure sensor can be used for monitoring the pressure of the first support plate and the second support plate on the pressure sensor respectively in real time, so that the deformation degree of the first support plate and the second support plate can be monitored in real time.
2. According to the foundation pit deformation monitoring device disclosed by the invention, by starting the hydraulic cylinder, the output shaft of the hydraulic cylinder pushes the supporting arm to rotate, the two rectangular frames can be respectively attached to the first monitoring box and the second monitoring box, the first monitoring box and the second monitoring box support the first supporting plate and the second supporting plate, the rotating block can extrude the sleeve to the direction of the triangular block, the wedge block slides towards the middle under the action of the through hole until the wedge block is aligned with the corresponding through hole, the wedge block penetrates through the corresponding through hole under the action of the elastic force of the second spring again to brake the loop bar and the sleeve, the supporting arm can be pulled through the matching of the sleeve and the loop bar, and the situation that the supporting arm reversely rotates due to the overlarge deformation of the first supporting plate and the second supporting plate is avoided.
3. According to the foundation pit deformation monitoring device disclosed by the invention, the magnetic attraction force is generated on the fixing rod through the magnet, the magnetic attraction force of the magnet is far greater than the elastic force of the fourth spring, the fixing rod drives the fixing plate to slide towards the direction of the magnet, the fixing rod is separated from the clamping groove, the sliding rod falls downwards under the gravity factor of the sliding rod and just falls into the groove, and then the triangular block and the second supporting plate can be connected together through the sliding rod and used for supporting the second supporting plate.
4. According to the foundation pit deformation monitoring device disclosed by the invention, when the foundation pit deformation is increased, the deformation force generated by the foundation pit deformation acts on the nut block through the supporting arm and the fixing arm, the nut block pushes the inclined block to move towards the middle through the first fixing block, the inclined block and the inclined clamping teeth slide towards the inclined lower side due to the sliding fit of the inclined surface of the inclined block and the inner inclined surface of the second fixing block, the inclined clamping teeth are in contact with the inner wall of the bottom of the foundation pit, and the nut block, the supporting arm and the fixing arm can be supported through the friction force between the inclined clamping teeth and the inner wall of the bottom of the foundation pit.
5. According to the foundation pit deformation monitoring device disclosed by the invention, the driving motor is started to drive the synchronous wheel to rotate, the reciprocating screw rod is driven to rotate, and the nut block is further enabled to reciprocate on the reciprocating screw rod, so that the pressure sensors on the first monitoring box and the second monitoring box can monitor the deformation degree of the first supporting plate and the second supporting plate in real time, the deformation data of the first supporting plate and the second supporting plate are transmitted to the engineering part in real time through the pressure sensors, and the hydraulic cylinder can be started to support the first supporting plate and the second supporting plate in time when the pressure sensors monitor that the first supporting plate and the second supporting plate are deformed to the movement degree, so that the occurrence of engineering accidents caused by the fact that the first supporting plate and the second supporting plate cannot be supported in time due to overlarge deformation is avoided.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a front cross-sectional view of a foundation pit deformation monitoring device according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a three-dimensional view of a detection assembly in the foundation pit deformation monitoring device according to the present invention;
FIG. 4 is a three-dimensional cross-sectional view of a first monitoring box in the foundation pit deformation monitoring device according to the present invention;
FIG. 5 is a first perspective three-dimensional view of a second support assembly of the apparatus for monitoring pit deformation according to the present invention;
FIG. 6 is a second perspective three-dimensional view of a second support assembly of the apparatus for monitoring pit deformation according to the present invention;
FIG. 7 is a cross-sectional view of a sleeve in the foundation pit deformation monitoring device according to the present invention;
FIG. 8 is a front cross-sectional view of a second support plate and a triangular block in the foundation pit deformation monitoring device according to the present invention;
FIG. 9 is an enlarged view of the invention at B in FIG. 8.
Reference numerals: 1. a foundation pit; 2. a first support plate; 3. a second support plate; 4. a connecting rod; 5. a support plate; 6. a reciprocating screw; 7. a drive motor; 8. a synchronizing wheel; 9. a synchronous belt; 10. a nut block; 11. a support arm; 12. a first monitoring box; 13. a fixed arm; 14. a second monitoring box; 15. a chute; 16. a first spring; 17. a slide bar; 18. a pressure sensor; 19. a triangular block; 20. a T-shaped groove; 21. a T-shaped block; 22. a sleeve; 23. a loop bar; 24. a through hole; 25. a sliding groove; 26. a second spring; 27. a wedge block; 28. a second fixed block; 29. a hydraulic cylinder; 30. a first fixed block; 31. a sloping block; 32. a stopper; 33. a third spring; 34. a base; 35. a rectangular frame; 36. rotating the block; 37. oblique latch teeth; 38. a slide bar; 39. a groove; 40. fixing the rod; 41. a card slot; 42. a rectangular groove; 43. a fixing plate; 44. a fourth spring; 45. and a magnet.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Example one
As shown in figures 1-7, a foundation pit deformation monitoring device comprises a driving motor 7 fixedly connected to the inner wall of the bottom of a foundation pit 1 through bolts, the inner wall of one side of the foundation pit 1 away from each other is fixedly connected with a first supporting plate 2 and a second supporting plate 3 through bolts, the first supporting plate 2 is positioned above the second supporting plate 3, two symmetrical supporting plates 5 are fixedly connected to two sides of the inner wall of the bottom of the foundation pit 1 through bolts, the same reciprocating lead screw 6 is rotatably connected between the two supporting plates 5, a nut block 10 is sleeved on the outer wall of the reciprocating lead screw 6 through a thread, a supporting arm 11 is rotatably connected to the top of the nut block 10, one end of each of the two reciprocating lead screws 6 rotatably penetrates through the corresponding supporting plate 5 and is fixedly connected with a synchronizing wheel 8, the two synchronizing wheels 8 are in transmission connection through a synchronous belt 9, and the output shaft of the driving motor 7 is fixedly connected with one of the synchronizing wheels 8, one end of support arm 11 is equipped with the monitoring subassembly that is used for carrying out real-time supervision to first backup pad 2 and second backup pad 3, the bottom inner wall of foundation ditch 1 is equipped with two sets of first supporting components that are used for carrying out the support to support arm 11, the bottom inner wall of foundation ditch 1 is equipped with two sets of second supporting components that are used for carrying out the support to support arm 11, one side sliding connection that support arm 11 is close to triangle piece 19 has turning block 36, and one side that support arm 11 was kept away from to turning block 36 rotates with sleeve 22 and is connected.
In the invention, the monitoring component comprises a first monitoring box 12 fixedly connected to the top end of a supporting arm 11 through a bolt, one side of the supporting arm 11 close to a second supporting plate 3 is fixedly connected with a fixed arm 13 through a bolt, the other end of the fixed arm 13 is fixedly connected with a second monitoring box 14 through a bolt, a plurality of sliding grooves 15 are respectively arranged in the first monitoring box 12 and the second monitoring box 14, sliding rods 17 are connected in the sliding grooves 15 in a sliding way, one ends of the sliding rods 17 far away from the first supporting plate 2 are fixedly connected with first springs 16, the other ends of the first springs 16 are fixedly connected with the inner wall of one side of the sliding grooves 15, one ends of the sliding rods 17 far away from the first springs 16 are fixedly connected with pressure sensors 18 through bolts, the plurality of pressure sensors 18 respectively contact with the first supporting plate 2 and the second supporting plate 3, and the supporting arm 11, the first monitoring box 12, the second monitoring box 14 and a loop bar 23 are driven to move on a reciprocating screw rod 6 through a nut block 10, pressure sensor 18 can bump with first backup pad 2 and second backup pad 3 respectively and touch, and along with reciprocating screw 6's rotation, pressure sensor 18 can the pressure to pressure sensor 18 respectively by real-time supervision first backup pad 2 and second backup pad 3, and then can the degree that first backup pad 2 and second backup pad 3 warp by real-time supervision.
In the invention, the first supporting component comprises a triangular block 19 fixedly connected to the inner wall of the bottom of the foundation pit 1 through a bolt, a T-shaped groove 20 is arranged in the triangular block 19, a T-shaped block 21 is connected in the T-shaped groove 20 in a sliding manner, a sleeve 22 is connected to one side, close to the triangular block 19, of the supporting arm 11 in a sliding manner, a sleeve rod 23 is connected in the sleeve 22 in a sliding manner, one end, far away from the supporting arm 11, of the sleeve rod 23 is fixedly connected with the T-shaped block 21 through a bolt, a plurality of through holes 24 are formed in one sides, far away from each other, of the sleeve 22, a plurality of sliding grooves 25 are formed in one sides, far away from each other, of the sleeve rod 23, a wedge block 27 penetrating through the through holes 24 is connected in the sliding groove 25 in a sliding manner, a second spring 26 is fixedly connected to one end, far away from the through hole 24, of the wedge block 27, the other end of the second spring is fixedly connected with the inner wall of one side of the sliding groove 25, and the hydraulic cylinder 29 is started to push the supporting arm 11 to rotate, two rectangle frames 35 can paste with first monitoring box 12 and second monitoring box 14 respectively and lean on, first monitoring box 12 and second monitoring box 14 support first backup pad 2 and second backup pad 3, turning block 36 can extrude sleeve 22 to the direction of triangle block 19, wedge block 27 slides to the centre under the effect of through-hole 24, after until wedge block 27 aligns with corresponding through-hole 24, wedge block 27 runs through corresponding through-hole 24 under the spring action of second spring 26 once more, brake loop bar 23 and sleeve 22, can carry out the tractive through the cooperation of sleeve 22 and loop bar 23 to support arm 11, avoid first backup pad 2 and second backup pad 3 to warp too big and lead to support arm 11 reverse rotation.
In the invention, the second supporting component comprises a second fixed block 28 fixedly connected to the inner wall of the bottom of the foundation pit 1 through a bolt, a chute is arranged in the second fixed block 28, the top of the second fixed block 28 is rotatably connected with a hydraulic cylinder 29, an output shaft of the hydraulic cylinder 29 is rotatably connected with a base 34, the base 34 is fixedly connected with the supporting arm 11 through a bolt, one side of the nut block 10 far away from the triangular block 19 is fixedly connected with a first fixed block 30 through a bolt, the other side of the first fixed block 30 is slidably connected with an inclined block 31, the inclined block 31 is in sliding fit with the chute in the second fixed block 28, the top of the first fixed block 30 is fixedly connected with a third spring 33, one side of the inclined block 31 close to the nut block 10 is fixedly connected with a stop 32 through a bolt, the bottom of the stop 32 is fixedly connected with the top end of the third spring 33, when the deformation of the foundation pit 1 is increased, the deformation force generated by the deformation of the foundation pit 1 acts on the nut block 10 through the supporting arm 11 and the fixing arm 13, the nut block 10 pushes the inclined block 31 to move towards the middle through the first fixing block 30, the inclined block 31 and the inclined latch 37 slide towards the inclined lower side due to the sliding fit of the inclined surface of the inclined block 31 and the inner inclined surface of the second fixing block 28, the inclined latch 37 is in contact with the inner wall of the bottom of the foundation pit 1, and the nut block 10, the supporting arm 11 and the fixing arm 13 can be supported through the friction force between the inclined latch 37 and the inner wall of the bottom of the foundation pit 1.
In the invention, the sides of the second monitoring box 14 and the first monitoring box 12 far away from the supporting arm 11 are fixedly connected with the rectangular frames 35 through bolts, and the first monitoring box 12 and the second monitoring box 14 can extrude the first supporting plate 2 and the second supporting plate 3 through the rectangular frames 35.
According to the invention, the bottom of the inclined block 31 is fixedly connected with a plurality of inclined clamping teeth 37, the inclined clamping teeth 37 are arranged in a staggered manner, and the friction force between the inclined block 31 and the inner wall of the bottom of the foundation pit 1 can be increased through the inclined clamping teeth 37, so that the inclined block is used for supporting the first supporting plate 2 and the second supporting plate 3.
According to the invention, a plurality of connecting rods 4 are fixedly connected between the first supporting plate 2 and the second supporting plate 3 through bolts, and the first supporting plate 2 and the second supporting plate 3 can be connected into a whole through the connecting rods 4 so as to increase the supporting force of the first supporting plate 2 and the second supporting plate 3 on the foundation pit 1.
Example two
As a further improvement of the previous embodiment, as shown in fig. 1 to 9, a foundation pit deformation monitoring device includes a driving motor 7 fixedly connected to the inner wall of the bottom of a foundation pit 1 by bolts, the inner wall of one side of the foundation pit 1 away from each other is fixedly connected to a first supporting plate 2 and a second supporting plate 3 by bolts, the first supporting plate 2 is located above the second supporting plate 3, two symmetrical supporting plates 5 are fixedly connected to two sides of the inner wall of the bottom of the foundation pit 1 by bolts, the same reciprocating lead screw 6 is rotatably connected between the two supporting plates 5, a nut block 10 is screwed on the outer wall of the reciprocating lead screw 6, a supporting arm 11 is rotatably connected to the top of the nut block 10, one end of each of the two reciprocating lead screws 6 rotatably penetrates through the corresponding supporting plate 5 and is fixedly connected to a synchronizing wheel 8, the two synchronizing wheels 8 are connected by a synchronous belt 9 in a transmission manner, the output shaft of the driving motor 7 is fixedly connected to one of the synchronizing wheels 8, one end of support arm 11 is equipped with the monitoring subassembly that is used for carrying out real-time supervision to first backup pad 2 and second backup pad 3, the bottom inner wall of foundation ditch 1 is equipped with two sets of first supporting components that are used for carrying out the support to support arm 11, the bottom inner wall of foundation ditch 1 is equipped with two sets of second supporting components that are used for carrying out the support to support arm 11, one side sliding connection that support arm 11 is close to triangle piece 19 has turning block 36, and one side that support arm 11 was kept away from to turning block 36 rotates with sleeve 22 and is connected.
In the invention, the monitoring component comprises a first monitoring box 12 fixedly connected to the top end of a supporting arm 11 through a bolt, one side of the supporting arm 11 close to a second supporting plate 3 is fixedly connected with a fixed arm 13 through a bolt, the other end of the fixed arm 13 is fixedly connected with a second monitoring box 14 through a bolt, a plurality of sliding grooves 15 are respectively arranged in the first monitoring box 12 and the second monitoring box 14, sliding rods 17 are connected in the sliding grooves 15 in a sliding way, one ends of the sliding rods 17 far away from the first supporting plate 2 are fixedly connected with first springs 16, the other ends of the first springs 16 are fixedly connected with the inner wall of one side of the sliding grooves 15, one ends of the sliding rods 17 far away from the first springs 16 are fixedly connected with pressure sensors 18 through bolts, the plurality of pressure sensors 18 respectively contact with the first supporting plate 2 and the second supporting plate 3, the supporting arm 11, the first monitoring box 12, the second monitoring box 14 and a loop bar 23 are driven to move on a reciprocating screw rod 6 through a nut block 10, pressure sensor 18 can bump with first backup pad 2 and second backup pad 3 respectively and touch, and along with reciprocating screw 6's rotation, pressure sensor 18 can the pressure to pressure sensor 18 respectively by real-time supervision first backup pad 2 and second backup pad 3, and then can the degree that first backup pad 2 and second backup pad 3 warp by real-time supervision.
In the invention, the first supporting component comprises a triangular block 19 fixedly connected to the inner wall of the bottom of the foundation pit 1 through a bolt, a T-shaped groove 20 is arranged in the triangular block 19, a T-shaped block 21 is connected in the T-shaped groove 20 in a sliding manner, a sleeve 22 is connected to one side, close to the triangular block 19, of the supporting arm 11 in a sliding manner, a sleeve rod 23 is connected in the sleeve 22 in a sliding manner, one end, far away from the supporting arm 11, of the sleeve rod 23 is fixedly connected with the T-shaped block 21 through a bolt, a plurality of through holes 24 are formed in one sides, far away from each other, of the sleeve 22, a plurality of sliding grooves 25 are formed in one sides, far away from each other, of the sleeve rod 23, a wedge block 27 penetrating through the through holes 24 is connected in the sliding groove 25 in a sliding manner, a second spring 26 is fixedly connected to one end, far away from the through hole 24, of the wedge block 27, the other end of the second spring is fixedly connected with the inner wall of one side of the sliding groove 25, and the hydraulic cylinder 29 is started to push the supporting arm 11 to rotate, two rectangle frames 35 can paste with first monitoring box 12 and second monitoring box 14 respectively and lean on, first monitoring box 12 and second monitoring box 14 support first backup pad 2 and second backup pad 3, turning block 36 can extrude sleeve 22 to the direction of triangle block 19, wedge block 27 slides to the centre under the effect of through-hole 24, after until wedge block 27 aligns with corresponding through-hole 24, wedge block 27 runs through corresponding through-hole 24 under the spring action of second spring 26 once more, brake loop bar 23 and sleeve 22, can carry out the tractive through the cooperation of sleeve 22 and loop bar 23 to support arm 11, avoid first backup pad 2 and second backup pad 3 to warp too big and lead to support arm 11 reverse rotation.
In the invention, the second supporting component comprises a second fixed block 28 fixedly connected to the inner wall of the bottom of the foundation pit 1 through a bolt, a chute is arranged in the second fixed block 28, the top of the second fixed block 28 is rotatably connected with a hydraulic cylinder 29, an output shaft of the hydraulic cylinder 29 is rotatably connected with a base 34, the base 34 is fixedly connected with the supporting arm 11 through a bolt, one side of the nut block 10 far away from the triangular block 19 is fixedly connected with a first fixed block 30 through a bolt, the other side of the first fixed block 30 is slidably connected with an inclined block 31, the inclined block 31 is in sliding fit with the chute in the second fixed block 28, the top of the first fixed block 30 is fixedly connected with a third spring 33, one side of the inclined block 31 close to the nut block 10 is fixedly connected with a stop 32 through a bolt, the bottom of the stop 32 is fixedly connected with the top end of the third spring 33, when the deformation of the foundation pit 1 is increased, the deformation force generated by the deformation of the foundation pit 1 acts on the nut block 10 through the supporting arm 11 and the fixing arm 13, the nut block 10 pushes the inclined block 31 to move towards the middle through the first fixing block 30, the inclined block 31 and the inclined latch 37 slide towards the inclined lower side due to the sliding fit of the inclined surface of the inclined block 31 and the inner inclined surface of the second fixing block 28, the inclined latch 37 is in contact with the inner wall of the bottom of the foundation pit 1, and the nut block 10, the supporting arm 11 and the fixing arm 13 can be supported through the friction force between the inclined latch 37 and the inner wall of the bottom of the foundation pit 1.
In the invention, the sides of the second monitoring box 14 and the first monitoring box 12 far away from the supporting arm 11 are fixedly connected with the rectangular frames 35 through bolts, and the first monitoring box 12 and the second monitoring box 14 can extrude the first supporting plate 2 and the second supporting plate 3 through the rectangular frames 35.
According to the invention, the bottom of the inclined block 31 is fixedly connected with a plurality of inclined clamping teeth 37, the inclined clamping teeth 37 are arranged in a staggered manner, and the friction force between the inclined block 31 and the inner wall of the bottom of the foundation pit 1 can be increased through the inclined clamping teeth 37, so that the inclined block is used for supporting the first supporting plate 2 and the second supporting plate 3.
According to the invention, a plurality of connecting rods 4 are fixedly connected between the first supporting plate 2 and the second supporting plate 3 through bolts, and the first supporting plate 2 and the second supporting plate 3 can be connected into a whole through the connecting rods 4 so as to increase the supporting force of the first supporting plate 2 and the second supporting plate 3 on the foundation pit 1.
In the invention, a plurality of sliding rods 38 are slidably connected in the second supporting plate 3, a plurality of grooves 39 matched with the sliding rods 38 are arranged in the triangular block 19, a plurality of fixing rods 40 are slidably penetrated in the second supporting plate 3, a clamping groove 41 clamped with the fixing rods 40 is arranged on one side of each sliding rod 38, a plurality of rectangular grooves 42 are arranged in the second supporting plate 3, a fixing plate 43 positioned in each rectangular groove 42 is fixedly sleeved on the outer wall of each fixing rod 40, a plurality of fourth springs 44 are fixedly connected on one side of each fixing plate 43 far away from the clamping groove 41, the other end of each fourth spring 44 is fixedly connected with the inner wall of one side of each rectangular groove 42, a magnet 45 is fixedly connected on one side of the second monitoring box 14 close to the second supporting plate 3 through bolts, when the rectangular frame 35 is attached to the second supporting plate 3, the magnet 45 generates magnetic attraction to the fixing rods 40, and the magnetic attraction of the magnet 45 is far greater than the elastic force of the fourth springs 44, the fixing rod 40 drives the fixing plate 43 to slide towards the magnet 45, the fourth spring 44 starts to compress, the fixing rod 40 is separated from the clamping groove 41, the sliding rod 38 falls downwards under the gravity factor of the sliding rod 38 and just falls into the groove 39, and then the triangular block 19 and the second supporting plate 3 can be connected together through the sliding rod 38 and used for supporting the second supporting plate 3.
The advantages of the second embodiment over the first embodiment are: sliding connection has a plurality of slide bars 38 in the second backup pad 3, be equipped with a plurality ofly in the triangular block 19 with slide bar 38 complex recess 39, it has a plurality of dead levers 40 to slide to run through in the second backup pad 3, one side of slide bar 38 is equipped with the draw-in groove 41 with dead lever 40 looks block, be equipped with a plurality of rectangular channels 42 in the second backup pad 3, the fixed cover of outer wall of dead lever 40 is equipped with the fixed plate 43 that is located rectangular channel 42, a plurality of fourth springs 44 of one side fixedly connected with of draw-in groove 41 are kept away from to fixed plate 43, and the other end of fourth spring 44 and one side inner wall fixed connection of rectangular channel 42, there is magnet 45 one side that second monitoring box 14 is close to second backup pad 3 through bolt fixedly connected with.
A monitoring method of a foundation pit deformation monitoring device comprises the following steps:
s1, starting the driving motor 7 to drive the synchronous wheel 8 to rotate, the synchronous wheel 8 drives the two reciprocating screw rods 6 to rotate through the synchronous belt 9, and the nut block 10 is in threaded connection with the reciprocating screw 6, so that the two nut blocks 10 respectively move in a reciprocating manner under the action of the reciprocating screw 6, the nut block 10 drives the supporting arm 11, the first monitoring box 12, the second monitoring box 14 and the loop bar 23 to move, when the first monitoring box 12 and the second monitoring box 14 move, the pressure sensors 18 in the first monitoring box 12 and the second monitoring box 14 can respectively touch the first supporting plate 2 and the second supporting plate 3, the first spring 16 starts to compress, and along with the rotation of the reciprocating screw 6, the pressure sensors 18 can monitor the pressure of the first supporting plate 2 and the second supporting plate 3 on the pressure sensors 18 in real time, so that the deformation degree of the first supporting plate 2 and the second supporting plate 3 can be monitored in real time;
s2, when the deformation of the first support plate 2 or the second support plate 3 reaches a certain threshold, the hydraulic cylinder 29 is started, the output shaft of the hydraulic cylinder 29 pushes the support arm 11 to rotate, the first monitoring box 12 and the second monitoring box 14 can rotate towards the first support plate 2, then the two rectangular frames 35 can respectively abut against the first monitoring box 12 and the second monitoring box 14, the first support plate 2 and the second support plate 3 are supported by the first monitoring box 12 and the second monitoring box 14, after the rotating block 36 slides on the support arm 11 for a certain distance when the support arm 11 rotates, the rotating block 36 can extrude the sleeve 22 towards the direction of the triangular block 19, the wedge 27 slides towards the middle under the action of the through hole 24, the second spring 26 starts to compress, until the wedge 27 is aligned with the corresponding through hole 24, the wedge 27 penetrates through the corresponding through hole 24 under the action of the elastic force of the second spring 26 again, the sleeve rod 23 and the sleeve 22 are braked, the support arm 11 can be drawn through the matching of the sleeve 22 and the sleeve rod 23, and the reverse rotation of the support arm 11 caused by the overlarge deformation of the first support plate 2 and the second support plate 3 is avoided;
s3, when the rectangular frame 35 is attached to the second support plate 3, the magnet 45 generates magnetic attraction force on the fixing rod 40, the magnetic attraction force of the magnet 45 is far greater than the elastic force of the fourth spring 44, the fixing rod 40 drives the fixing plate 43 to slide towards the direction of the magnet 45, the fourth spring 44 starts to compress, the fixing rod 40 is separated from the clamping groove 41, the sliding rod 38 falls downwards under the gravity factor of the sliding rod 38 and just falls into the groove 39, and then the triangular block 19 can be connected with the second support plate 3 through the sliding rod 38 and is used for supporting the second support plate 3;
s4, when the deformation of the foundation pit 1 is increased, the deformation force generated by the deformation of the foundation pit 1 acts on the nut block 10 through the supporting arm 11 and the fixing arm 13, so that the nut block 10 generates a thrust force moving towards the middle, the nut block 10 pushes the inclined block 31 to move towards the middle through the first fixing block 30, due to the sliding fit of the inclined plane of the inclined block 31 and the inner inclined plane of the second fixing block 28, the inclined block 31 and the inclined latch 37 slide towards the inclined lower side, the third spring 33 starts to stretch, the inclined latch 37 is contacted with the inner wall of the bottom of the foundation pit 1, the nut block 10, the supporting arm 11 and the fixing arm 13 can be supported through the friction force of the inclined latch 37 and the inner wall of the bottom of the foundation pit 1, the foundation pit 1 can be supported in time when the deformation of the foundation pit 1 occurs, the engineering accident caused by the collapse of the foundation pit 1 is avoided, and the pressure sensor 18 can transmit the deformed data to the engineering part in time, the engineering department monitors the deformation degree of the foundation pit 1 in real time.
However, the working principle and wiring method of the pressure sensor 18, the driving motor 7 and the hydraulic cylinder 29, which are well known to those skilled in the art, are conventional means or common knowledge in the art, and will not be described herein, and those skilled in the art can make any selection according to their needs or convenience.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (10)
1. A foundation pit deformation monitoring device comprises a driving motor (7) fixedly connected to the inner wall of the bottom of a foundation pit (1), and is characterized in that the inner wall of one side, far away from each other, of the foundation pit (1) is fixedly connected with a first supporting plate (2) and a second supporting plate (3), the first supporting plate (2) is positioned above the second supporting plate (3), two symmetrical supporting plates (5) are fixedly connected to the two sides of the inner wall of the bottom of the foundation pit (1), a same reciprocating lead screw (6) is rotatably connected between the two supporting plates (5), a nut block (10) is sleeved on the outer wall of the reciprocating lead screw (6) in a threaded manner, a supporting arm (11) is rotatably connected to the top of the nut block (10), one end of the two reciprocating lead screws (6) is rotatably penetrated through the corresponding supporting plates (5) and is fixedly connected with synchronizing wheels (8), and the two synchronizing wheels (8) are in transmission connection through a synchronous belt (9), an output shaft of the driving motor (7) is fixedly connected with one synchronous wheel (8);
one end of the supporting arm (11) is provided with a monitoring component for monitoring the first supporting plate (2) and the second supporting plate (3) in real time;
the inner wall of the bottom of the foundation pit (1) is provided with two groups of first supporting components and second supporting components which are used for supporting the supporting arms (11) respectively.
2. A foundation pit deformation monitoring device according to claim 1, wherein the monitoring assembly comprises a first monitoring box (12) fixedly connected to the top end of a supporting arm (11), a fixed arm (13) is fixedly connected to one side of the supporting arm (11) close to the second supporting plate (3), the other end of the fixed arm (13) is fixedly connected to a second monitoring box (14), a plurality of sliding grooves (15) are respectively arranged in the first monitoring box (12) and the second monitoring box (14), a sliding rod (17) is slidably connected in the sliding grooves (15), one end of the sliding rod (17) far away from the first supporting plate (2) is fixedly connected with a first spring (16), the other end of the first spring (16) is fixedly connected with the inner wall of one side of the sliding grooves (15), one end of the sliding rod (17) far away from the first spring (16) is fixedly connected with a pressure sensor (18), and the pressure sensors (18) are respectively contacted with the first supporting plate (2) and the second supporting plate (3).
3. A foundation pit deformation monitoring device according to claim 1, wherein the first supporting component comprises a triangular block (19) fixedly connected to the inner wall of the bottom of the foundation pit (1), a T-shaped groove (20) is formed in the triangular block (19), a T-shaped block (21) is slidably connected in the T-shaped groove (20), a sleeve (22) is slidably connected to one side, close to the triangular block (19), of the supporting arm (11), a sleeve rod (23) is slidably connected in the sleeve (22), one end, far away from the supporting arm (11), of the sleeve rod (23) is fixedly connected with the T-shaped block (21), a plurality of through holes (24) are formed in one side, far away from each other, of the sleeve rod (22), a plurality of sliding grooves (25) are formed in one side, far away from each other, of the sleeve rod (23), a wedge-shaped block (27) penetrating through the through holes (24) is slidably connected in the sliding grooves (25), one end of the wedge-shaped block (27) far away from the through hole (24) is fixedly connected with a second spring (26), and the other end of the second spring (26) is fixedly connected with the inner wall of one side of the sliding groove (25).
4. The foundation pit deformation monitoring device according to claim 3, wherein the second supporting component comprises a second fixing block (28) fixedly connected to the inner wall of the bottom of the foundation pit (1), a chute is arranged in the second fixing block (28), a hydraulic cylinder (29) is rotatably connected to the top of the second fixing block (28), an output shaft of the hydraulic cylinder (29) is rotatably connected with a base (34), the base (34) is fixedly connected with the supporting arm (11), a first fixing block (30) is fixedly connected to one side, away from the triangular block (19), of the nut block (10), an inclined block (31) is slidably connected to the other side of the first fixing block (30), the inclined block (31) is in sliding fit with the chute in the second fixing block (28), a third spring (33) is fixedly connected to the top of the first fixing block (30), and a stop block (32) is fixedly connected to one side, close to the nut block (10), of the inclined block (31), and the bottom of the stop block (32) is fixedly connected with the top end of the third spring (33).
5. A foundation pit deformation monitoring device according to claim 2, characterized in that the sides of the second monitoring box (14) and the first monitoring box (12) far away from the supporting arm (11) are fixedly connected with rectangular frames (35).
6. A foundation pit deformation monitoring device according to claim 3, characterized in that a turning block (36) is slidably connected to one side of the supporting arm (11) close to the triangular block (19), and one side of the turning block (36) far away from the supporting arm (11) is rotatably connected with the sleeve (22).
7. The foundation pit deformation monitoring device according to claim 4, wherein a plurality of inclined latch teeth (37) are fixedly connected to the bottom of the inclined block (31), and the inclined latch teeth (37) are arranged in a staggered manner.
8. A foundation pit deformation monitoring device according to claim 4, characterized in that a plurality of connecting rods (4) are fixedly connected between the first support plate (2) and the second support plate (3).
9. A foundation pit deformation monitoring device according to claim 3, wherein a plurality of sliding rods (38) are slidably connected in the second support plate (3), a plurality of grooves (39) matched with the sliding rods (38) are arranged in the triangular block (19), a plurality of fixing rods (40) are arranged in the second supporting plate (3) in a sliding way, one side of each sliding rod (38) is provided with a clamping groove (41) clamped with the corresponding fixing rod (40), a plurality of rectangular grooves (42) are arranged in the second supporting plate (3), a fixing plate (43) positioned in the rectangular grooves (42) is fixedly sleeved on the outer wall of the fixing rod (40), one side of the fixing plate (43) far away from the clamping groove (41) is fixedly connected with a plurality of fourth springs (44), and the other end of the fourth spring (44) is fixedly connected with the inner wall of one side of the rectangular groove (42), and one side of the second monitoring box (14) close to the second supporting plate (3) is fixedly connected with a magnet (45).
10. A monitoring method of a foundation pit deformation monitoring device is characterized by comprising the following steps:
s1, starting a driving motor (7) to drive a synchronizing wheel (8) to rotate, the synchronizing wheel (8) drives two reciprocating lead screws (6) to rotate through a synchronous belt (9), and a nut block (10) is in threaded connection with the reciprocating lead screws (6), so that the two nut blocks (10) respectively move in a reciprocating mode under the action of the reciprocating lead screws (6), and further the nut block (10) drives a supporting arm (11), a first monitoring box (12), a second monitoring box (14) and a sleeve rod (23) to move, when the first monitoring box (12) and the second monitoring box (14) move, a pressure sensor (18) positioned in the first monitoring box (12) and the second monitoring box (14) can respectively touch a first supporting plate (2) and a second supporting plate (3), a first spring (16) starts to compress, along with the rotation of the reciprocating lead screws (6), the pressure sensor (18) can monitor the first supporting plate (2) and the second supporting plate (3) in real time and respectively monitor the pressure sensor (18) The pressure of (a);
s2, when the deformation of the first support plate (2) or the second support plate (3) reaches a certain threshold value, the hydraulic cylinder (29) is started, the output shaft of the hydraulic cylinder (29) pushes the support arm (11) to rotate, the first monitoring box (12) and the second monitoring box (14) can rotate towards the direction of the first support plate (2), then the two rectangular frames (35) can be respectively attached to the first monitoring box (12) and the second monitoring box (14), the first support plate (2) and the second support plate (3) are supported through the first monitoring box (12) and the second monitoring box (14), the rotating block (36) slides on the support arm (11) when the support arm (11) rotates, the rotating block (36) can extrude the sleeve (22) towards the direction of the triangular block (19), the wedge-shaped block (27) slides towards the middle under the action of the through hole (24), and the second spring (26) starts to compress, after the wedge blocks (27) are aligned with the corresponding through holes (24), the wedge blocks (27) penetrate through the corresponding through holes (24) under the action of the elastic force of the second springs (26) again to brake the loop bar (23) and the sleeve (22);
s3, when the rectangular frame (35) is attached to the second supporting plate (3), the magnet (45) generates magnetic attraction force on the fixing rod (40), the magnetic attraction force of the magnet (45) is far larger than the elastic force of the fourth spring (44), the fixing rod (40) drives the fixing plate (43) to slide towards the direction of the magnet (45), the fourth spring (44) starts to be compressed, the fixing rod (40) is separated from the clamping groove (41), and the sliding rod (38) falls downwards under the gravity factor of the sliding rod (38) and just falls into the groove (39);
s4, when the deformation of the foundation pit (1) is increased, the deformation force generated by the deformation of the foundation pit (1) acts on the nut block (10) through the supporting arm (11) and the fixed arm (13) to enable the nut block (10) to generate a thrust force moving towards the middle, the nut block (10) pushes the inclined block (31) to move towards the middle through the first fixed block (30), because the inclined plane of the inclined block (31) is in sliding fit with the inner inclined plane of the second fixed block (28), the inclined block (31) and the inclined latch (37) slide obliquely downwards, the third spring (33) begins to stretch, the inclined latch (37) is in contact with the inner wall of the bottom of the foundation pit (1), the nut block (10), the supporting arm (11) and the fixed arm (13) can be supported by the friction force between the inclined latch (37) and the inner wall of the bottom of the foundation pit (1), when the foundation pit (1) deforms, the foundation pit (1) is supported in time, and the pressure sensor (18) can transmit the deformed data to the engineering part in time.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116220117A (en) * | 2023-03-09 | 2023-06-06 | 中国十七冶集团有限公司 | Foundation pit deformation monitoring equipment |
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| CN214940496U (en) * | 2021-07-23 | 2021-11-30 | 姚运红 | Building foundation pit deformation monitoring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116220117A (en) * | 2023-03-09 | 2023-06-06 | 中国十七冶集团有限公司 | Foundation pit deformation monitoring equipment |
| CN116220117B (en) * | 2023-03-09 | 2024-06-07 | 中国十七冶集团有限公司 | Foundation pit deformation monitoring equipment |
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| CN114541495B (en) | 2023-08-25 |
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