Real-time deformation monitoring device for deep and large foundation pit construction and monitoring method thereof

Abstract

The invention relates to the technical field of foundation pit support monitoring, and provides a deep and large foundation pit construction real-time deformation monitoring device and a monitoring method thereof.The deep and large foundation pit construction real-time deformation monitoring device comprises an engineering van and a mechanical arm installed on the engineering van, a stabilizing mechanism is installed in the engineering van, and a stability maintaining assembly is arranged at the top of the engineering van; a total station is mounted at the top of the stability maintaining assembly; the side face of the mechanical arm abuts against the middle of the second folding plate, force for preventing the second folding plate from toppling over the wall face is provided for the second folding plate, collapse of the wall face can be relieved, escape time is provided for workers, and if the workers cannot escape in time, the workers can hide in the hiding space between the second folding plate and an engineering vehicle; the sliding plate II pops up from the sliding groove I, and the width of the sliding plate I is expanded, so that the blocking position of the sliding plate I is expanded; and meanwhile, a rubber head on the first folded plate makes contact with the top of the engineering vehicle and compresses a spring, when soil on the top falls down, the spring plays a buffering role, and damage to the engineering vehicle is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of foundation pit support monitoring, in particular to a real-time deformation monitoring device for deep and large foundation pit construction and a monitoring method thereof. Background Art

[0002] A deep foundation pit refers to an engineering project with an excavation depth of more than 5 meters (including 5 meters), or a project with a depth of less than 5 meters but particularly complex geological conditions, surrounding environment and underground pipelines. The foundation pit project mainly includes the design and construction of the foundation pit support system and earth excavation. It is a highly comprehensive system engineering project, which requires close cooperation between geotechnical engineering and structural engineering technicians. The foundation pit support system is a temporary structure. Its function is to provide a space so that the foundation masonry work can be carried out in the position specified by the design. It is no longer needed after the underground engineering construction is completed. Its safety reserve is small and it has a greater risk. During the construction of the foundation pit project, monitoring should be strengthened, and efforts should be made to implement information-based construction. Emergency measures should be taken. Once a dangerous situation occurs during the construction process, timely rescue is required.

[0003] However, the existing deformation monitoring devices and methods for deep foundation pit construction still have some shortcomings; on the one hand, due to the complexity of the construction site environment, such as vibration, temperature change, electromagnetic interference and other factors, the normal operation of the monitoring instrument is often interfered, resulting in inaccurate or unstable monitoring data, especially in a vibrating environment, the monitoring instrument may be damaged due to the inability to withstand long-term vibration, thereby affecting the continuity and accuracy of monitoring; on the other hand, although the existing monitoring technology can monitor the deformation of the foundation pit in real time, when abnormal conditions in the foundation pit are detected, there is often a lack of timely and effective protective measures. This is mainly because the existing monitoring systems mostly focus on data collection and analysis, but ignore the real-time processing of data and the construction of emergency response mechanisms. Once the foundation pit is deformed or unstable, manual intervention is often required to take corresponding remedial measures, which not only delays the rescue time, but may also aggravate the severity of the accident. Summary of the invention

[0004] The invention provides a real-time deformation monitoring device for deep and large foundation pit construction and a monitoring method thereof. A roller rolls on a limit plate by gravity, so that a fixed plate drives a total station to always maintain a balanced state; and a mechanical arm uses a side surface to support the middle part of a folding plate 2, so as to provide a force for the folding plate 2 to block the collapse of a wall surface, thereby slowing down the collapse of the wall surface and providing time for workers to escape. If there is no time to escape, workers can also hide in a hiding space between the folding plate 2 and a construction vehicle, so as to solve the problems existing in the background technology.

[0005] The technical solution of the present invention is as follows:

[0006] A real-time deformation monitoring device for deep and large foundation pit construction, comprising an engineering vehicle and a mechanical arm installed on the engineering vehicle, a stabilizing mechanism installed inside the engineering vehicle, a stabilizing component installed on the top of the engineering vehicle, and a total station installed on the top of the stabilizing component;

[0007] The stabilizing mechanism comprises a through slot 1 provided on the bottom plate of the engineering vehicle, a through slot 2 provided on the bottom plate of the engineering vehicle and located on the top of the through slot 1, and a slide plate 1 slidably connected in the through slot 1;

[0008] The stabilization maintenance component includes a limit plate fixedly connected to the top of the engineering vehicle, and there are two limit plates in total. The tops of the two limit plates are respectively slidably connected to two rollers, and the opposite sides of the two rollers are rotatably connected to the limit rod. A telescopic rod 1 is fixedly connected between the limit plates, and the output end of the telescopic rod 1 is fixedly connected to an end of the limit rod away from the telescopic rod 1, and the top of the limit rod is fixedly connected to a fixed plate.

[0009] Furthermore, a folding plate 1 is slidably connected inside the slide plate 1, a folding plate 2 is arranged on one side of the folding plate 1, and a sliding groove 1 is provided on both sides of the bottom of the folding plate 1 and the folding plate 2 in the slide plate 1.

[0010] Furthermore, an elastic member 1 is fixedly connected to the bottom of the slide groove 1, and a slide plate 2 is fixedly connected to the end of the elastic member 1 that is not connected to the slide groove 1.

[0011] Furthermore, the folding plate 1 and the folding plate 2 are connected by a hinge, and sliding grooves 2 are staggered on both sides of the folding plate 1. An elastic member 2 is fixedly connected to the inner wall of the sliding groove 2, and an end of the elastic member 2 that is not connected to the sliding groove 2 is fixedly connected to a folding plate 3, and an end of the folding plate 3 away from the elastic member 2 is connected to a folding plate 4 by a hinge.

[0012] Furthermore, a spring is fixedly connected to the top of the folding plate one, and a plurality of springs are provided. An end of the spring away from the folding plate one is fixedly connected to a rubber head. A handle is provided on the top of the folding plate one in the through groove two, and the handle is fixedly connected to the folding plate one. An end of the folding plate two close to the folding plate one is fixedly connected to a horizontal plate.

[0013] Furthermore, the middle of the top of the limit plate is arc-shaped, and the track on the limit plate for the roller to slide is located deeper between the semicircular blocks. When the roller rolls to this place, it will sink downward. Therefore, when both rollers are sunk there, the semicircular blocks on both sides will act as resistance to the rollers, so that when the engineering vehicle drives to a fixed position, the rollers can quickly stop rotating.

[0014] Furthermore, semicircular blocks are provided on the opposite sides of the two limit plates, two semicircular blocks are fixedly connected to each limit plate, the distance between the two semicircular blocks is the width of the limit rod, a sliding groove is provided on the limit plate, a protective plate is slidably connected in the sliding groove, one end of the protective plate is fixedly connected to a fixing rod, an end of the fixing rod away from the protective plate is fixedly connected to a telescopic rod, and the end of the telescopic rod away from the protective plate is fixedly connected to one side of the slide plate.

[0015] A real-time deformation monitoring method for deep and large foundation pit construction, the steps of which are as follows:

[0016] S1. Drive the engineering vehicle to the predetermined inspection location;

[0017] S2. Maintain the stability of the total station through stabilization components;

[0018] S3. When the monitoring device detects a problem, the stabilizing mechanism is automatically activated.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention allows the roller to roll on the limit plate through gravity, so that the fixed plate always maintains a balanced state. When the ground at the location where the engineering vehicle is parked is not flat, the fixed plate can keep the total station always in a balanced state, and when the roller drives the limit rod and the fixed plate to move synchronously, the telescopic rod shrinks synchronously with the limit rod to limit the moving distance of the limit rod; when the two rollers are sunk in that position, the semicircular blocks on both sides enable the rollers to stop rotating quickly, and when the ground vibrates due to the use of other machinery, the total station is not easily affected, thereby ensuring the continuity and accuracy of monitoring.

[0021] 2. The present invention uses the side of the mechanical arm to support the middle part of the folding plate 2, so as to provide the folding plate 2 with a force to block the falling wall, thereby slowing down the collapse of the wall and providing the workers with time to escape. If they do not have time to escape, they can also hide in the hiding space between the folding plate 2 and the engineering vehicle; the slide plate 2 pops out from the slide groove 1, expanding the width of the slide plate 1, so that the position that the slide plate 1 can block is expanded; at the same time, the rubber head on the folding plate 1 contacts the top of the engineering vehicle and compresses the spring. When the soil on the top falls downward, the spring plays a buffering role to reduce the damage to the engineering vehicle.

[0022] 3. The present invention uses elastic member 2 to pop out folding plate 3 and folding plate 4, and folding plate 4 leaves slide groove 2 and bends in the direction of the spring to protect both sides of the engineering vehicle. When slide plate 1 slides out to through groove 1, it drives the telescopic rod to move synchronously. When the mechanical arm drives slide plate 1 to rotate toward the front of the engineering vehicle, it drives the telescopic rod to rotate synchronously. The telescopic rod drives the fixed rod and the protective plate to rotate. The protective plate moves to the top of the total station to protect the total station, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a stereogram of the device of the present invention;

[0024] Figure 2 It is a partial structural diagram of the device of the present invention;

[0025] Figure 3 It is a structural diagram of the stabilizing mechanism of the device of the present invention;

[0026] Figure 4 This is a structural diagram of a through slot of the device of the present invention;

[0027] Figure 5 This is a structural diagram of a slideway of the device of the present invention;

[0028] Figure 6 The present invention Figure 1 Enlarged view of point A in the middle;

[0029] Figure 7 It is a structural diagram of the stabilization component of the device of the present invention;

[0030] Figure 8 It is a cross-sectional view of the limiting plate of the device of the present invention.

[0031] In the figure:

[0032] 1. Engineering vehicle; 2. Robotic arm; 3. Stabilizing mechanism; 31. Through slot one; 311. Folding plate one; 3111. Spring; 3112. Rubber head; 3113. Handle; 312. Folding plate two; 3121. Horizontal plate; 313. Slide slot one; 314. Elastic part one; 315. Slide plate two; 32. Through slot two; 321. Slide slot two; 322. Elastic part two; 323. Folding plate three; 324. Folding plate four; 33. Slide plate one; 4. Stabilizing component; 41. Limiting plate; 411. Semicircular block; 412. Slide slot; 413. Protective plate; 414. Fixed rod; 415. Telescopic rod; 42. Roller; 43. Limiting rod; 44. Telescopic rod one; 45. Fixed plate; 5. Total station. DETAILED DESCRIPTION

[0033] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] like Figure 1-8 As shown, the present invention provides a real-time deformation monitoring device for deep and large foundation pit construction, an engineering vehicle 1, and the mechanical arm 2 installed on the engineering vehicle 1, a stabilizing mechanism 3 is installed inside the engineering vehicle 1, a stabilizing component 4 is arranged on the top of the engineering vehicle 1, and a total station 5 is installed on the top of the stabilizing component 4;

[0035] The stabilizing mechanism 3 includes a through slot 1 31 formed on the bottom plate of the engineering vehicle 1, a through slot 2 32 formed on the bottom plate of the engineering vehicle 1 and located on the top of the through slot 1 31, and a slide plate 1 33 is slidably connected in the through slot 1 31;

[0036] The stabilization maintenance component 4 includes a limit plate 41 fixedly connected to the top of the engineering vehicle 1, and there are two limit plates 41 in total. The tops of the two limit plates 41 are respectively slidably connected to two rollers 42, and the opposite sides of the two rollers 42 are rotatably connected to a limit rod 43. A telescopic rod 44 is fixedly connected between the limit plates 41, and the output end of the telescopic rod 44 is fixedly connected to the end of the limit rod 43 away from the telescopic rod 44, and a fixed plate 45 is fixedly connected to the top of the limit rod 43.

[0037] As a technical solution of the present invention, a folding plate 311 is slidably connected inside the slide plate 33, a folding plate 312 is arranged on one side of the folding plate 311, and a sliding groove 313 is provided on both sides of the bottom of the folding plate 311 and the folding plate 312 in the slide plate 33.

[0038] As a technical solution of the present invention, an elastic member 314 is fixedly connected to the bottom of the slide groove 1 313 , and a slide plate 2 315 is fixedly connected to the end of the elastic member 314 not connected to the slide groove 1 313 .

[0039] As a technical solution of the present invention, the folding plate 1 311 and the folding plate 2 312 are connected by a hinge, and the two sides of the folding plate 1 311 are staggered with sliding grooves 2 321, and the inner wall of the sliding groove 2 321 is fixedly connected with an elastic member 2 322, and the end of the elastic member 2 322 not connected to the sliding groove 2 321 is fixedly connected with a folding plate 3 323, and the end of the folding plate 323 away from the elastic member 2 322 is connected with a folding plate 4 324 through a hinge.

[0040] As a technical solution of the present invention, a spring 3111 is fixedly connected to the top of the folding plate 1 311, and a plurality of springs 3111 are provided. One end of the spring 3111 away from the folding plate 1 311 is fixedly connected to a rubber head 3112. A handle 3113 is provided at the top of the folding plate 1 311 in the through groove 2 32. The handle 3113 is fixedly connected to the folding plate 1 311. An end of the folding plate 2 312 close to the folding plate 1 311 is fixedly connected to a horizontal plate 3121 to provide support for the folding plate 1 311.

[0041] As a technical solution of the present invention, the middle of the top of the limit plate 41 is arc-shaped, and the track on the limit plate 41 for the roller 42 to slide is located between the semicircular blocks 411 at a deeper depth. When the roller 42 rolls to this place, it will sink downward. Therefore, when both rollers 42 are sunken there, the semicircular blocks 411 on both sides will act as resistance to the roller 42, so that when the engineering vehicle 1 is driven to a fixed position, the roller 42 can quickly stop rotating.

[0042] As a technical solution of the present invention, a semicircular block 411 is provided on one side opposite to the two limit plates 41, and two semicircular blocks 411 are fixedly connected to each limit plate 41, and the distance between the two semicircular blocks 411 is the width of the limit rod 43. A sliding groove 412 is provided on the limit plate 41, and a protective plate 413 is slidably connected in the sliding groove 412, and one end of the protective plate 413 is fixedly connected to a fixing rod 414, and one end of the fixing rod 414 away from the protective plate 413 is fixedly connected to a telescopic rod 415, and one end of the telescopic rod 415 away from the protective plate 413 is fixedly connected to one side of the slide plate 33.

[0043] A real-time deformation monitoring method for deep and large foundation pit construction, the steps of which are as follows:

[0044] S1, driving the engineering vehicle 1 to a predetermined testing position;

[0045] S2, maintaining the stability of the total station through the stabilization component 4;

[0046] S3. When the monitoring device detects a problem, the stabilizing mechanism 3 is automatically started.

[0047] Working principle:

[0048] like Figure 4-8As shown, the staff drives the engineering vehicle 1 to the position where the inclinometer needs to be detected, and puts the inclinometer into the ground through the mechanical arm 2. At the same time, when it reaches the detection position, the total station 5 can be started synchronously to monitor the deformation of the foundation pit. When the engineering vehicle 1 is started, the total station 5 is on the fixed plate 44. When encountering a slope, the roller 42 rolls on the limit plate 41 through gravity, so that the fixed plate 44 always maintains a balanced state. When the ground at the position where the engineering vehicle 1 is parked is not flat, the fixed plate 44 can keep the total station 5 in a balanced state. When the roller 42 drives the limit rod 43 and the fixed plate 44 to move synchronously, The telescopic rod 414 shrinks synchronously with the limit rod 43 to limit the moving distance of the limit rod 43; since the track on the limit plate 41 for the roller 42 to slide is located at a deeper depth between the semicircular blocks 411, the roller 42 will sink when it rolls to this place. Therefore, when both rollers 42 are sunken there, the semicircular blocks 411 on both sides will act as resistance to the roller 42, so that when the engineering vehicle 1 is driven to a fixed position, the roller 42 can be quickly stopped from rotating, and when the ground vibrates due to the use of other machinery, the total station 5 is not easily affected, thereby ensuring the continuity and accuracy of monitoring.

[0049] like Figure 1-5As shown, when deformation is detected at this position, the total station 5 and the inclinometer can quickly react to the terminal, and at the same time drive the mechanical arm 2 to grab the handle 3113, and drag the handle 3113 to the outside of the through slot 32, so that the slide plate 33 slides out of the through slot 31, and the slide plate 33 is inserted into the ground, and at the same time releases the handle 3113, the mechanical arm 2 uses the side to support the middle part of the folding plate 2 312, and provides the folding plate 2 312 with a force to prevent the wall from falling, which can slow down the collapse of the wall and provide an escape opportunity for the staff. When the slide plate 1 33 slides out of the through slot 1 31, the elastic members 1 314 on both sides of the slide plate 1 33 pop out the slide plate 2 315 from the slide slot 1 313, expanding the width of the slide plate 1 33 so that the position that the slide plate 1 33 can block is expanded; since the folding plate 1 311 and the folding plate 2 312 are connected by a hinge, when the slide plate 1 33 is inserted into the ground, the folding plate 2 312 is pushed upward, and the folding plate 2 312 pushes The movable folding plate 1 311 slides out of the through slot 1 31, and at this time, the folding plate 1 311 bends toward the engineering vehicle 1, and the cross plate prevents the folding plate 1 311 from continuing to bend downward. At the same time, the rubber head 3112 on the folding plate 1 311 contacts the top of the engineering vehicle 1 and compresses the spring 3111. When the soil on the top falls downward, the spring 3111 plays a buffering role to reduce the damage to the engineering vehicle 1; when the folding plate 1 311 leaves the through slot 1 31, the elastic member 2 322 pops out the folding plate 323 and the folding plate 4 324, and the folding plate 4 324 leaves the slide groove 321 and bends in the direction of the spring 3111 to protect both sides of the engineering vehicle 1, and when the slide plate 33 slides out of the through groove 31, it drives the telescopic rod 414 to move synchronously. When the mechanical arm 2 drives the slide plate 33 to rotate toward the front of the engineering vehicle 1, it drives the telescopic rod 414 to rotate synchronously. The telescopic rod 414 drives the fixed rod 413 and the protection plate 412 to rotate, and the protection plate 412 rotates to the top of the total station 5 to protect the total station 5, thereby reducing the maintenance cost.

[0050] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A real-time deformation monitoring device and monitoring method for deep and large foundation pit construction, comprising: An engineering vehicle (1), and a mechanical arm (2) installed on the engineering vehicle (1), characterized in that: a stabilizing mechanism (3) is installed inside the engineering vehicle (1), a stabilizing component (4) is arranged on the top of the engineering vehicle (1), and a total station (5) is installed on the top of the stabilizing component (4); The stabilizing mechanism (3) comprises a through slot (31) provided on the bottom plate of the engineering vehicle (1), a through slot (32) provided on the bottom plate of the engineering vehicle (1) and located on the top of the through slot (31), and a slide plate (33) slidably connected in the through slot (31); The stabilization component (4) comprises a limit plate (41) fixedly connected to the top of the engineering vehicle (1), wherein two limit plates (41) are provided, and two rollers (42) are slidably connected to the tops of the two limit plates (41) respectively, and the opposite sides of the two rollers (42) are rotatably connected to a limit rod (43), and a telescopic rod (44) is fixedly connected between the limit plates (41), and the output end of the telescopic rod (44) is fixedly connected to an end of the limit rod (43) away from the telescopic rod (44), and a fixed plate (45) is fixedly connected to the top of the limit rod (43).

2. A real-time deformation monitoring device for deep and large foundation pit construction as claimed in claim 1, characterized in that: A folding plate (311) is slidably connected inside the slide plate (33), a folding plate (312) is arranged on one side of the folding plate (311), and a sliding groove (313) is provided on both sides of the bottom of the folding plate (311) and the folding plate (312) inside the slide plate (33).

3. A real-time deformation monitoring device for deep and large foundation pit construction as claimed in claim 2, characterized in that: The bottom of the slide groove 1 (313) is fixedly connected to an elastic member 1 (314), and the end of the elastic member 1 (314) not connected to the slide groove 1 (313) is fixedly connected to a slide plate 2 (315).

4. A real-time deformation monitoring device for deep and large foundation pit construction as claimed in claim 3, characterized in that: The folding plate 1 (311) and the folding plate 2 (312) are connected by a hinge, and the two sides of the folding plate 1 (311) are staggered with sliding grooves 2 (321), and the inner wall of the sliding groove 2 (321) is fixedly connected with an elastic member 2 (322), and the end of the elastic member 2 (322) not connected to the sliding groove 2 (321) is fixedly connected with a folding plate 3 (323), and the end of the folding plate 3 (323) away from the elastic member 2 (322) is connected with a folding plate 4 (324) by a hinge.

5. A real-time deformation monitoring device for deep and large foundation pit construction as claimed in claim 2, characterized in that: The top of the folding plate one (311) is fixedly connected with a spring (3111), and a plurality of springs (3111) are provided. One end of the spring (3111) away from the folding plate one (311) is fixedly connected with a rubber head (3112). The top of the folding plate one (311) is located in the through groove two (32) and is provided with a handle (3113). The handle (3113) is fixedly connected with the folding plate one (311), and one end of the folding plate two (312) close to the folding plate one (311) is fixedly connected with a transverse plate (3121).

6. A real-time deformation monitoring device for deep and large foundation pit construction as claimed in claim 1, characterized in that: The middle of the top of the limiting plate (41) is arc-shaped, and the track on the limiting plate (41) for the roller (42) to slide is located between the semicircular blocks (411) and has a relatively deep depth.

7. A real-time deformation monitoring device for deep and large foundation pit construction as claimed in claim 1, characterized in that: A semicircular block (411) is provided on one side opposite to the two limiting plates (41), and two semicircular blocks (411) are fixedly connected to each limiting plate (41), and the distance between the two semicircular blocks (411) is the width of the limiting rod (43). A sliding groove (412) is provided on the limiting plate (41), and a protective plate (413) is slidably connected in the sliding groove (412), and one end of the protective plate (413) is fixedly connected to a fixing rod (414), and one end of the fixing rod (414) away from the protective plate (413) is fixedly connected to a telescopic rod (415), and one end of the telescopic rod (415) away from the protective plate (413) is fixedly connected to one side of the slide plate (33).

8. A real-time deformation monitoring method for deep and large foundation pit construction, characterized in that: A real-time deformation monitoring device for deep and large foundation pit construction according to claims 1 to 7, the steps are as follows: S1, driving the engineering vehicle (1) to a predetermined inspection location; S2, maintaining the stability of the total station through the stabilization component (4); S3. When the monitoring device detects a problem, the stabilizing mechanism (3) is automatically activated.

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