Foundation pit deformation monitoring structure and device

Abstract

This utility model belongs to the field of foundation pit monitoring technology, and discloses a foundation pit deformation monitoring structure and device. When the foundation pit deformation monitoring structure is initially installed, the insulating component abuts against the foundation pit surface, the first and second conductive components are interconnected, and the luminous indicator unit emits light normally. As the foundation pit deforms, the insulating component, under the action of gravity, drives the second conductive component to move along the deformation direction of the foundation pit surface. During this process, the luminous indicator unit located in the current loop turns off. The foundation pit monitoring process relies on the contact relationship between the insulating component and the foundation pit under the action of gravity, resulting in a fast response speed and strong monitoring timeliness. Workers can intuitively determine whether the foundation pit is deformed by observing the on / off state of the luminous indicator unit. The foundation pit deformation monitoring device includes a power supply and at least two of the above-mentioned foundation pit deformation monitoring structures, expanding the monitoring range of foundation pit deformation and realizing zoned monitoring of the foundation pit, thereby improving the monitoring accuracy and reliability of foundation pit deformation.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit monitoring technology, and in particular to a foundation pit deformation monitoring structure and device. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location according to the base elevation and foundation plan dimensions, providing underground construction space for work. To ensure the operational safety of existing stations, it is usually necessary to monitor the displacement or settlement of the excavation pit in real time. However, the excavation pit deformation monitoring devices used in the excavation of deep excavation pits near existing stations often suffer from poor monitoring performance and low accuracy.

[0003] To improve the accuracy of monitoring, a detection device for foundation pit settlement has been proposed, comprising a support column, a support crossbar, a positioning sleeve, and a detection rod. The detection rod contains a conductive component. Initially, the conductive component is connected to the power source, and a warning light illuminates when powered on. As the foundation pit settles, the conductive component moves down the detection rod, and the warning light turns off when the power is cut off, thus improving the monitoring accuracy.

[0004] However, in the aforementioned detection device, a flexible air storage component is installed at the bottom of the detection rod. Initially, the flexible air storage component is laid on the soil layer at the bottom of the foundation pit, and the warning light is lit when powered on. When the soil layer of the foundation pit covered by the flexible air storage component settles locally, the conductive component moves down along the inside of the detection rod, causing the warning light to go out. The conduction between the conductive component and the power supply depends on the expansion and deformation of the air bladder inside the flexible air storage component. However, the expansion and deformation of the air bladder itself requires a response time, resulting in a slow response speed and poor monitoring timeliness of the detection device. Utility Model Content

[0005] The purpose of this utility model is to provide a structure and device for monitoring foundation pit deformation, which can improve the response speed and monitoring timeliness of foundation pit deformation and improve the monitoring accuracy.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Firstly, this utility model proposes a foundation pit deformation monitoring structure, comprising:

[0008] The structure body has a positive electrode interface and a negative electrode interface spaced apart on it.

[0009] The monitoring auxiliary component includes a first conductive element, a second conductive element, and an insulating element. The first conductive element and the second conductive element are both disposed within the main body of the structure. The first conductive element is electrically connected to the negative electrode interface. The first end of the second conductive element is movably inserted through the first conductive element and electrically connected to the positive electrode interface. The second end of the second conductive element is connected to the insulating element. The insulating element can abut against the surface of the pit. The insulating element is configured to drive the second conductive element to move along the deformation direction of the pit surface.

[0010] The light-emitting indicator unit has one end that can be electrically connected to the positive terminal of the power supply, and the other end that can be electrically connected to the negative terminal of the power supply in sequence via the second conductive element and the first conductive element. The light-emitting indicator unit is used to indicate the conduction status of the first conductive element and the second conductive element.

[0011] Optionally, the first conductive member includes a first conductive portion and a second conductive portion that are interconnected and have an adjustable spacing. The first conductive portion and the second conductive portion are arranged to form a sliding space. The second conductive member slides through the sliding space and can abut against the first conductive portion and the second conductive portion.

[0012] Specifically, the monitoring auxiliary component also includes a first elastic element and a second elastic element. One end of the first elastic element is fixed to the structural body and the other end is fixed to the first conductive part. One end of the second elastic element is fixed to the structural body and the other end is fixed to the second conductive part.

[0013] Optionally, the first conductive element is provided with a groove extending through the height of the structure body, and the second conductive element can slide and engage with the groove.

[0014] Optionally, a guide member is also provided in the structure body, and a guide hole is provided through the guide member along the height direction of the structure body, and the insulating member can slide with the guide hole.

[0015] Specifically, a limiting part is provided at the end of the insulating member that is connected to the second conductive member, and the insulating member can slide to the limiting part and abut against the guide member.

[0016] Optionally, the foundation pit deformation monitoring structure also includes a measuring element configured to measure the amount of deformation on the surface of the foundation pit.

[0017] Specifically, the measuring element is a series of scale lines set on the outer wall of the structure body or a displacement sensor set on the insulating part.

[0018] Secondly, this utility model also proposes a foundation pit deformation monitoring device, including a power supply and at least two of the above-mentioned foundation pit deformation monitoring structures, wherein the at least two foundation pit deformation monitoring structures are arranged at intervals along the surface of the foundation pit and are all electrically connected to the power supply.

[0019] Optionally, the foundation pit deformation monitoring device also includes a horizontal elastic auxiliary component, and two adjacent insulating components are connected to each other through the horizontal elastic auxiliary component.

[0020] The beneficial effects of this utility model are:

[0021] This invention proposes a foundation pit deformation monitoring structure. Upon initial installation, the insulating component abuts against the foundation pit surface, and the first and second conductive components are interconnected, ensuring normal current flow. The luminous indicator unit located in the current loop illuminates normally. As the foundation pit deforms, the insulating component, under gravity, drives the connected second conductive component to move along the deformation direction of the foundation pit surface until the insulating component re-abuts against the surface. When the foundation pit deforms to the point where the second conductive component is no longer interconnected with the first conductive component, the luminous indicator unit in the current loop turns off. The foundation pit monitoring process relies on the contact relationship between the insulating component and the foundation pit under gravity, eliminating the need for feedback from other intermediate components. It features a fast response speed and high monitoring timeliness. Workers can directly observe the deformation of the foundation pit by monitoring the on / off state of the luminous indicator unit. The monitoring accuracy is high, and the operation difficulty of foundation pit deformation monitoring is low.

[0022] This invention also proposes a foundation pit deformation monitoring device, including a power supply and at least two of the aforementioned foundation pit deformation monitoring structures. The at least two foundation pit deformation monitoring structures are spaced apart along the surface of the foundation pit and are all electrically connected to the power supply. The foundation pit deformation monitoring device, with its at least two foundation pit deformation monitoring structures arranged at intervals, expands the monitoring range for foundation pit deformation and enables zoned monitoring of the foundation pit, thereby improving the accuracy and reliability of the monitoring. Since at least two foundation pit deformation monitoring structures are electrically connected to the power supply, the power supply can power the luminous indicator unit, allowing workers to determine whether the foundation pit is deformed by observing the on / off state of the luminous unit. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the foundation pit deformation monitoring structure described in this embodiment of the utility model;

[0024] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 This is a structural schematic diagram of the foundation pit deformation monitoring device described in an embodiment of this utility model.

[0026] In the picture:

[0027] 1. Main body structure; 11. Positive electrode interface; 12. Negative electrode interface;

[0028] 2. Monitoring auxiliary components; 21. First conductive element; 211. First conductive part; 212. Second conductive part; 22. Second conductive element; 23. Insulating element; 231. Limiting part; 24. First elastic element; 25. Second elastic element;

[0029] 3. Illuminated indicator unit;

[0030] 4. Guide components;

[0031] 5. Power supply;

[0032] 6. Horizontal elastic auxiliary components;

[0033] 7. Foundation pit support structure. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] like Figures 1-3As shown, this embodiment provides a foundation pit deformation monitoring structure, including a structural body 1, a monitoring auxiliary component 2, and a light-emitting indicator unit 3. The structural body 1 has a positive electrode interface 11 and a negative electrode interface 12 spaced apart. The monitoring auxiliary component 2 includes a first conductive element 21, a second conductive element 22, and an insulating element 23. Both the first conductive element 21 and the second conductive element 22 are disposed within the structural body 1. The first conductive element 21 is electrically connected to the negative electrode interface 12. The first end of the second conductive element 22 movably passes through the first conductive element 21 and is electrically connected to the positive electrode interface 11. The second end of the second conductive element 22 is connected to the insulating element 23. The insulating element 23 can abut against the foundation pit surface and is configured to drive the second conductive element 22 to move along the deformation direction of the foundation pit surface. One end of the light-emitting indicator unit 3 can be electrically connected to the positive electrode of a power supply 5, and the other end can be electrically connected to the negative electrode of the power supply 5 sequentially via the second conductive element 22 and the first conductive element 21. The light-emitting indicator unit 3 is used to indicate the conduction status of the first conductive element 21 and the second conductive element 22. It is understood that one end of the insulating member 23 is connected to the second end of the second conductive member 22, and the other end protrudes from the structural body 1 and can abut against the surface of the pit. The negative terminal interface 12 is electrically connected to the negative terminal of the power supply 5, and the positive terminal interface 11 is electrically connected to the positive terminal of the power supply 5. Exemplarily, the negative terminal interface 12 is a positive electrode post, and the positive terminal interface 11 is a negative electrode post. The light-emitting indicator unit 3 is a component such as an LED indicator light or a fluorescent indicator board that has the characteristic of emitting light when powered on and turning off when powered off. The specific structure and working principle are existing technologies and will not be described in detail here.

[0039] In this embodiment, when the foundation pit deformation monitoring structure is initially installed, the insulating component 23 abuts against the foundation pit surface, the first conductive component 21 and the second conductive component 22 are interconnected, the current loop is normally connected, and the light-emitting indicator unit 3 located on the current loop can emit light normally. As the foundation pit deforms, the insulating component 23 will drive the second conductive component 22 connected to it to move along the deformation direction of the foundation pit surface under the action of gravity until the insulating component 23 abuts against the foundation pit surface again. When the second conductive component 22 moves to the point where it is no longer interconnected with the first conductive component 21, the light-emitting indicator unit 3 located on the current loop will turn off. The foundation pit monitoring process relies on the contact relationship between the insulating component 23 and the foundation pit under the action of gravity, without the need for feedback from other intermediate components. The response speed is fast and the monitoring timeliness is strong. The staff can intuitively know the deformation of the foundation pit by observing the on and off status of the light-emitting indicator unit 3. The monitoring accuracy is high and the operation difficulty of foundation pit deformation monitoring is low. The first conductive element 21, the second conductive element 22, and at least part of the insulating element 23 are all located within the structure body 1. The foundation pit deformation monitoring structure proposed in this embodiment occupies a small area and has a high degree of integration among its components.

[0040] In some embodiments, the second conductive element 22 is slidably disposed through the first conductive element 21. Exemplarily, the first conductive element 21 may be a split structure, including a first conductive portion 211 and a second conductive portion 212 that are interconnected and have an adjustable spacing. The first conductive portion 211 and the second conductive portion 212 form a sliding space, and the second conductive element 22 slidably passes through the sliding space and can abut against the first conductive portion 211 and the second conductive portion 212. The adjustable spacing between the first conductive portion 211 and the second conductive portion 212 allows the first conductive element 21 in this embodiment to flexibly adapt to second conductive elements 22 of different sizes, meeting diverse needs when monitoring foundation pits with different deformation conditions. The second conductive element 22 slidably passes through the sliding space and can abut against the first conductive portion 211 and the second conductive portion 212. The second conductive element 22 has strong sliding stability, avoiding misleading current circuit continuity or disconnection due to unstable sliding of the second conductive element 22, thus improving the accuracy and reliability of foundation pit deformation monitoring results. The first conductive element 21 can also be an integral structure with a sliding groove extending through it along the height direction of the structural body 1. The second conductive element 22 can slide and engage with the sliding groove, which provides sliding guidance for the second conductive element 22 and improves its sliding stability. The sliding groove extending through it along the height direction of the structural body 1 meets the operational requirements of the foundation pit deformation monitoring structure in the foundation pit settlement monitoring scenario.

[0041] Specifically, the monitoring auxiliary component 2 also includes a first elastic element 24 and a second elastic element 25. One end of the first elastic element 24 is fixed to the structural body 1, and the other end is fixed to the first conductive part 211. One end of the second elastic element 25 is fixed to the structural body 1, and the other end is fixed to the second conductive part 212. The first elastic element 24 and the second elastic element 25 allow both the first conductive part 211 and the second conductive part 212 to move relative to the structural body 1, improving the flexibility of the second conductive part 22 when installed on the first conductive part 21. When an external force is applied to the structural body 1, the first elastic element 24 and the second elastic element 25 also reduce the displacement amplitude of the first conductive part 21 relative to the structural body 1, thereby ensuring the monitoring accuracy of the monitoring operation. The first conductive part 211 can be connected to the structural body 1 through multiple first elastic elements 24, and the second conductive part 212 can also be connected to the structural body 1 through multiple second elastic elements 25, thereby improving the connection strength between the first conductive part 211 and the second conductive part 212 and the structural body 1 respectively. In this embodiment, the first conductive part 211 is connected to the structural body 1 via two first elastic members 24, and the second conductive part 212 is connected to the structural body 1 via two second elastic members 25. It is understood that the elastic force exerted by the first elastic members 24 and second elastic members 25 on the first conductive part 21 is less than the force exerted on the insulating member 23 when the foundation pit deforms, ensuring that the insulating member 23 can smoothly drive the second conductive member 22 to move when the foundation pit deforms, thus ensuring the smooth progress of the monitoring operation.

[0042] In some other embodiments, a conductive roller is provided on the side of the second conductive element 22 near the first conductive element 21. When the insulating element 23 drives the second conductive element 22 to move along the deformation direction of the foundation pit, the conductive roller can roll and connect with the first conductive element 21. The conductive roller reduces the frictional resistance between the second conductive element 22 and the first conductive element 21, extends the service life of both elements, and improves the response speed of the second conductive element 22 under the action of the insulating element 23, thereby enhancing monitoring accuracy and timeliness.

[0043] Optionally, a guide member 4 is also provided inside the main body 1. The guide member 4 has a guide hole extending through it along the height direction of the main body 1, and the insulating member 23 can slide and engage with the guide hole. The provision of the guide member 4 and the guide hole extending through it along the height direction of the main body 1 effectively restricts the movement direction of the insulating member 23 driving the second conductive member 22, meeting the operational requirements of the foundation pit deformation monitoring structure in the foundation pit settlement monitoring scenario and improving the accuracy of the monitoring results.

[0044] Specifically, such as Figure 1 and Figure 2 As shown, a limiting part 231 is provided at the end of the insulating member 23 connected to the second conductive member 22, allowing the insulating member 23 to slide until the limiting part 231 abuts against the guide member 4. The limiting part 231 restricts the maximum sliding distance of the insulating member 23 under conditions of pit deformation, preventing the insulating member 23 and the second conductive member 22 from completely detaching from the structure body 1 during monitoring, thus reducing the reusability of the pit deformation monitoring structure components. The pit deformation monitoring structure can include insulating members 23 of different lengths to meet the requirements of accurate monitoring of pits with different deformation conditions, improving the structural versatility of the pit deformation monitoring structure. It is understood that when the limiting part 231 abuts against the guide member 4, or before abutting, the second conductive member 22 can achieve a conduction failure with the first conductive member 21, preventing the limiting effect of the limiting part 231 from affecting the conduction state of the first conductive member 21 and the second conductive member 22, thereby interfering with the indicating effect of the light-emitting indicator unit 3.

[0045] Preferably, the foundation pit deformation monitoring structure also includes a measuring element configured to measure the deformation of the foundation pit surface. This measuring element allows staff to easily obtain real-time deformation data, facilitating timely intervention when deformation is significant, reducing engineering quality issues caused by foundation pit deformation, and improving the safety of normal operations at existing operational stations. The deformation data measured by the measuring element can also be used to determine whether the lighting and extinguishing actions of the luminous indicator unit 3 are triggered correctly, improving the accuracy and reliability of the monitoring results.

[0046] For example, the measuring element is a series of scale lines set on the outer wall of the structure body 1, each scale line marked with a corresponding scale value. When the second conductive element 22 is initially installed on the first conductive element 21, the top surface of the second conductive element 22 is flush with the zero scale line. When the foundation pit deforms, the workers can clearly know the amount of deformation of the foundation pit by observing the scale line corresponding to the top surface of the second conductive element 22. The data reading is simple and the measurement cost is low. The measuring element can also be a displacement sensor set on the insulating element 23 or the second conductive element 22. The displacement sensor can obtain the displacement of the insulating element 23 or the second conductive element 22 in real time, thereby knowing the amount of deformation of the foundation pit. Setting up a displacement sensor improves the timeliness of obtaining the foundation pit deformation data and improves the measurement accuracy of the foundation pit deformation data. The specific structure and working principle of the displacement sensor are existing technologies and will not be described in detail here.

[0047] Secondly, such as Figure 3 As shown, this utility model also proposes a foundation pit deformation monitoring device, including a power supply 5 and at least two of the aforementioned foundation pit deformation monitoring structures. The at least two foundation pit deformation monitoring structures are spaced apart along the surface of the foundation pit and are all electrically connected to the power supply 5. The foundation pit deformation monitoring device, including at least two foundation pit deformation monitoring structures spaced apart, expands the monitoring range of foundation pit deformation and realizes zoned monitoring of the foundation pit, improving the monitoring accuracy and reliability. The at least two foundation pit deformation monitoring structures are all electrically connected to the power supply 5, which can power the luminous indicator unit 3, allowing workers to determine whether the foundation pit is deformed by observing the on / off state of the luminous unit. It is understood that the specific number of foundation pit deformation monitoring structures set in the foundation pit deformation monitoring device can be flexibly adjusted according to the scale of the foundation pit project.

[0048] Specifically, at least two foundation pit deformation monitoring structures can be connected in series and electrically connected to power supply 5. When at least two foundation pit deformation monitoring structures are connected in series, only one light-emitting indicator unit 3 needs to be set in the current loop, reducing the cost of foundation pit deformation monitoring operations. At least two foundation pit deformation monitoring structures can also be connected in parallel and electrically connected to power supply 5. Each foundation pit deformation monitoring structure can be equipped with a corresponding light-emitting indicator unit 3. By observing whether the light-emitting indicator unit 3 corresponding to each foundation pit deformation monitoring structure is lit, the staff can clearly determine the deformation of the foundation pit within the monitoring range corresponding to each foundation pit deformation monitoring structure, improving monitoring accuracy and precision.

[0049] Optionally, the foundation pit deformation monitoring device also includes a horizontal elastic auxiliary component 6, through which adjacent insulating components 23 are interconnected. When the foundation pit deforms, the insulating component 23 will shift relative to its adjacent insulating component 23. By observing the tilt or the degree of stretching at both ends of the horizontal elastic auxiliary component 6, workers can intuitively determine the deformation of the foundation pit monitoring range corresponding to each insulating component 23, reducing the difficulty of monitoring and improving monitoring accuracy and precision. For example, the horizontal elastic auxiliary component 6 can be a nylon rope or a rubber rope, etc.

[0050] To reduce the deformation of the foundation pit, a foundation pit support structure 7 is usually installed on the surface of the foundation pit. The foundation pit deformation monitoring device proposed in this embodiment is installed on the foundation pit support structure 7. When the foundation pit deforms, the position of the main body 1 relative to the foundation pit support structure 7 remains unchanged. When the foundation pit deforms, the second conductive element 22 installed inside the main body 1 moves along the direction of foundation pit deformation under the action of the insulating element 23. By observing the on / off state of the light-emitting indicator unit 3, the deformation of the foundation pit can be detected in a timely manner, facilitating timely intervention and adjustment of the foundation pit support structure 7 by staff, thereby reducing the safety hazards of existing operating stations caused by foundation pit deformation. Compared with the prior art where the foundation pit deformation monitoring structure is installed on auxiliary structures with supporting columns and crossbars, the foundation pit deformation monitoring device in this embodiment can be directly installed on the foundation pit support structure 7, reducing the occupation of internal space in the foundation pit.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A foundation pit deformation monitoring structure, characterized in that, include: The structure body (1) is provided with a positive electrode interface (11) and a negative electrode interface (12) spaced apart. The monitoring auxiliary component (2) includes a first conductive element (21), a second conductive element (22), and an insulating element (23). The first conductive element (21) and the second conductive element (22) are both disposed in the structure body (1). The first conductive element (21) is electrically connected to the negative electrode interface (12). The first end of the second conductive element (22) is movably inserted through the first conductive element (21) and electrically connected to the positive electrode interface (11). The second end of the second conductive element (22) is connected to the insulating element (23). The insulating element (23) can abut against the surface of the pit. The insulating element (23) is configured to drive the second conductive element (22) to move along the deformation direction of the pit surface. The light-emitting indicator unit (3) has one end that can be electrically connected to the positive terminal of the power supply (5), and the other end that can be electrically connected to the negative terminal of the power supply (5) via the second conductive element (22) and the first conductive element (21) in sequence. The light-emitting indicator unit (3) is used to indicate the conduction status of the first conductive element (21) and the second conductive element (22).

2. The foundation pit deformation monitoring structure according to claim 1, characterized in that, The first conductive element (21) includes a first conductive part (211) and a second conductive part (212) that are connected to each other and have an adjustable spacing. The first conductive part (211) and the second conductive part (212) surround and form a sliding space. The second conductive element (22) slides through the sliding space and can abut against the first conductive part (211) and the second conductive part (212).

3. The foundation pit deformation monitoring structure according to claim 2, characterized in that, The monitoring auxiliary component (2) further includes a first elastic element (24) and a second elastic element (25). One end of the first elastic element (24) is fixed to the structural body (1) and the other end is fixed to the first conductive part (211). One end of the second elastic element (25) is fixed to the structural body (1) and the other end is fixed to the second conductive part (212).

4. The foundation pit deformation monitoring structure according to claim 1, characterized in that, The first conductive element (21) has a groove extending through it along the height direction of the structure body (1), and the second conductive element (22) can slide and engage with the groove.

5. The foundation pit deformation monitoring structure according to claim 1, characterized in that, The structure body (1) is also provided with a guide member (4), and the guide member (4) has a guide hole through it along the height direction of the structure body (1). The insulating member (23) can slide with the guide hole.

6. The foundation pit deformation monitoring structure according to claim 5, characterized in that, The insulating member (23) is provided with a limiting part (231) at one end connected to the second conductive member (22), and the insulating member (23) can slide until the limiting part (231) abuts against the guide member (4).

7. The foundation pit deformation monitoring structure according to any one of claims 1-6, characterized in that, The foundation pit deformation monitoring structure also includes a measuring element configured to measure the amount of deformation on the surface of the foundation pit.

8. The foundation pit deformation monitoring structure according to claim 7, characterized in that, The measuring element is a series of scale lines set on the outer wall of the structure body (1) or a displacement sensor set on the insulating element (23).

9. A foundation pit deformation monitoring device, characterized in that, It includes a power supply (5) and at least two foundation pit deformation monitoring structures as described in any one of claims 1-8, wherein the at least two foundation pit deformation monitoring structures are spaced apart along the surface of the foundation pit and are electrically connected to the power supply (5).

10. The foundation pit deformation monitoring device according to claim 9, characterized in that, The foundation pit deformation monitoring device also includes a horizontal elastic auxiliary component (6), and two adjacent insulating components (23) are connected to each other through the horizontal elastic auxiliary component (6).

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