Self-adaptive early warning reinforcement system for displacement of deep foundation pit slope

Abstract

The invention relates to the technical field of foundation pit supporting, and discloses a deep foundation pit slope displacement self-adaption early warning reinforcing system which comprises a foundation pit body and further comprises a supporting mechanism arranged at the position of a foundation pit slope, the supporting mechanism comprises a bottom plate arranged at the bottom of a foundation pit, and a supporting plate abutting against the slope is rotationally installed on the bottom plate; a mounting table is fixedly mounted on the bottom plate, a sliding groove is formed in the mounting table, a sliding block driven by an adjusting part is slidably mounted in the sliding groove, an abutting rod driven by an electric push rod is slidably mounted in the sliding block, the detection assembly triggers a control instruction to drive the electric push rod to work, and the electric push rod pushes the abutting rod to slide along the sliding block after being started. The abutting rod drives the abutting plate to move towards the supporting plate and tightly abut against the supporting plate, lateral pressure of the slope on the supporting plate is counteracted through attached supporting of the abutting plate and the supporting plate, the supporting plate is prevented from further rotating, and therefore self-adaptive reinforcement of slope displacement is achieved.

Description

Technical Field

[0001] This invention relates to the field of foundation pit support technology, and in particular to an adaptive early warning and reinforcement system for deep foundation pit slope displacement. Background Technology

[0002] With the acceleration of urbanization, the scale of underground space development continues to expand. Deep foundation pit engineering has become a key link in the construction of infrastructure such as high-rise buildings, rail transit, and underground utility tunnels. The stability of the deep foundation pit slope is directly related to the safety of engineering construction and the normal operation of surrounding buildings and underground pipelines. It is a core risk point that needs to be controlled during the construction of deep foundation pit engineering, and its protective effect directly determines the overall safety level of the project.

[0003] During the construction of deep foundation pits, slopes are easily affected by various factors such as soil self-weight, changes in geological conditions, and construction disturbances, making them prone to displacement and deformation. If timely detection and effective reinforcement measures are not taken, serious geological disasters such as slope collapse may occur, causing casualties and property losses. Therefore, real-time monitoring and timely early warning of deep foundation pit slope displacement, as well as rapid implementation of targeted reinforcement measures, are key requirements for ensuring the safe construction of deep foundation pit projects and an important direction for continuous exploration in the industry.

[0004] Current technologies for protecting deep foundation pit slope displacement have significant shortcomings. The monitoring and reinforcement processes lack efficient coordination, often requiring manual intervention to assess the displacement before initiating reinforcement operations. This results in a delayed response and difficulty in quickly addressing sudden slope displacement. Furthermore, the reinforcement structures lack adaptability, failing to flexibly adjust the support position and strength according to different slope shapes and displacement characteristics. Consequently, the support force cannot be accurately applied to the critical stress points of the slope, affecting the reinforcement effect. Summary of the Invention

[0005] The purpose of this invention is to address the significant shortcomings of existing protection schemes for deep foundation pit slope displacement. These schemes lack efficient coordination between monitoring and reinforcement, often requiring manual intervention to assess displacement before initiating reinforcement operations. This results in delayed response and difficulty in quickly addressing sudden slope displacement. Furthermore, the reinforcement structures lack adaptability, failing to flexibly adjust support positions and strengths according to different slope morphologies and displacement characteristics. Consequently, the support force cannot be accurately applied to key stress-bearing parts of the slope, affecting the reinforcement effect. Therefore, this invention proposes an adaptive early warning reinforcement system for deep foundation pit slope displacement.

[0006] To achieve the above objectives, the present invention employs the following technology: a deep foundation pit slope displacement adaptive early warning and reinforcement system, comprising a foundation pit body, and further comprising: A support mechanism installed at the slope of a foundation pit includes a base plate at the bottom of the foundation pit, a support plate rotatably mounted on the base plate to abut against the slope, an installation platform fixedly mounted on the base plate, a sliding groove on the installation platform, a slider driven by an adjusting component slidably mounted in the sliding groove, a stop rod driven by an electric push rod slidably mounted in the slider, the electric push rod fixedly mounted on the slider, a stop plate rotatably mounted on the stop rod, a movable groove on the support plate, and the base plate slidably connected to the inner wall of the movable groove. The detection component is mounted on the mounting platform and is used to detect the rotation range of the support plate caused by the slope and drive the electric push rod to work.

[0007] As a further description of the above-mentioned technology, a deep foundation pit slope displacement adaptive early warning and reinforcement system is as follows: The adjusting component includes a threaded rod rotatably mounted on the slider, the threaded rod being threadedly connected to the mounting platform, and a turntable being fixedly mounted on the threaded rod.

[0008] As a further description of the above-mentioned technology, a deep foundation pit slope displacement adaptive early warning and reinforcement system is as follows: The detection assembly includes a pair of mounting cylinders fixedly mounted on a mounting platform. A displacement sensor is fixedly installed inside the mounting cylinder, and a movable rod is slidably installed inside the mounting cylinder. The detection end of the displacement sensor is fixedly connected to the movable rod, and the end of the movable rod away from the mounting cylinder abuts against a support plate.

[0009] As a further description of the above-mentioned technology, a deep foundation pit slope displacement adaptive early warning and reinforcement system is as follows: A first spring is fixedly installed on the displacement sensor, and the other end of the first spring is fixedly connected to the movable rod.

[0010] As a further description of the above-mentioned technology, a deep foundation pit slope displacement adaptive early warning and reinforcement system is as follows: The support plate is provided with an auxiliary component, which includes an installation cavity opened in the support plate. A locking block is slidably installed in the installation cavity, and a spring sheet is fixedly installed on the locking block. The other end of the spring sheet is fixedly connected to the inner wall of the installation cavity. The support plate has a slot that cooperates with the locking block. When the locking block moves downward, it abuts against the slot, causing the locking block to retract into the installation cavity and squeeze the spring sheet. When the locking block has an upward tendency, it will be locked by the slot to improve the support force.

[0011] As a further description of the above-mentioned technology, a deep foundation pit slope displacement adaptive early warning and reinforcement system is as follows: The base plate is provided with several prevention components, each including an arc-shaped support rod fixedly installed on the base plate, and a telescopic component that is limited by a limiting rod is slidably installed inside the arc-shaped support rod.

[0012] As a further description of the above-mentioned technology, a deep foundation pit slope displacement adaptive early warning and reinforcement system is as follows: The limiting rod is slidably installed inside the arc-shaped support rod. The telescopic component has several equidistant limiting holes that cooperate with the limiting rod. One end of the second spring is fixedly installed on the limiting rod, and the other end of the second spring is fixedly connected to the arc-shaped support rod.

[0013] As a further description of the above-mentioned technology, a deep foundation pit slope displacement adaptive early warning and reinforcement system is as follows: A reinforcement assembly is provided on the base plate. The reinforcement assembly includes a reinforcement rod that is slidably installed on the base plate. One end of the reinforcement rod passes through the base plate and is inserted into the pit.

[0014] As a further description of the above-mentioned technology, a deep foundation pit slope displacement adaptive early warning and reinforcement system is as follows: A set of insert rods is slidably installed inside the reinforcing rod. An installation cavity is opened inside the reinforcing rod. An installation cavity is rotatably installed inside the installation cavity. A set of arc-shaped adjustment plates is fixedly installed on the adjustment plate. The arc-shaped adjustment plates abut against the insert rods. A connecting rod is fixedly installed on the adjustment plate.

[0015] As a further description of the above-mentioned technology, a deep foundation pit slope displacement adaptive early warning and reinforcement system is as follows: A photovoltaic energy storage module is installed on the base plate to provide power for the displacement sensor and the electric actuator.

[0016] In summary, due to the adoption of the above-mentioned technology in the deep foundation pit slope displacement adaptive early warning and reinforcement system, the beneficial effects of this invention are: 1. When the slope of a deep foundation pit shifts, it exerts lateral pressure on the supporting plate, causing the supporting plate to rotate around the rotational connection between the bottom plate and the supporting plate. The detection component captures the rotation amplitude signal of the supporting plate in real time. When the rotation amplitude reaches a preset threshold, the detection component triggers a control command to drive the electric push rod. After the electric push rod starts, it pushes the abutment rod to slide along the slider. The abutment rod drives the abutment plate to move towards the supporting plate and presses it tightly against the supporting plate. Through the close contact support between the abutment plate and the supporting plate, the lateral pressure of the slope on the supporting plate is offset, preventing the supporting plate from rotating further. This achieves adaptive reinforcement of the slope displacement. At the same time, the slider can be driven to slide along the groove of the mounting platform through the adjustment component to adjust the overall position of the slider, electric push rod and abutment rod to adapt to different slope shapes and support requirements, ensuring that the support force is accurately applied to the key stress parts of the supporting plate.

[0017] 2. When the support plate is not rotating, the movable rod remains in contact with the support plate, and the detection end of the displacement sensor is in the initial detection position. When the slope displacement pushes the support plate to rotate, the support plate will generate a thrust or pull force on the movable rod, causing the movable rod to slide along the inside of the mounting cylinder. During the sliding process of the movable rod, it will drive the detection end of the displacement sensor to move synchronously. The displacement sensor indirectly calculates the rotation amplitude of the support plate by detecting the displacement of its own detection end. When the calculated rotation amplitude exceeds the preset safety value, the displacement sensor will send an electrical signal to drive the electric push rod to start, realizing the reinforcement action. It can accurately capture the small rotation amplitude of the support plate, providing an accurate basis for the start of the electric push rod, avoiding untimely reinforcement due to detection lag or error, and improving the accuracy of early warning reinforcement. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of the present invention is shown; Figure 2 A schematic diagram of the support mechanism in this invention is shown; Figure 3 A schematic diagram of the cooperation between the electric push rod and the stop rod in this invention is shown; Figure 4 A schematic diagram of the auxiliary component in this invention is shown; Figure 5 A schematic diagram of the engagement between the card block and the card slot in this invention is shown; Figure 6 A schematic diagram of the structure of the prevention component in this invention is shown; Figure 7 A schematic diagram of the detection component in this invention is shown; Figure 8 A schematic diagram of the reinforcement component in this invention is shown.

[0019] Legend: 10. Foundation pit body; 20. Support mechanism; 21. Base plate; 22. Support plate; 23. Mounting platform; 24. Slide groove; 25. Sliding block; 26. Support rod; 27. Support plate; 28. Movable groove; 29. ​​Electric push rod; 210. Adjusting component; 2101. Threaded rod; 2102. Turntable; 30. Detection component; 31. Mounting cylinder; 32. Movable rod; 33. Displacement sensor; 34. First spring; 40. Auxiliary component; 41. Slot; 42. Mounting cavity; 43. Locking block; 44. Spring clip; 50. Prevention component; 51. Arc-shaped support rod; 52. Telescopic component; 53. Limiting hole; 54. Limiting rod; 55. Second spring; 60. Reinforcing component; 61. Reinforcing rod; 62. Mounting cavity; 63. Adjusting disc; 64. Arc-shaped adjusting plate; 65. Insert rod; 66. Connecting rod. Detailed Implementation

[0020] The following will describe, with reference to the accompanying drawings of the embodiments of the present invention, a deep foundation pit slope displacement adaptive early warning and reinforcement system according to the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1-8 As shown, the present invention employs the following technology: an adaptive early warning and reinforcement system for deep foundation pit slope displacement, comprising a foundation pit body 10, and further comprising: A support mechanism 20 is installed at the slope of the foundation pit. The support mechanism 20 includes a base plate 21 at the bottom of the foundation pit. A support plate 22 that abuts against the slope is rotatably installed on the base plate 21. An installation platform 23 is fixedly installed on the base plate 21. A sliding groove 24 is provided on the installation platform 23. A slider 25 driven by an adjusting component 210 is slidably installed in the sliding groove 24. A stop rod 26 driven by an electric push rod 29 is slidably installed in the slider 25. The electric push rod 29 is fixedly installed on the slider 25. A stop plate 27 is rotatably installed on the stop rod 26. A movable groove 28 is provided on the support plate 22. The base plate 21 is slidably connected to the inner wall of the movable groove 28. The detection component 30 is mounted on the mounting platform 23. The detection component 30 is used to detect the rotation range of the support plate 22 caused by the slope and drive the electric push rod 29 to work. When the slope of the deep foundation pit shifts, it exerts lateral pressure on the supporting plate 22, causing the supporting plate 22 to rotate around the rotational connection between the bottom plate 21 and the supporting plate 22. The detection component 30 captures the rotation amplitude signal of the supporting plate 22 in real time. When the rotation amplitude reaches a preset threshold, the detection component 30 triggers a control command to drive the electric push rod 29 to work. After the electric push rod 29 is started, it pushes the abutment rod 26 to slide along the slider 25. The abutment rod 26 drives the abutment plate 27 to move towards the supporting plate 22. It presses tightly against the support plate 22. Through the close fit between the support plate 27 and the support plate 22, it offsets the lateral pressure of the slope on the support plate 22 and prevents the support plate 22 from rotating further, thereby achieving adaptive reinforcement of the slope displacement. At the same time, the slider 25 can be driven by the adjusting component 210 to slide along the slide groove 24 of the mounting platform 23, adjusting the overall position of the slider 25, electric push rod 29 and support rod 26 to adapt to different slope shapes and support requirements, ensuring that the support force is accurately applied to the key stress parts of the support plate 22.

[0022] The closed-loop operation of automatic displacement detection and reinforcement can be completed without human intervention, which can promptly suppress the development of slope displacement and prevent the danger from escalating.

[0023] The adjusting component 210 includes a threaded rod 2101 rotatably mounted on the slider 25, the threaded rod 2101 being threadedly connected to the mounting platform 23, and a turntable 2102 being fixedly mounted on the threaded rod 2101; When it is necessary to adjust the position of the slider 25 in the groove 24 to adapt to different support points or slope changes of the support plate 22, the operator rotates the turntable 2102. The turntable 2102 drives the threaded rod 2101 to rotate synchronously. Since the threaded rod 2101 is threadedly connected to the mounting platform 23, the threaded transmission will convert the rotational motion of the turntable 2102 into the linear sliding motion of the slider 25 along the groove 24, so as to achieve precise adjustment of the position of the slider 25. During the movement of the slider 25, it will drive the electric push rod 29, the abutment rod 26 and the abutment plate 27 installed on it to move synchronously until the abutment plate 27 is adjusted to the optimal support position of the support plate 22. The operation is convenient, no complicated tools are required, and the flexibility of system installation, debugging and subsequent maintenance is improved.

[0024] The detection assembly 30 includes a pair of mounting cylinders 31 fixedly mounted on the mounting platform 23. A displacement sensor 33 is fixedly mounted inside the mounting cylinder 31. A movable rod 32 is slidably mounted inside the mounting cylinder 31. The detection end of the displacement sensor 33 is fixedly connected to the movable rod 32. The end of the movable rod 32 away from the mounting cylinder 31 abuts against the support plate 22. When the support plate 22 is not rotating, the movable rod 32 remains in contact with the support plate 22, and the detection end of the displacement sensor 33 is in the initial detection position. When the slope displacement pushes the support plate 22 to rotate, the support plate 22 will generate a pushing or pulling force on the movable rod 32, causing the movable rod 32 to slide along the inside of the mounting cylinder 31. During the sliding process, the movable rod 32 will drive the detection end of the displacement sensor 33 to move synchronously. The displacement sensor 33 indirectly calculates the rotation amplitude of the support plate 22 by detecting the displacement of its own detection end. When the calculated rotation amplitude exceeds the preset safety value, the displacement sensor 33 will send an electrical signal to drive the electric push rod 29 to start, realizing the reinforcement action. It can accurately capture the small rotation amplitude of the support plate 22, providing an accurate basis for the start of the electric push rod 29, avoiding untimely reinforcement due to detection lag or error, and improving the accuracy of early warning reinforcement.

[0025] A first spring 34 is fixedly installed on the displacement sensor 33, and the other end of the first spring 34 is fixedly connected to the movable rod 32. When the support plate 22 is not rotating, the first spring 34 is in a naturally extended state, applying a continuous elastic force to the movable rod 32 to ensure that the movable rod 32 is always in close contact with the support plate 22. This prevents the displacement signal from being unable to be transmitted in time due to gaps between the movable rod 32 and the support plate 22. When the support plate 22 rotates and pushes the movable rod 32 to slide, the movable rod 32 will compress the first spring 34. The first spring 34 will undergo elastic deformation and generate a reverse elastic restoring force. This restoring force can buffer the sliding speed of the movable rod 32, preventing the movable rod 32 from being violently displaced due to sudden slope displacement. The impact on the displacement sensor 33 protects it from damage. On the other hand, when the slope displacement stabilizes or slightly rebounds, the elastic restoring force of the first spring 34 pushes the movable rod 32 to reset, allowing the detection end of the displacement sensor 33 to return to its initial position. This ensures accurate detection of the rotation signal of the support plate 22 next time, guaranteeing a tight fit between the movable rod 32 and the support plate 22, eliminating detection blind spots, and improving the continuity and accuracy of displacement detection. At the same time, it provides buffer protection for the displacement sensor 33, extending its service life and ensuring the long-term stable operation of the detection component 30.

[0026] An auxiliary component 40 is provided on the support plate 27. The auxiliary component 40 includes an installation cavity 42 opened in the support plate 27. A locking block 43 is slidably installed in the installation cavity 42. A spring piece 44 is fixedly installed on the locking block 43. The other end of the spring piece 44 is fixedly connected to the inner wall of the installation cavity 42. A slot 41 that cooperates with the locking block 43 is opened on the support plate 22. When the locking block 43 moves downward, it abuts against the slot 41, causing the locking block 43 to retract into the installation cavity 42 and squeeze the spring piece 44. When the locking block 43 has an upward tendency, it will be locked by the slot 41 to improve the support force. When the electric push rod 29 pushes the abutment rod 26 to move the abutment plate 27 downward, the locking block 43 on the abutment plate 27 will contact the inner wall of the slot 41 on the support plate 22 and generate pressure. The inclined surface of the slot 41 will apply a lateral force to the locking block 43, forcing the locking block 43 to overcome the elastic force of the spring piece 44 and retract into the mounting cavity 42, ensuring that the abutment plate 27 can move downward smoothly and press against the support plate 22. When the abutment plate 27 moves to the preset support position, the pressure of the slope on the support plate 22 will cause the support plate 22 to tend to move the abutment plate 27 upward. At this time, the locking block 43 will pop out of the mounting cavity 42 under the action of the elastic restoring force of the spring piece 44. The locking surface of the locking block 43 will fit tightly with the locking surface of the slot 41 to form a mechanical locking structure, preventing the abutment plate 27 from moving upward. The mechanical locking mechanism further enhances the support force of the abutment plate 27 on the support plate 22, preventing the abutment plate 27 from rebounding due to excessive slope pressure, and ensuring that the reinforcement effect is stable and reliable.

[0027] The base plate 21 is provided with a plurality of prevention components 50. Each prevention component 50 includes an arc-shaped support rod 51 fixedly installed on the base plate 21. A telescopic member 52, which is limited by a limiting rod 54, is slidably installed inside the arc-shaped support rod 51. During the system installation and commissioning phase, or when no significant slope displacement occurs, the extension length of the expansion joint 52 within the arc-shaped support rod 51 is adjusted according to the initial position of the support plate 22 and the slope stability requirements. After the expansion joint 52 extends to the appropriate length, the limiting rod 54 is inserted into the corresponding limiting hole 53 on the expansion joint 52 to limit and fix the expansion joint 52, so that the end of the expansion joint 52 abuts against the support plate 22, forming initial support. When slope displacement causes the support plate 22 to rotate, the support plate 22 will exert pressure on the expansion joint 52, and the expansion joint 52 resists the pressure through its own rigid support force. The rotation of the guard plate 22, in conjunction with the reinforcing action of the electric push rod 29, jointly shares the slope pressure. If the slope displacement is large, the limiting position of the limiting rod 54 can be adjusted to change the extension length of the telescopic component 52, further enhancing the support force on the guard plate 22. This forms a dual support structure with the electric push rod 29 as the main support and the telescopic component 52 as the auxiliary support, sharing the load of the electric push rod 29 and improving the overall support strength of the system. The adjustable design of the telescopic component 52 allows it to adapt to the support requirements of the guard plate 22 at different rotation angles, enhancing the system's pre-support and emergency support capabilities.

[0028] The limiting rod 54 is slidably installed inside the arc-shaped support rod 51. The telescopic member 52 is provided with a plurality of equidistant limiting holes 53. The limiting holes 53 cooperate with the limiting rod 54. One end of the second spring 55 is fixedly installed on the limiting rod 54. The other end of the second spring 55 is fixedly connected to the arc-shaped support rod 51. When the extension length of the telescopic component 52 needs to be adjusted, the operator pulls the limiting rod 54 outward. The limiting rod 54 overcomes the elastic force of the second spring 55 and disengages from the current limiting hole 53, releasing the limitation on the telescopic component 52. At this time, the telescopic component 52 can be pushed or pulled to slide along the arc-shaped support rod 51. After adjusting to the required length, the limiting rod 54 is released. Under the action of the elastic restoring force, the second spring 55 pushes the limiting rod 54 into the corresponding limiting hole 53 on the telescopic component 52, completing the re-limiting and fixing of the telescopic component 52. During the operation of the system, the second spring 55 always applies an elastic force to the limiting rod 54 in the direction of the telescopic component 52, ensuring that the limiting rod 54 and the limiting hole 53 are tightly fitted, avoiding the limiting rod 54 from falling off due to vibration or external impact, and ensuring the support stability of the telescopic component 52.

[0029] A reinforcement component 60 is provided on the base plate 21. The reinforcement component 60 includes a reinforcement rod 61 that is slidably installed on the base plate 21. One end of the reinforcement rod 61 passes through the base plate 21 and is inserted into the pit. While the electric push rod 29 pushes the abutment plate 27 to press against the support plate 22 for reinforcement, it can also push the reinforcing rod 61 to slide along the bottom plate 21, so that one end of the reinforcing rod 61 passes through the abutment plate 27 and is inserted into the soil or rock mass of the foundation pit slope. After the reinforcing rod 61 is inserted, it works in conjunction with the supporting effect of the abutment plate 27. Through the interlocking action between the reinforcing rod 61 and the soil, part of the slope pressure borne by the support plate 22 is transferred to the deep stable soil mass of the foundation pit, dispersing the local stress on the support plate 22 and further consolidating the slope stability. It is suitable for working conditions where the slope soil is loose or the risk of displacement is high.

[0030] A set of insert rods 65 are slidably installed inside the reinforcing rod 61. An installation cavity 62 is opened inside the reinforcing rod 61. An installation cavity 62 is rotatably installed inside the installation cavity 42. A set of arc-shaped adjustment plates 64 are fixedly installed on the adjustment plate 63. The arc-shaped adjustment plates 64 abut against the insert rods 65. A connecting rod 66 is fixedly installed on the adjustment plate 63. After the reinforcing rod 61 is inserted into the slope of the foundation pit, the operator rotates the connecting rod 66 to drive the adjusting plate 63 to rotate within the installation cavity 62. The adjusting plate 63 drives the arc-shaped adjusting plate 64 on it to rotate synchronously. During the rotation of the arc-shaped adjusting plate 64, its arc-shaped surface will generate a radial thrust on the insertion rod 65, pushing the insertion rod 65 to slide radially along the reinforcing rod 61 and extend out of the reinforcing rod 61, inserting it into the surrounding soil or rock. After the insertion rod 65 extends, it forms an anchoring structure of the main rod and branches with the reinforcing rod 61, which increases the contact area and interlocking force between the reinforcing rod 61 and the soil, significantly improving the anchoring effect of the reinforcing rod 61, preventing the reinforcing rod 61 from slipping or being pulled out under the pressure of the slope, and enhancing the reliability of deep anchoring.

[0031] A photovoltaic energy storage module is installed on the base plate 21 to provide energy for the displacement sensor 33 and the electric push rod 29; The photovoltaic panels in the photovoltaic energy storage module absorb solar energy and convert it into electrical energy. The electrical energy is stored in the energy storage battery through the charge and discharge controller. During system operation, the energy storage battery provides continuous and stable power support to the displacement sensor 33 and the electric push rod 29, ensuring that the displacement sensor 33 can detect the rotation signal of the support plate 22 in real time, and the electric push rod 29 can respond to the drive command in time to perform reinforcement action. When there is insufficient sunlight or at night, the energy storage battery can release the stored electrical energy to ensure uninterrupted operation of the system.

[0032] Working principle: First, the base plate 21 is fixed to the bottom of the pit, so that the support plate 22 fits tightly with the slope. By rotating the turntable 2102 to adjust the threaded rod 2101, the slider 25 is moved along the slide groove 24 of the mounting platform 23, and the abutment plate 27 is adjusted to a suitable support position below the support plate 22. At the same time, the extension length of the telescopic component 52 in the prevention component 50 is adjusted and fixed by the limit rod 54 and the second spring 55, so that the end of the telescopic component 52 presses against the support plate 22 to form initial pre-support. The reinforcing rod 61 is pushed through the abutment plate 27 and inserted into the slope of the pit. The connecting rod 66 is rotated to drive the adjusting plate 63 and the arc-shaped adjusting piece 64, so that the insertion rod 65 extends and is anchored in the soil, completing the deep anchoring. The photovoltaic energy storage module begins to absorb solar energy and store electrical energy to power the displacement sensor 33 and the electric push rod 29.

[0033] When the slope shifts, the slope pressure pushes the support plate 22 to rotate around the base plate 21. During the rotation of the support plate 22, it also generates a thrust on the movable rod 32 in the detection assembly 30. The movable rod 32 slides along the mounting cylinder 31 and drives the detection end of the displacement sensor 33 to move. The first spring 34 buffers the sliding impact of the movable rod 32 and ensures that the two are in close contact. The displacement sensor 33 calculates the rotation amplitude of the support plate 22 by the displacement of the detection end, so as to achieve accurate capture of the displacement signal.

[0034] When the rotation amplitude detected by the displacement sensor 33 exceeds the preset threshold, a signal is immediately sent to drive the electric push rod 29 to work. The electric push rod 29 pushes the abutment rod 26 to move the abutment plate 27 towards the support plate 22. The locking block 43 on the abutment plate 27 retracts when it contacts the locking groove 41 of the support plate 22. After it is in place, it pops out and locks under the action of the spring piece 44 to prevent the abutment plate 27 from rebounding and forming a rigid support. At this time, the telescopic component 52 of the prevention component 50 shares the pressure of the support plate 22 through its own rigidity and limiting structure. The anchoring structure of the reinforcing rod 61 and the insertion rod 65 transmits the pressure to the deep soil. The three work together to form a multi-reinforcement system of surface support, auxiliary support and deep anchoring, which quickly suppresses slope displacement.

[0035] In the reinforced state, all components continue to function. Displacement sensor 33 monitors the status of support plate 22 in real time. If the displacement increases further, electric push rod 29 can continue to push the abutment plate 27 to strengthen the support. Photovoltaic energy storage module continuously supplies power to ensure uninterrupted operation of the system. When the slope is stable, the position of slider 25 can be adjusted by rotating turntable 2102, or the structure such as unlocking block 43 and limit rod 54 can be unlocked to reset all components to their initial state for easy reuse.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the present invention's technology and inventive concept, should be covered within the scope of protection of the present invention.

Claims

1. A deep foundation pit slope displacement adaptive early warning and reinforcement system, comprising a foundation pit body (10), characterized in that, Also includes: A support mechanism (20) is provided at the slope of the foundation pit. The support mechanism (20) includes a base plate (21) at the bottom of the foundation pit. A support plate (22) that abuts against the slope is rotatably installed on the base plate (21). An installation platform (23) is fixedly installed on the base plate (21). A sliding groove (24) is provided on the installation platform (23). A slider (25) driven by an adjusting component (210) is slidably installed in the sliding groove (24). A stop rod (26) driven by an electric push rod (29) is slidably installed in the slider (25). The electric push rod (29) is fixedly installed on the slider (25). A stop plate (27) is rotatably installed on the stop rod (26). A movable groove (28) is provided on the support plate (22). The base plate (21) is slidably connected to the inner wall of the movable groove (28). The detection component (30) is set on the mounting platform (23). The detection component (30) is used to detect the rotation amplitude of the support plate (22) caused by the slope and drive the electric push rod (29) to work.

2. The adaptive early warning and reinforcement system for deep foundation pit slope displacement according to claim 1, characterized in that, The adjusting component (210) includes a threaded rod (2101) rotatably mounted on a slider (25), the threaded rod (2101) being threadedly connected to a mounting platform (23), and a turntable (2102) being fixedly mounted on the threaded rod (2101).

3. The adaptive early warning and reinforcement system for deep foundation pit slope displacement according to claim 2, characterized in that, The detection assembly (30) includes a pair of mounting cylinders (31) fixedly mounted on the mounting platform (23). A displacement sensor (33) is fixedly mounted inside the mounting cylinder (31). A movable rod (32) is slidably mounted inside the mounting cylinder (31). The detection end of the displacement sensor (33) is fixedly connected to the movable rod (32). The end of the movable rod (32) away from the mounting cylinder (31) abuts against the support plate (22).

4. The adaptive early warning and reinforcement system for deep foundation pit slope displacement according to claim 3, characterized in that, A first spring (34) is fixedly installed on the displacement sensor (33), and the other end of the first spring (34) is fixedly connected to the movable rod (32).

5. The deep foundation pit slope displacement adaptive early warning and reinforcement system according to claim 4, characterized in that, An auxiliary component (40) is provided on the support plate (27). The auxiliary component (40) includes an installation cavity (42) opened in the support plate (27). A locking block (43) is slidably installed in the installation cavity (42). A spring piece (44) is fixedly installed on the locking block (43). The other end of the spring piece (44) is fixedly connected to the inner wall of the installation cavity (42). A slot (41) that cooperates with the locking block (43) is opened on the support plate (22). When the locking block (43) moves downward, it abuts against the slot (41) and drives the locking block (43) to retract into the installation cavity (42) to squeeze the spring piece (44). When the locking block (43) has an upward tendency, it will be stuck by the slot (41) to improve the support force.

6. The adaptive early warning and reinforcement system for deep foundation pit slope displacement according to claim 5, characterized in that, The base plate (21) is provided with a number of prevention components (50). The prevention components (50) include an arc-shaped support rod (51) fixedly installed on the base plate (21). A telescopic component (52) that is limited by a limiting rod (54) is slidably installed inside the arc-shaped support rod (51).

7. The adaptive early warning and reinforcement system for deep foundation pit slope displacement according to claim 6, characterized in that, The limiting rod (54) is slidably installed inside the arc-shaped support rod (51). The telescopic member (52) has several equidistant limiting holes (53). The limiting holes (53) cooperate with the limiting rod (54). One end of the second spring (55) is fixedly installed on the limiting rod (54). The other end of the second spring (55) is fixedly connected to the arc-shaped support rod (51).

8. The adaptive early warning and reinforcement system for deep foundation pit slope displacement according to claim 7, characterized in that, A reinforcement component (60) is provided on the base plate (21). The reinforcement component (60) includes a reinforcement rod (61) that is slidably installed on the base plate (21). One end of the reinforcement rod (61) passes through the base plate (21) and is inserted into the pit.

9. The adaptive early warning and reinforcement system for deep foundation pit slope displacement according to claim 8, characterized in that, A set of insert rods (65) is slidably installed inside the reinforcing rod (61). An installation cavity (62) is opened inside the reinforcing rod (61). An installation cavity (62) is rotatably installed inside the installation cavity (42). A set of arc-shaped adjustment plates (64) is fixedly installed on the adjustment plate (63). The arc-shaped adjustment plates (64) abut against the insert rods (65). A connecting rod (66) is fixedly installed on the adjustment plate (63).

10. The adaptive early warning and reinforcement system for deep foundation pit slope displacement according to claim 9, characterized in that, A photovoltaic energy storage module is provided on the base plate (21) to provide energy for the displacement sensor (33) and the electric push rod (29).

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