Fabricated foundation pit slope supporting system and equipment and construction method thereof

Abstract

The invention discloses an intelligent assembly type foundation pit slope supporting system and equipment based on edge computing and a construction method thereof.The intelligent assembly type foundation pit slope supporting system comprises a green assembly type supporting structure used for covering and supporting a building foundation pit slope, and a prefabricated module of the green assembly type supporting structure is integrated with an intelligent positioning chip and a signal relay module; the informatization anchor rod support monitoring system is rigidly connected with the green assembly type support structure through a standardized quick connector, has anchoring fixing and support state monitoring functions, and carries an edge calculation unit; the edge-cloud collaborative data transmission processing system is in communication connection with the informatization anchor rod support monitoring system and is used for realizing edge preprocessing, cloud deep analysis and visual early warning of monitoring data; the device is used in a soft soil foundation building foundation pit, flowing deformation and displacement of soft soil can be effectively restrained, traditional passive retaining is converted into active control, and the safety of a soft soil building foundation pit slope is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of border support, and particularly relates to an assembled foundation pit slope support system based on the Internet of Things and a construction method thereof. BACKGROUND

[0002] With the rapid development of economic society and the continuous advancement of urbanization process, the number and scale of building foundation pit projects continue to grow, and the slope stability and construction safety have become a key link in engineering construction. The slope protection and monitoring technology is directly related to engineering safety, surrounding environment protection and construction efficiency, and is a technical direction focused on in the current construction engineering field.

[0003] At present, anchor spray support, soil nailing wall, SMW method pile and underground continuous wall are widely used in foundation pit slope support. Among them, anchor spray support is particularly common in engineering application due to its good adhesion, high strength and economy. However, this kind of traditional support process usually relies on a large number of on-site operations, has a long construction period, produces significant noise and dust pollution in the process, and has large material loss, which is contrary to the concept of green construction. In addition, most support structures are designed for one-time use and are abandoned underground after the completion of the foundation pit project, causing serious waste of resources and environmental burden.

[0004] In terms of slope deformation monitoring, current practice mainly relies on manual patrol and intermittent measurement of traditional instruments such as total station and inclinometer. These methods not only have high labor cost and low efficiency, but also are significantly affected by human factors, making it difficult to achieve continuous and real-time data collection. The monitoring results often lag behind, and cannot dynamically and timely reflect the stress and deformation state of the support structure, thereby restricting the early warning and active control ability of construction risks.

[0005] In summary, the current building foundation pit slope support and monitoring field mainly has the following outstanding problems: first, the traditional support method has large resource consumption, high carbon emission, serious pollution, and the structure is not recyclable, and has poor sustainability; second, the existing monitoring means has low automation and informatization level, relies on manual work, resulting in discontinuous data and delayed feedback, and insufficient early warning ability; third, there is a lack of intelligent linkage between support construction and deformation monitoring, and a closed-loop management of perception, analysis and control cannot be formed; fourth, the professional ability of the existing technical system and part of the practitioners has been difficult to meet the urgent needs of the industry towards green, intelligent and efficient development. Therefore, exploring a new support system based on the Internet of Things, assembly type and recyclable concept and its intelligent construction and monitoring method, realizing green low-carbon, safe controllable slope protection and efficient real-time, intelligent early warning of deformation monitoring, has become a key path to solve existing problems and promote the progress of the industry. SUMMARY

[0006] This application provides a prefabricated foundation pit slope protection system, equipment, and construction method, characterized by including: Green prefabricated support structure (2) is used to cover and support the slope of the building foundation pit (1), and its prefabricated module integrates intelligent positioning chip and signal relay module; The information-based anchor support monitoring system (3) is rigidly connected to the green prefabricated support structure (2) through a standardized quick-connect interface. It has both anchoring and multi-dimensional support status monitoring functions, and is equipped with an edge computing unit. The edge-cloud collaborative data transmission and processing system (4) is connected to the information-based anchor support monitoring system (3) via a mesh network to realize edge preprocessing, cloud-based in-depth analysis and visualization early warning of monitoring data; Among them, the green prefabricated support structure (2) is assembled from multiple standardized prefabricated modules through anchor fasteners, the edge computing unit of the information-based anchor support monitoring system (3) can output intelligent installation / disassembly instructions based on real-time monitoring data, and the edge-cloud collaborative data transmission processing system (4) can realize remote transmission of monitoring data, multi-node data fusion, remote instruction issuance and dynamic evaluation and visual early warning of support status.

[0007] Preferably, the prefabricated module of the green prefabricated support structure (2) includes a waterproof layer panel (21), a grid-reinforced signal transmission and positioning composite panel (22), and a dense mesh protective layer panel (23) arranged sequentially from the inside to the outside.

[0008] Preferably, the waterproof layer panel (21) is made of single-sided fiber composite thermoplastic polyolefin material, the grid-reinforced-signal transmission and positioning composite panel (22) is made of PET plastic steel strip geogrid material, and the dense mesh protective layer panel (23) is a mesh structure made of high-density polyethylene monofilament warp knitting, and the positioning QR code is printed with wear-resistant ink.

[0009] Preferably, the anchor is a square four-corner anchor (5), including the anchor body, elastic locking structure (51) and pressure sensor (52); the elastic locking structure (51) can be unlocked with a special tool to realize the quick disassembly and assembly of the prefabricated module; the pressure sensor (52) is integrated in the middle of the anchor and is used to collect the fastening pressure data of the anchor. It is connected to the information-based anchor support monitoring system (3) through the signal transmission line of the prefabricated module to provide real-time feedback on the installation quality. It is used to fix adjacent prefabricated modules at their corners and anchor them to the slope of the building foundation pit (1).

[0010] Preferably, the information-based anchor support monitoring system (3) includes the anchor main reinforcement (33), the sensor group integration chamber (34) set on the anchor main reinforcement (33), and the anchor cable force gauge (31).

[0011] Preferably, the sensor group integrated into the cabin (34) is at least integrated with a humidity / osmotic pressure sensor (341), a stress / strain sensor (342), and an inclination / displacement sensor (343), and carries a micro edge computing unit (344).

[0012] Preferably, the edge-cloud collaborative data transmission processing system (4) comprises: a wireless transmission device (41) for collecting and sending the monitoring data of the informationized anchor support monitoring system (3); a cloud data processing system (42) for receiving, storing and processing the monitoring data; a visualization client system (43) for remotely displaying monitoring data and issuing warning information and issuing intelligent installation / dismantling control instructions.

[0013] The application also provides a device of the fabricated foundation pit slope support system, comprising the following modules: The processing module transmits data to the cloud data processing system (42) through the communication module, and receives instructions from the cloud data processing system (42) and the visualization client system (43).

[0014] The communication module is connected with the processing module and is used for data communication with the cloud data processing system (42) and the visualization client system (43). The sensor interface is used for detachably connecting the sensors in the informationized anchor support monitoring system (3). The power supply module supplies power to the processing module, the communication module and the connected sensors.

[0015] The application also provides a construction method of the fabricated foundation pit slope support system, comprising the following steps: S1: prefabricating the modular panels of the green fabricated support structure (2) according to claim 2 or 3 and the informationized anchor support monitoring system (3) according to claim 5; S2: assembling the green fabricated support structure (2) on the building foundation pit slope (1) and fixing it by using anchor members; S3: installing the informationized anchor support monitoring system (3) and deploying and debugging the edge-cloud collaborative data transmission processing system (4) connected therewith; S4: monitoring and safety evaluating the support system in real time through the edge-cloud collaborative data transmission processing system (4); S5: after the main structure of the project is completed, disassembling and recycling the informationized anchor support monitoring system (3) and the green fabricated support structure (2).

[0016] The one or more technical solutions provided in the embodiments of the application have at least the following technical effects or advantages: 1. To solve the problems of insufficient safety of soft soil foundation pit, passive traditional support and local instability, the application adopts a stable overall structure combined with surface-line-point, i.e., a green assembled support structure combined with an informationized anchor monitoring system, to realize the conversion of traditional passive support into active control, effectively inhibit the rheology and displacement of soft soil, and solve the problems of insufficient overall rigidity and stability of soft soil building foundation pit slope and local instability.

[0017] 2. To solve the environmental problems of traditional support, such as large pollution, high consumption of materials and non-recyclable, the application adopts a prefabricated assembled structure produced in a factory and a recyclable informationized anchor assembly, including an anchor main reinforcement, a sensor group integrated cabin and an anchor cable dynamometer, to realize the reduction of on-site construction waste, noise and dust pollution, greatly reduce the consumption of steel and concrete and carbon emissions, and solve the problem that traditional anchor shotcrete support and other methods do not meet the requirements of green and sustainable development goals.

[0018] 3. To solve the problems of traditional support, such as slow construction, high cost and poor economic benefits in the whole life cycle, the application adopts an assembled recyclable green support structure and a rapid assembly construction method, to realize the significant reduction of on-site wet work and maintenance time, saving of materials and space, and reduction of the whole life cycle cost through reusability, and solve the problems of low construction efficiency and poor economic benefits of traditional soil nailing wall, SMW method pile and underground continuous wall support.

[0019] 4. To solve the problems of poor durability and easy corrosion and aging of support structure, the application adopts a multi-layer standardized prefabricated module surface structure composed of a waterproof layer panel, a grid reinforced layer panel and a protective layer panel, to realize the excellent durability characteristics of high toughness, corrosion resistance, high strength, flame resistance and chemical corrosion resistance of the whole support, and solve the problems of insufficient durability and safety of traditional support structure in complex environment.

[0020] 5. To solve the problems of delayed safety monitoring of foundation pit, dependence on manual work and inability to actively warn, the application adopts an informationized anchor support monitoring system integrated with multi-parameter sensors, uses data integration and data processing methods of multi-node monitoring systems such as mesh network, multi-level structure and multi-sensor structure, and an edge-cloud collaborative data transmission and processing system based on 5G communication and cloud processing, to realize real-time monitoring, remote viewing, intelligent warning, predictive maintenance and intelligent demolition and installation of underground water, support stress and deformation and other states, and solve the engineering safety management problems of passive safety monitoring, untimely warning and other problems in the whole life cycle of building foundation pit slope support. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is an integrated schematic diagram of a prefabricated recyclable green foundation pit slope support system based on the Internet of Things; Figure 2 It is an integrated schematic diagram of a green prefabricated support structure in a prefabricated recyclable green foundation pit slope support system based on the Internet of Things; Figure 3 It is an integrated schematic diagram of an informationized anchor support monitoring system in a prefabricated recyclable green foundation pit slope support system based on the Internet of Things; Figure 4 It is an integrated schematic diagram of a sensor group integrated cabin in a prefabricated recyclable green foundation pit slope support system based on the Internet of Things; Figure 5 It is an integrated schematic diagram of an edge-cloud collaborative data transmission processing system in a prefabricated recyclable green foundation pit slope support system based on the Internet of Things; Figure 6 It is an integrated schematic diagram of a green prefabricated support structure and a four-corner anchor nail in a prefabricated recyclable green foundation pit slope support system based on the Internet of Things; Figure 7 It is a structural schematic diagram of an anchoring element in a prefabricated recyclable green foundation pit slope support system based on the Internet of Things; Figure 8 It is a schematic diagram of the construction method steps of a prefabricated recyclable green foundation pit slope support system based on the Internet of Things; In the figure: 1, building foundation pit slope; 2, green prefabricated support structure; 3, informationized anchor support monitoring system; 4, edge-cloud collaborative data transmission processing system; 5, four-corner anchor nail; 21, waterproof layer panel; 22, grating reinforced-signal conduction and positioning composite panel; 23, fine mesh protection layer panel; 31, anchor cable dynamometer; 32, anchoring gasket; 33, anchor bar main reinforcement; 34, sensor group integrated cabin; 35, anchoring section; 341, humidity / osmotic pressure sensor; 342, stress / strain sensor; 343, inclination / displacement sensor; micro edge computing unit 344; 41, wireless transmission device; 42, cloud data processing system; 43, visual client system.

[0022] 51, elastic lock structure; 52, pressure sensor. DETAILED DESCRIPTION

[0023] The embodiment of the present application provides a prefabricated foundation pit slope support system based on the Internet of Things and a construction method thereof, which solves the problems of poor environmental protection, passive safety, large material consumption and insufficient sustainability in traditional foundation pit support engineering.

[0024] The technical solution in the embodiments of the present application is to solve the problem of crosstalk, and the general idea is as follows: The supporting structure is designed as an assembled surface layer composed of waterproof, reinforced, protective and other multi-layer standardized prefabricated modules, realizing rapid assembly, uniform stress and detachable recycling. The anchor rod system is upgraded to an informationized monitoring unit integrating multiple sensors, which can collect key data such as seepage pressure, stress and displacement in real time. Through wireless transmission and cloud processing system, the data is analyzed, evaluated and warned in real time. After the project is completed, the main components and monitoring equipment are disassembled and recycled, and can be reused in subsequent projects after maintenance.

[0025] The above scheme provides active and continuous stable support through the assembled surface layer, and realizes accurate and real-time state perception and control through the informationized anchor rod. The two work together to form a reinforced whole in the form of surface-line-point. The supporting mode is changed from passive support to active control, which significantly improves the safety and reliability of the project, realizes the efficiency and modularity of the construction process, greatly reduces resource consumption and environmental impact, and achieves the comprehensive goal of green, economic and intelligent.

[0026] In order to better understand the above technical solution, the above technical solution will be described in detail in combination with the drawings of the specification and specific embodiments.

[0027] Embodiment one As Figure 1 , the embodiment proposes an assembled foundation pit slope supporting system based on Internet of Things, which includes a building foundation pit slope 1, a green assembled supporting structure 2, an informationized anchor rod supporting and monitoring system 3, and an edge-cloud collaborative data transmission and processing system 4.

[0028] The building foundation pit slope is a soft soil foundation building foundation pit slope; As Figure 6 shown, the green assembled supporting structure 2 is composed of a plurality of standardized prefabricated modules that can be assembled and recycled, and is fixed and assembled on the building foundation pit slope by square four-corner anchor nails 5. As Figure 2 shown, the prefabricated module includes a waterproof layer panel 21, a grid reinforced-signal conducting and positioning composite panel 22, and a dense mesh protective layer panel 23. The waterproof layer panel 21 is a single-sided fiber composite thermoplastic polyolefin (TPO) material located closest to the innermost side of the building foundation pit slope; the grid reinforced layer panel 22 is a PET plastic steel belt geogrid material located in the middle; and the dense mesh protective layer panel 23 is a net-like structure made of high-density polyethylene monofilament warp knitting.

[0029] As Figure 7As shown, the anchor is a quick-release square four-corner anchor 5, including an anchor body, an elastic lock structure 51 and a pressure sensor 52.

[0030] The assembly method of the green assembly support structure 2 is: first, the waterproof layer panel 21, the grid reinforced-signal conducting and positioning composite panel 22 and the protective layer panel 23 of the protective layer panel 23 are respectively produced into standardized modules, then according to the shape and size of the building foundation pit slope, the on-site assembly is carried out, when assembling, the square four-corner anchor is used to fix and connect the corners, so that the whole continuous structure is formed between the prefabricated modules. The square four-corner anchor is fixed and connected by high-strength bolts or riveting, which ensures the firmness and stability of the connection.

[0031] As shown in Figure 3 The information-based anchor rod support monitoring system 3 includes a recyclable multipurpose anchor cable dynamometer 31, an anchor lining 32, an anchor rod main reinforcement 33, a sensor group integrated cabin 34 and an anchor segment 35. As shown in Figure 4 The sensor group integrated cabin 34 is provided with a humidity / osmotic pressure sensor 341, a stress / strain sensor 342 and an inclination / displacement sensor 343, at least three kinds of intelligent monitoring equipment are prefabricated, and a micro edge computing unit 344 is carried. The humidity / osmotic pressure sensor 341 is used to monitor the groundwater and seepage; the stress / strain sensor 342 is used to monitor the stress state of the support module; the inclination / displacement sensor 343 is used to monitor the displacement and deformation of the support module; the micro edge computing unit 344 is used to receive sensor group data, complete multi-source data standardization integration and preprocessing.

[0032] As shown in Figure 5 The data transmission processing system 4 includes a wireless transmission device 41, a cloud data processing system 42 and a visual client system 43. The wireless transmission device 41 adopts 5G communication technology to ensure real-time data transmission; the cloud data processing system 42 adopts a distributed storage architecture and has 24-hour uninterrupted operation capability; the visual client system 43 realizes remote monitoring, intelligent early warning and issues intelligent installation / disassembly control instructions through a computer, is equipped with a display screen and is convenient for intuitive presentation of monitoring data.

[0033] During construction, first, the building foundation pit is excavated and the bottom of the foundation pit is cleaned, then the recyclable anchor rod is driven into the foundation pit slope soil according to the designed position, the perpendicularity and stability of the anchor rod main reinforcement are ensured. Then the anchor lining is placed on the anchor rod, then the sensor group integrated cabin and the anchor cable dynamometer are inserted into the anchor rod through the support structure, and finally the wireless transmission device and the power supply line are arranged. After construction is completed, equipment debugging is carried out to ensure that each sensor works normally and a data acquisition system is established.

[0034] In use, various parameters are monitored in real time through the visualization client system, and when an anomaly occurs, a warning prompt is issued in a timely manner. The support structure is regularly manually inspected, the stability and sealing of the support structure are evaluated in combination with the intelligent monitoring data, and maintenance or replacement is performed according to the evaluation results. After the main structure construction is completed, the support system is disassembled and recycled in reverse order, and is stored in the warehouse for standby use after passing the detection.

[0035] Embodiment two The embodiment provides a prefabricated foundation pit slope support device based on Internet of Things, which comprises the following modules: The processing module transmits data to the cloud data processing system 42 through the communication module, and receives instructions from the cloud data processing system 42 and the visualization client system 43.

[0036] The communication module is connected with the processing module, and is used for data communication with the cloud data processing system 42 and the visualization client system 43. One or more sensor interfaces are used to detachably connect sensors in the informationized anchor rod support monitoring system 3. The power supply module supplies power to the processing module, the communication module and the connected sensors.

[0037] Embodiment three As shown in Figure 7 The embodiment provides a construction method of a prefabricated foundation pit slope support system based on Internet of Things, which comprises the following steps: S1: Before the building foundation pit is excavated, prefabricated green assembly support structures and informationized anchor rod monitoring systems are prepared; S2: After the building foundation pit is excavated and sloped, the prefabricated green assembly support structures are assembled, and square four-corner anchor nails are used to fixedly connect the corners; S3: The informationized anchor rod monitoring system is inserted, and the deployment and debugging of the information sensing unit and the data transmission unit are simultaneously completed; S4: The intelligent monitoring and early warning platform receives data in real time, performs dynamic monitoring and safety evaluation, and realizes real-time monitoring of the building foundation pit slope in the whole life cycle; S5: After the main structure of the building foundation pit project is constructed, the informationized anchor rod monitoring system and the green assembly support structure are disassembled and recycled; S6: The disassembled support modules and components are detected, maintained, and stored in the warehouse for standby use.

[0038] It is worth noting that the green assembled recyclable foundation pit slope support system based on the Internet of Things and the construction method thereof provided in the embodiment of the present application are particularly suitable for use in a soft soil foundation building pit, can effectively inhibit the rheology and displacement of soft soil, change the traditional passive support into active control, and greatly improve the safety of the soft soil building pit slope. The green assembled support structure designed in the present application not only can effectively prevent rainwater from infiltrating into the soil body, protect the basic physical and mechanical properties of the soil body, but also can form continuous support, uniformly distribute soil pressure, and prevent local instability; the informationized anchor rod monitoring system not only can densify the surrounding soft soil, improve the local soil cohesion and internal friction angle, but also can transmit stress to the deep stable soil layer. The combination of the two forms a "surface-line-point" stable whole, and the overall stiffness and stability are much better than that of a single support.

[0039] Compared with the traditional anchor shotcrete support, the green assembled recyclable foundation pit slope support system provided in the embodiment of the present application is more green, environmentally friendly and sustainable, and the factory production of prefabrication reduces on-site construction waste, noise and dust pollution; the anchor rod main reinforcement, sensor group integrated cabin and multipurpose anchor cable dynamometer in the green assembled support structure and informationized anchor rod monitoring system provided in the embodiment of the present application are all recyclable and reusable equipment, which greatly reduces the generation of construction waste and the consumption of steel and concrete, and reduces carbon emissions.

[0040] Compared with the traditional soil nailing wall, SMW method pile and underground continuous wall and other building foundation pit support structures, the green assembled support structure provided in the embodiment of the present application has a faster construction speed, greatly reduces the on-site wet work and maintenance time, saves materials and space, is reusable, and has a low whole life cycle cost.

[0041] The green assembled support structure provided in the embodiment of the present application is composed of at least three standardized prefabricated module surface layers, i.e. waterproof layer panel, grid reinforced layer panel and dense mesh protection layer panel, and has the characteristics of high toughness, good durability and corrosion resistance. The waterproof layer panel is a single-sided fiber composite thermoplastic polyolefin (TPO) material, has the characteristics of good durability, corrosion resistance and high strength; the grid reinforced layer panel is a PET plastic steel belt geogrid material, has the characteristics of high strength, high toughness and high safety; and the dense mesh protection layer panel is a net-like structure formed by high-density polyethylene monofilament warp knitting, has excellent properties such as high strength, flame retardance, wear resistance and chemical corrosion resistance.

[0042] The informatization anchor rod support monitoring system provided in the specific embodiment of the present application uses a data integration and data processing method of a multi-node monitoring system such as a mesh network, a multi-level structure, and a multi-sensor structure, and an edge-cloud collaborative data transmission and processing system based on 5G communication and cloud processing, so that the underground water and seepage conditions, the stress state and displacement deformation of the slope support module, and the like can be monitored in real time; the data transmission and processing system provided can be viewed synchronously and in real time online, and the combination of the two realizes real-time monitoring, intelligent early warning, predictive maintenance, and intelligent installation / removal of the building foundation pit slope support structure in the whole life cycle, changes passive safety to active safety, and greatly improves the engineering safety.

[0043] The assembly type recyclable green foundation pit slope support system based on the Internet of Things and the construction method thereof provided by the present application can realize real-time monitoring, intelligent early warning, predictive maintenance, and intelligent installation / removal of the building foundation pit slope support structure in the whole life cycle, and has advantages such as green environmental protection, high efficiency and economy, modularity, standardization, and intelligence.

[0044] The embodiments of the specific embodiment are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application. Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application. Obviously, those skilled in the art can make various modifications and changes to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and changes of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and changes.

Claims

1. A prefabricated foundation pit slope protection system, characterized in that, include: Green prefabricated support structure (2) is used to cover and support the slope of the building foundation pit (1). Its prefabricated module integrates intelligent positioning chip and signal relay module. The information-based anchor bolt support monitoring system (3) is rigidly connected to the green prefabricated support structure (2) through a standardized quick-connect interface. It has both anchoring and support status monitoring functions and is equipped with an edge computing unit. The edge-cloud collaborative data transmission and processing system (4) is connected to the information-based anchor bolt support monitoring system (3) to realize edge preprocessing, cloud-based in-depth analysis and visualization early warning of monitoring data; Among them, the green prefabricated support structure (2) is assembled from multiple standardized prefabricated modules through anchor fasteners, the edge computing unit of the information-based anchor support monitoring system (3) can output intelligent installation / disassembly instructions based on real-time monitoring data, and the edge-cloud collaborative data transmission processing system (4) can realize remote transmission of monitoring data, multi-node data fusion, remote instruction issuance and dynamic evaluation and visual early warning of support status.

2. The prefabricated foundation pit slope protection system as described in claim 1, characterized in that, The prefabricated module of the green prefabricated support system (2) is a three-layer composite structure, which is set from the inside to the outside as a waterproof layer panel (21), a grid-reinforced-signal transmission and positioning composite panel (22), and a dense mesh protective layer panel (23).

3. The prefabricated foundation pit slope protection system as described in claim 2, characterized in that, The waterproof layer panel (21) is made of single-sided fiber composite thermoplastic polyolefin material, which has both waterproof and signal penetration properties; the grid-reinforced signal transmission and positioning composite panel (22) is made of PET plastic steel strip geogrid material, with embedded signal transmission and positioning devices; the dense mesh protective layer panel (23) is a mesh structure made of high-density polyethylene monofilament warp knitting, and the positioning QR code is printed with wear-resistant ink.

4. The prefabricated foundation pit slope protection system as described in any one of claims 1 to 3, characterized in that, The anchor is a quick-release square four-corner anchor (5), including the anchor body, the elastic locking structure (51) and the pressure sensor (52); the anchor body is used to fix adjacent prefabricated modules at their corners and anchor them to the slope of the building foundation pit (1); the elastic locking structure (51) can be unlocked with a special tool to realize the quick disassembly and assembly of the prefabricated modules; the pressure sensor (52) is integrated in the middle of the anchor and is used to collect the fastening pressure data of the anchor and connect to the information-based anchor support monitoring system (3) through the signal transmission line of the prefabricated module to provide real-time feedback on the installation quality.

5. The prefabricated foundation pit slope protection system as described in claim 1, characterized in that, The information-based anchor support monitoring system (3) includes the anchor main reinforcement (33), the sensor group integration chamber (34) set on the anchor main reinforcement (33), and the anchor cable force gauge (31).

6. The prefabricated foundation pit slope protection system as described in claim 5, characterized in that, The sensor group integration compartment (34) integrates at least three types of sensors: humidity / pressure sensor (341), stress / strain sensor (342), and tilt / displacement sensor (343), and is equipped with a micro edge computing unit (344).

7. The prefabricated foundation pit slope protection system as described in claim 1, characterized in that, The data transmission processing system (4) includes: a wireless transmission device (41) for collecting and sending monitoring data from the information-based anchor support monitoring system (3); a cloud data processing system (42) for receiving, storing and processing the monitoring data; and a visualization client system (43) for remotely displaying monitoring data, issuing early warning information and sending intelligent installation / removal control commands.

8. A device for implementing the prefabricated foundation pit slope protection system as described in any one of claims 1-7, characterized in that, Includes the following modules: The processing module transmits data to the cloud data processing system (42) via the communication module, and receives instructions from the cloud data processing system (42) and the visualization client system (43). A communication module, connected to the processing module, is used to communicate with the cloud data processing system (42) and the visualization client system (43) for data communication; Sensor interface for detachable connection of sensors in information-based anchor bolt support monitoring system (3); The power supply module provides power to the processing module, the communication module, and the connected sensors.

9. A construction method for implementing the prefabricated foundation pit slope protection system as described in any one of claims 1-7, characterized in that, Includes the following steps: S1: Modular panels of prefabricated green prefabricated support structure (2) and information-based anchor support monitoring system (3); S2: Assemble the green prefabricated support structure (2) on the slope (1) of the building foundation pit and fix it with anchors; S3: Install the information-based anchor support monitoring system (3), and deploy and debug the edge-cloud collaborative data transmission and processing system (4) connected to it. S4: The support system is monitored in real time, safety assessed, and intelligently installed / disassembled through the edge-cloud collaborative data transmission processing system (4); S5: After the main structure of the project is completed, the information-based anchor support monitoring system (3) and the green prefabricated support structure (2) will be dismantled and recycled. S6: Inspect and maintain the disassembled support modules and components, and store them in the warehouse for future use.

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