A foundation pit rapid support system with alarm function

Abstract

The present invention relates to a foundation pit rapid support system with an alarm function, comprising a cross bracing steel pipe, a hydraulic expansion and contraction device, a pressure sensor, a data acquisition terminal, a computer and an alarm device, wherein the two ends of the cross bracing steel pipe are respectively connected with the hydraulic expansion and contraction devices, the hydraulic expansion and contraction devices are respectively connected with the steel sheet piles on the two inner sides of the foundation pit to support the steel sheet piles, and the pressure sensors are respectively installed on each hydraulic expansion and contraction device to collect the force data on the two inner sides of the foundation pit, the pressure sensor is electrically connected with the data acquisition terminal, the data acquisition terminal performs data communication with the computer via a communication network to upload the force data of the foundation pit to the computer, the computer is connected to the alarm device for communication, and the computer analyzes the deformation of the foundation pit, and when it exceeds the warning threshold, the alarm device is used to alarm. The system is conducive to rapid support of the foundation pit, monitoring the deformation of the foundation pit, and performing safety alarms in danger.

Description

Technical Field

[0001] The invention relates to the technical field of foundation pit engineering, and in particular to a foundation pit rapid support system with an alarm function. Background Art

[0002] As the excavation depth of foundation pit construction becomes deeper and deeper, monitoring the stress conditions of the foundation pit during the construction process has become an indispensable and important part of engineering construction. Through the various test components pre-buried in the support structure and foundation, dynamic monitoring of the foundation pit excavation and underground construction process has become an important means to achieve safe construction and information-based construction. However, the existing manual observation methods or automatic monitoring devices are not accurate enough, and cannot timely and effectively send out dangerous information through the alarm device, which has limited improvement on the safe construction of the foundation pit. Summary of the invention

[0003] The purpose of the present invention is to provide a foundation pit rapid support system with an alarm function, which is conducive to rapid support of the foundation pit, monitoring of foundation pit deformation, and safety alarm in case of danger.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a rapid support system for a foundation pit with an alarm function, comprising a cross-bracing steel pipe, a hydraulic expansion and contraction device, a pressure sensor, a data acquisition terminal, a computer and an alarm device, wherein the hydraulic expansion and contraction devices are respectively connected to both ends of the cross-bracing steel pipe, and the hydraulic expansion and contraction devices are respectively connected to the steel sheet piles on the inner sides of the foundation pit to support the steel sheet piles, and the pressure sensors are respectively installed on each hydraulic expansion and contraction device to collect the force data on the inner sides of the foundation pit, the pressure sensor is electrically connected to the data acquisition terminal, and the data acquisition terminal communicates data with the computer via a communication network to upload the foundation pit force data to the computer, and the computer is communicatively connected to the alarm device, and the computer analyzes the deformation of the foundation pit, and when it exceeds the warning threshold, the alarm is sounded through the alarm device.

[0005] Furthermore, the pressure sensor is connected between the cross-bracing steel pipe and the hydraulic telescopic device through a flange structure, and the hydraulic telescopic device is also connected to the steel sheet piles on the foundation pit through a flange.

[0006] Furthermore, the data acquisition terminal performs data communication with the computer via a wireless communication network.

[0007] Furthermore, the computer is arranged in the project command center, the alarm device comprises an alarm arranged on the safety helmet worn by the construction personnel and a warning light connected to the computer, and the computer is connected to the alarm through a wireless communication network.

[0008] Furthermore, the rapid foundation pit support system includes a plurality of cross-bracing steel pipes and corresponding hydraulic expansion devices spaced apart along the length direction of the foundation pit, each hydraulic expansion device is respectively equipped with a pressure sensor, each pressure sensor is respectively electrically connected to a data acquisition terminal, and each data acquisition terminal communicates data with a computer via a wireless communication network.

[0009] Furthermore, the computer is provided with a number of warning thresholds. The computer calculates support deformation and foundation pit displacement according to the foundation pit stress data uploaded by the data acquisition terminals of each area of ​​the foundation pit, analyzes the change of the foundation pit displacement relative to the foundation pit depth, and judges the danger level of each area of ​​the foundation pit according to the situation that it exceeds different warning thresholds. The computer sends the danger level of each area of ​​the foundation pit to the alarm on the safety helmet in the corresponding area, and each alarm alarms the corresponding danger level through sound and light changes.

[0010] Compared with the prior art, the present invention has the following beneficial effects: it provides a foundation pit rapid support system with an alarm function, which can monitor the force of the foundation pit while rapidly supporting the foundation pit, and then monitor and analyze the deformation of the foundation pit through the foundation pit force data, and issue a safety alarm when the deformation exceeds the limit. At the same time, the present invention sets an alarm on each construction worker to notify each construction worker in real time, which greatly improves the safety of foundation pit construction, and has strong practicality and broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the installation state of an embodiment of the present invention in a foundation pit.

[0012] Figure 2 It is a schematic diagram of the overall architecture of an embodiment of the present invention. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] The present invention provides a foundation pit rapid support system with an alarm function, such as Figure 1 , 2As shown, it includes a cross-bracing steel pipe 1, a hydraulic expansion and contraction device 2, a pressure sensor 3, a data acquisition terminal 4, a computer 5 and an alarm device. The two ends of the cross-bracing steel pipe 1 are respectively connected to the hydraulic expansion and contraction devices 2, and the hydraulic expansion and contraction devices 2 are respectively connected to the steel sheet piles on the two inner sides of the foundation pit to support the steel sheet piles. The pressure sensor 3 is respectively installed on each hydraulic expansion and contraction device 2 to collect the force data on the two inner sides of the foundation pit. The pressure sensor 3 is electrically connected to the data acquisition terminal 4. The data acquisition terminal 4 communicates with the computer 5 via a communication network to upload the foundation pit force data to the computer. The computer 5 is communicatively connected to the alarm device. The computer 5 analyzes the deformation of the foundation pit. When it exceeds the warning threshold, the alarm is sounded through the alarm device.

[0015] In this embodiment, the pressure sensor 3 is connected between the cross bracing steel pipe 1 and the hydraulic expansion device 2 through a flange structure, and the pressure sensor 3 is made of high-strength low-alloy structural steel. The hydraulic expansion device 2 is also connected to the steel sheet piles on the foundation pit through a flange. The data acquisition terminal 4 communicates data with the computer 5 through a wireless communication network. The computer 5 is located in the project command center, and the alarm device includes an alarm 6 on the safety helmet worn by the construction personnel and a warning light 7 connected to the computer. The computer 5 is connected to the alarm 6 through a wireless communication network.

[0016] In order to monitor the safety of the entire foundation pit, the foundation pit rapid support system of the present invention includes a plurality of cross-bracing steel pipes 1 and corresponding hydraulic telescopic devices 2 arranged at intervals along the length direction of the foundation pit, and each hydraulic telescopic device 2 is respectively installed with a pressure sensor 3, and each pressure sensor 3 is respectively electrically connected to a data acquisition terminal 4, and each data acquisition terminal 4 communicates data with a computer 5 via a wireless communication network.

[0017] In order to ensure the safety of construction workers in the foundation pit, the computer 5 is provided with several warning thresholds. The computer 5 calculates the support deformation and the foundation pit displacement according to the foundation pit stress data uploaded by the data acquisition terminal 4 of each area of ​​the foundation pit, analyzes the change of the foundation pit displacement relative to the foundation pit depth, and judges the danger level of each area of ​​the foundation pit according to the situation that it exceeds different warning thresholds. The computer 5 sends the danger level of each area of ​​the foundation pit to the alarm 6 on the safety helmet in the corresponding area. Each alarm 6 alarms the corresponding danger level through sound and light changes, thereby displaying the danger area and danger level to the construction workers, facilitating the evacuation of the construction workers.

[0018] In this embodiment, three warning thresholds are provided on the computer 5. When the first-level warning threshold is not exceeded, the alarm 6 on the safety helmet worn by the construction personnel and the warning light 7 of the project command center are displayed in green; when the first-level warning threshold is exceeded, the alarm 6 on the safety helmet worn by the construction personnel and the warning light 7 of the project command center are displayed in yellow, so as to warn the project management personnel to immediately organize personnel to find out the cracks and their changes around the foundation pit; when the second-level warning threshold is exceeded, the alarm 6 on the safety helmet worn by the construction personnel and the warning light 7 of the project command center are displayed in red, so as to warn the project management personnel to immediately organize personnel to clean up the piles within 8 meters of the top of the foundation pit; when the third-level warning threshold is exceeded, the alarm 6 on the safety helmet worn by the construction personnel is displayed in orange and emits a rapid buzzing sound, so as to warn the construction personnel to quickly evacuate the site through the safety passage, and at the same time, the warning light 7 of the project command center is displayed in orange and emits a rapid buzzing sound, so as to warn the project management personnel to immediately activate the emergency plan.

[0019] The above are preferred embodiments of the present invention. Any changes made according to the technical solution of the present invention, as long as the resulting functions do not exceed the scope of the technical solution of the present invention, belong to the protection scope of the present invention.

Claims

1. A foundation pit rapid support system with an alarm function, characterized in that: It includes a cross bracing steel pipe, a hydraulic expansion and contraction device, a pressure sensor, a data acquisition terminal, a computer and an alarm device. The two ends of the cross bracing steel pipe are respectively connected with the hydraulic expansion and contraction devices. The hydraulic expansion and contraction devices are respectively connected with the steel sheet piles on the two inner sides of the foundation pit to support the steel sheet piles. The pressure sensors are respectively installed on each hydraulic expansion and contraction device to collect the force data on the two inner sides of the foundation pit. The pressure sensor is electrically connected with the data acquisition terminal. The data acquisition terminal communicates with the computer via a communication network to upload the force data of the foundation pit to the computer. The computer is connected with the alarm device for communication. The computer analyzes the deformation of the foundation pit. When it exceeds the warning threshold, the alarm device sounds an alarm. The pressure sensor is connected between the cross bracing steel pipe and the hydraulic expansion and contraction device through a flange structure, and the hydraulic expansion and contraction device is also connected to the steel sheet piles on the foundation pit through a flange structure; The computer is located in the project command center, the alarm device includes an alarm device located on a safety helmet worn by a construction worker and a warning light connected to the computer, and the computer is connected to the alarm device through a wireless communication network; The foundation pit rapid support system comprises a plurality of cross bracing steel pipes and corresponding hydraulic expansion and contraction devices arranged at intervals along the length direction of the foundation pit, each hydraulic expansion and contraction device is respectively equipped with a pressure sensor, each pressure sensor is respectively electrically connected to a data acquisition terminal, and each data acquisition terminal performs data communication with a computer via a wireless communication network; The computer is provided with several warning thresholds. The computer calculates support deformation and foundation pit displacement according to the foundation pit stress data uploaded by the data acquisition terminal of each area of ​​the foundation pit, analyzes the change of the foundation pit displacement relative to the foundation pit depth, and judges the danger level of each area of ​​the foundation pit according to the situation that it exceeds different warning thresholds. The computer sends the danger level of each area of ​​the foundation pit to the alarm on the safety helmet in the corresponding area, and each alarm warns the corresponding danger level through sound and light changes.

2. A foundation pit rapid support system with an alarm function according to claim 1, characterized in that: The data acquisition terminal performs data communication with the computer via a wireless communication network.

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