Foundation pit side wall deformation detection device

Abstract

The utility model relates to a foundation pit side wall deformation detection device which comprises a fixing rod, a detection box arranged on the fixing rod, a laser signal transmitter and a laser signal receiver, the laser signal transmitter and the laser signal receiver are arranged on the detection faces of the detection box, the detection box is provided with a plurality of detection faces, and the detection box is used for forming a matrix. The laser signal transmitters face the laser signal receivers on the other adjacent detection boxes, and one laser signal transmitter and one laser signal receiver are arranged on one detection surface of each detection box. According to the foundation pit side wall deformation detection device, the deformation quantity of the foundation pit side wall is detected in a multi-point synchronous detection mode, and the detection coverage can be effectively improved in the mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection, in particular to a foundation pit side wall deformation detection device. BACKGROUND

[0002] The foundation pit refers to the earthwork space excavated for the construction of underground structures (such as basements, foundations, etc.) in building construction. It is the initial step of construction, ensuring that the building has a solid foundation. The main features include temporary: the foundation pit is only used during construction and will be backfilled or followed by subsequent construction after completion; diversity: shapes and sizes vary depending on project needs, with common shapes such as rectangles, circles, etc.; varying depths: depths vary from a few meters to tens of meters, depending on the needs of underground structures.

[0003] When the depth of the foundation pit is deep and the surrounding geological environment is complex, appropriate reinforcement measures need to be taken to reinforce and detect the foundation pit side wall. The current detection methods include image method, fixed position distance detection method, and local displacement detection method, etc. However, the deformation position of the foundation pit side wall is uncertain, and the above methods have certain defects in detection coverage. SUMMARY

[0004] The present application provides a foundation pit side wall deformation detection device, which detects the deformation of the foundation pit side wall by a multi-point synchronous detection method. This method can effectively improve the detection coverage.

[0005] The above-mentioned object of the present application is achieved by the following technical solution:

[0006] The present application provides a foundation pit side wall deformation detection device, comprising:

[0007] A fixed rod;

[0008] A detection box is provided on the fixed rod, and the detection box has multiple detection surfaces;

[0009] A laser signal transmitter and a laser signal receiver are provided on the detection surface of the detection box;

[0010] The detection box is used to form a matrix, and the laser signal transmitter is directed towards the laser signal receiver on the adjacent other detection box;

[0011] There is one laser signal transmitter and one laser signal receiver on one detection surface of the detection box.

[0012] In one possible implementation of the present application, the laser signal transmitter comprises:

[0013] A spherical groove base is fixed on the detection surface of the detection box;

[0014] A signal transmitter is connected to the spherical groove base, and the signal transmitter has a swing range.

[0015] In a possible implementation manner of the present application, the shape of the laser signal receiver is annular.

[0016] In a possible implementation manner of the present application, the laser signal transmitter is located in the area surrounded by the inner side of the laser signal receiver.

[0017] In a possible implementation manner of the present application, a communication device electrically connected to the laser signal receiver is further included, and the communication device is configured to send the result data generated by the laser signal receiver to a host computer.

[0018] In a possible implementation manner of the present application, an indicator lamp electrically connected to the laser signal receiver is further included, and the indicator lamp is configured to display normal results and abnormal results.

[0019] In a possible implementation manner of the present application, the indicator lamp includes a non-flashing indicator lamp configured to display normal results and a flashing indicator lamp configured to display abnormal results. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of a foundation pit side wall deformation detection device provided by the present application.

[0021] Figure 2 is a deployment schematic diagram of a foundation pit side wall deformation detection device provided by the present application.

[0022] Figure 3 is a structural schematic diagram of a laser signal transmitter provided by the present application.

[0023] Figure 4 is an external shape schematic diagram of a tool for adjusting the orientation of the signal transmitter.

[0024] Figure 5 is a connectivity schematic diagram of a laser signal receiver and a communication device provided by the present application.

[0025] In the figure, 1 is a fixed rod, 2 is a detection box, 3 is a laser signal transmitter, 4 is a laser signal receiver, 5 is a communication device, 6 is an indicator lamp, 31 is a spherical groove base, and 32 is a signal transmitter. DETAILED DESCRIPTION

[0026] The technical solutions in the present application will be further described in detail below with reference to the accompanying drawings.

[0027] The present application discloses a foundation pit side wall deformation detection device, please refer to Figure 1In some examples, the foundation pit side wall deformation detection device disclosed by the application comprises a fixed rod 1, a detection box 2, a laser signal transmitter 3 and a laser signal receiver 4. The fixed rod 1 can be a short rod made of metal, which is directly hammered into the foundation pit side wall during use. The detection box 2 is connected to the fixed rod 1 in a threaded manner, and the detection box 2 is installed on the fixed rod 1 after the installation of the fixed rod 1 is completed. The detection box 2 has multiple detection surfaces, each of which is provided with a laser signal transmitter 3 and a laser signal receiver 4.

[0028] In actual use, multiple detection boxes 2 are arranged on the upper part of a foundation pit side wall, and the detection boxes 2 form a matrix, as shown in Figure 2 , to detect the deformation of the foundation pit side wall where they are located. The specific requirement is that the laser signal transmitter 3 faces the laser signal receiver 4 on the adjacent other detection box 2, so that each detection box 2 is both a signal transmitter and a signal receiver.

[0029] Please refer to Figure 3 , the laser signal transmitter 3 comprises a spherical groove base 31 and a signal transmitter 32. The spherical groove base 31 is fixed on the detection surface of the detection box 2, and the signal transmitter 32 is connected to the spherical groove base 31. This structure can make the signal transmitter 32 have a spherical swing range.

[0030] The adjustment of the signal transmitter 32 uses a tool as shown in Figure 4 , and is adjusted to the point where the adjacent laser signal receiver 4 can receive the signal.

[0031] The laser signal receiver 4 is ring-shaped, and the laser signal transmitter 3 is required to be located inside the area surrounded by the inner side of the laser signal receiver 4. This can not only reduce the space occupation of the laser signal transmitter 3 and the laser signal receiver 4, but also increase the receiving area of the laser signal receiver 4, so as to provide a larger receiving range for the adjustment of the laser signal transmitter 3.

[0032] Further, please refer to Figure 5 , a communicator 5 electrically connected to the laser signal receiver 4 is added, which is used to send the result data generated by the laser signal receiver 4 to the upper computer.

[0033] The detection result of the laser signal receiver 4 is displayed by an indicator light 6 (as shown in Figure 1 ) electrically connected to the laser signal receiver 4. The result has two types of normal result and abnormal result. The indicator light 6 comprises a non-flashing indicator light and a flashing indicator light. The non-flashing indicator light is used to display the normal result, and the flashing indicator light is used to display the abnormal result.

[0034] The laser signal transmitter 3 uses a power-on start mode, and the laser signal receiver 4 and the communicator 5 also use a power-on start mode if a controller is integrated, or the laser signal receiver 4 and the communicator 5 are directly integrated together, otherwise a microcontroller (86C51, STM32) needs to be used for control.

[0035] The microcontroller is placed inside the detection box 2, and the power supply is also placed inside the detection box 2. The indicator light 6 can also be controlled using the microcontroller.

[0036] The embodiments of the specific embodiments are the preferred embodiments of the present application, and are not limited to 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 within the protection scope of the present application.

Claims

1. A device for detecting deformation of the sidewall of a foundation pit, characterized in that, include: Fixed rod (1); The detection box (2) is mounted on the fixed rod (1) and has multiple detection surfaces; A laser signal transmitter (3) and a laser signal receiver (4) are mounted on the detection surface of the detection box (2); Among them, the detection box (2) is used to form a matrix, and the laser signal transmitter (3) faces the laser signal receiver (4) on the adjacent other detection boxes (2). A laser signal transmitter (3) and a laser signal receiver (4) are located on one detection surface of the detection box (2).

2. The excavation pit sidewall deformation detection device according to claim 1, characterized in that, The laser signal transmitter (3) includes: The spherical groove base (31) is fixed on the detection surface of the detection box (2); The signal transmitter (32) is connected to the spherical groove base (31) and has a swing range.

3. The excavation pit sidewall deformation detection device according to claim 1, characterized in that, The laser signal receiver (4) is ring-shaped.

4. The excavation pit sidewall deformation detection device according to claim 3, characterized in that, The laser signal transmitter (3) is located within the area enclosed by the inner side of the laser signal receiver (4).

5. The excavation pit sidewall deformation detection device according to claim 1, characterized in that, It also includes a communicator (5) electrically connected to the laser signal receiver (4), which is used to send the result data generated by the laser signal receiver (4) to the host computer.

6. The excavation pit sidewall deformation detection device according to claim 1 or 5, characterized in that... It also includes an indicator light (6) electrically connected to the laser signal receiver (4), which is used to display normal and abnormal results.

7. The excavation pit sidewall deformation detection device according to claim 6, characterized in that, The indicator light (6) includes a non-flickering indicator light and a flashing indicator light. The non-flickering indicator light is used to display normal results, and the flashing indicator light is used to display abnormal results.

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