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Tunnel face deformation alarm method based on mobile three-dimensional laser scanning

A three-dimensional laser, face surface technology, applied in earthwork drilling, using optical devices, measuring devices, etc., can solve problems such as difficult handling, difficult control and monitoring, and huge total station measurement data, and achieve accurate, accurate observation. The effect of ensuring safety and avoiding safety

Inactive Publication Date: 2019-12-06
GUIZHOU UNIV
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Problems solved by technology

In the actual design and construction, most of them are determined according to the experience of engineers, so it is difficult to guarantee the construction safety of the tunnel face
[0005] However, in the complex environment of the tunnel, it will be very difficult to control and monitor the tunnel face with the existing monitoring methods. At the same time, the measurement data of the total station is huge and difficult to handle. Therefore, a new method is urgently needed to monitor the tunnel face in real time. face, so as to avoid rock and soil slipping, resulting in engineering accidents

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Embodiment Construction

[0038] In order to further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention, and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments, for reference Those of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0039] According to an embodiment of the present invention, a tunnel face deformation warning method based on mobile three-dimensional laser scanning is provided.

[0040] Now in conjunction with accompanying drawing and specific embodiment the present invention is further described, as figure 1 As shown, according to the embodiment of...

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Abstract

The invention discloses a tunnel face deformation alarm method based on mobile three-dimensional laser scanning. The method comprises the following steps: selecting a tunnel face to be monitored, andunifying coordinates by using a prism and a total station; mounting a preset mobile track trolley, and fixing a three-dimensional laser scanner on the mobile track trolley; determining a tunnel face monitoring point, and using the three-dimensional laser scanner to obtain point cloud data; processing the obtained point cloud data by using point cloud processing software, and determining a positioncorresponding to the tunnel face monitoring point in the entire point cloud data; obtaining a deformation value of the tunnel face monitoring point according to the point cloud data, and setting an early warning threshold in alarm software; and judging whether to perform automatic alarm according to whether a rock and soil deformation value of the tunnel face exceeds the early warning threshold.The tunnel face deformation alarm method has the beneficial effects of realizing real-time monitoring of the tunnel face and meeting the safety requirements during tunnel face operation.

Description

technical field [0001] The invention relates to the technical field of tunnel face monitoring, in particular to a tunnel face deformation alarm method based on mobile three-dimensional laser scanning. Background technique [0002] In the 21st century, the monitoring methods of tunnels such as subway tunnels, highway tunnels, and high-speed rail tunnels are mainly based on traditional monitoring instruments such as total stations, hydrometers, and convergent instruments. Obtain point coordinates and point change information, obtain tunnel section deformation, convergence deformation horizontal displacement tunnel settlement, face deformation and other information. However, they are all collecting the three-dimensional coordinates of a single control point, which requires massive data collection and takes a lot of time, which leads to a decrease in observation accuracy. At the same time, the traditional monitoring method can only monitor the partial deformation around the mon...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/16E21F17/18
CPCE21F17/18G01B11/16
Inventor 赵瑜滕明阳毕靖王超林全大国李佳申杨进强
Owner GUIZHOU UNIV
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