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Tunnel convergence deformation on-line monitoring system and method

A technology for converging deformation and tunneling, which can be used in measurement devices, earth-moving drilling, mining devices, etc., and can solve the problems of troublesome operation, low cost and low reliability of non-contact method.

Pending Publication Date: 2021-11-05
CHINA COAL TECH ENG GRP CHONGQING RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of the non-contact method is low, but the scanning equipment is greatly affected by the environment (such as water mist), and the reliability is low. If the non-contact method maintains high reliability, it needs to be scanned by the staff before each scan The detection and confirmation of the environment is cumbersome to operate

Method used

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  • Tunnel convergence deformation on-line monitoring system and method
  • Tunnel convergence deformation on-line monitoring system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as figure 1 As shown, a tunnel convergence deformation online monitoring method, including:

[0046] The data collection step includes collecting construction data and geographical data of the tunnel; wherein, the construction data includes the length, curvature and section size of the tunnel; the geographical data includes the position of the tunnel, the position of the mountain, the geographical location and the soil quality. Through these data, the characteristics of the tunnel can be comprehensively analyzed to ensure the comprehensiveness and effectiveness of the subsequent scanning points and special monitoring points.

[0047] In the point analysis step, the scanning point is obtained by analyzing the construction data, and the special monitoring point is obtained by analyzing the construction data and geographic data. There may be one or more scanning points, and the specific number and location need to be determined according to the tunnel construction da...

Embodiment 2

[0059] Different from Embodiment 1, in this embodiment, in the monitoring and installation step of the tunnel convergence deformation online monitoring method, stress and strain sensors, local controllers, emergency spraying devices and camera devices are also installed at special monitoring points. In this embodiment, the camera device is an infrared camera. The emergency spraying device includes a rotating part, a loading cavity and a spraying port, and the loading cavity is loaded with a quick-drying strong viscous material. In this embodiment, the quick-drying strong viscous material is quick-drying super glue. The local controller is electrically connected with the stress and strain sensor, the emergency spraying device and the camera device respectively. An alarm device is installed within the predicted distance before and after the special monitoring point. The alarm device includes a warning light and a loudspeaker. The warning light is evenly arranged along the length...

Embodiment 3

[0073] Different from Embodiment 2, the quick-drying strong viscous material in this embodiment is colored; and there are multiple camera devices, one of which is a collapse path camera device; in the collapse analysis and processing step, the local controller controls the camera device When working and uploading the camera data in real time, control the collapse path camera device to shoot the spraying area.

[0074] The quick-drying strong adhesive material is colored, making it easier for workers to quickly find key stones. The spraying area is photographed by the collapse path camera device, and the specific collapse route of the stone when the collapse occurs can be uploaded in real time, which facilitates the staff to conduct more accurate follow-up accident cause analysis, and provides more valuable reference for risk protection of similar road sections .

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Abstract

The invention belongs to the technical field of tunnel monitoring, and particularly relates to a tunnel convergence deformation on-line monitoring system and method. The method comprises the steps of: a data collection step: collecting construction data and geographic data of a tunnel; a point location analysis step: analyzing the construction data to obtain a scanning point location, and analyzing the construction data and geographic data to obtain a special monitoring point location; a monitoring installation step: installing a scanning device at the scanning point location, and installing a monitoring sensor at the special monitoring point location; a strain analysis step: performing overall convergence analysis according to scanning data of the scanning device, and performing special convergence analysis of the special point location according to feedback data of the monitoring sensor; and extracting a convergence analysis result of the special monitoring point location in the overall convergence analysis, comparing the convergence analysis result with the corresponding special convergence analysis, and if the comparison result exceeds a preset value, sending out an abnormality prompt. The monitoring convenience can be improved on the basis of controlling the cost.

Description

technical field [0001] The invention belongs to the technical field of tunnel monitoring, and in particular relates to an online monitoring system and method for tunnel convergence deformation. Background technique [0002] Tunnel convergence deformation refers to the tunnel deformation caused by the ground, surrounding building load and soil disturbance, tunnel surrounding engineering construction and tunnel engineering structure construction, and train running vibration during the operation of the tunnel. By monitoring tunnel convergence, the safety of tunnel construction and operation can be improved and the occurrence of disasters can be reduced. [0003] At present, the main methods of monitoring tunnel convergence deformation are contact monitoring method and non-contact monitoring method. The contact monitoring method is mainly to arrange the inclination sensors around the tunnel according to a certain arrangement, so as to directly obtain the deformation data of the...

Claims

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Application Information

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IPC IPC(8): E21F17/18E21F11/00G01B21/32B05B12/16B05B12/08B05B12/12
CPCE21F17/18E21F11/00G01B21/32B05B12/16B05B12/085B05B12/12
Inventor 肖勇杨金虎刘跃成张少华雷凯丽赵智辉王圣龙
Owner CHINA COAL TECH ENG GRP CHONGQING RES INST
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