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Road slope monitoring network system construction method based on finite difference analysis

A monitoring network and finite difference technology, which is applied in the field of foundation soil survey, infrastructure engineering, construction, etc., can solve the problem of not being able to accurately reflect the main deformation of landslides and changes in stress concentration parts, and the layout of monitoring points is not reasonable, etc. problem, to achieve the effect of accurate response

Active Publication Date: 2021-12-03
CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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Problems solved by technology

[0005] Aiming at the deficiencies in the existing technology, the present invention proposes a method for constructing a road slope monitoring network system based on finite difference analysis, so as to solve the problem that the layout of monitoring points for road slopes in the prior art is not reasonable enough and cannot accurately The technical problem of reflecting the main deformation of the landslide and the change of the stress concentration position

Method used

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  • Road slope monitoring network system construction method based on finite difference analysis
  • Road slope monitoring network system construction method based on finite difference analysis
  • Road slope monitoring network system construction method based on finite difference analysis

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Embodiment

[0030] This embodiment provides a method for constructing a road slope monitoring network system based on finite difference analysis, such as figure 1 shown, including the following steps:

[0031] S1. On-the-spot investigation of the road slope

[0032] When conducting on-the-spot surveys on highway slopes, the survey objects include topography, strata, geological structures, and geological phenomena with poor rock and soil properties.

[0033] S2. Select the monitoring section according to the field survey results, and plan the first layout plan of the monitoring points according to the monitoring section;

[0034] In a specific implementation, the monitoring section can be selected in a location with poor geological conditions, large deformation, faults, fissures, dangerous rock mass, etc. that may be potentially damaged, or at a location with high steepness and poor stability. After selecting the monitoring section, first plan the first layout plan of monitoring points o...

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Abstract

The invention provides a road slope monitoring network system construction method based on finite difference analysis. The method comprises the following steps: selecting a monitoring section according to an on-site investigation result of a road slope to obtain a first layout scheme of monitoring points; performing image acquisition on the road slope through oblique photography of the unmanned aerial vehicle, and establishing a road slope geologic model; extracting three-dimensional point cloud data of the road slope geologic model, and performing grid refinement to obtain a grid file; performing numerical simulation by using an intensity reduction method to obtain a slope safety coefficient, a deformation displacement cloud picture, a displacement contour map and a shear strain increment cloud picture; finding out the position where the slope is unstable, and obtaining a second layout scheme of the monitoring points according to the position where the slope is unstable; and obtaining a road slope monitoring network according to the first monitoring point layout scheme and the second monitoring point layout scheme. According to the invention, the technical problems that the monitoring point positions of the road slope are not reasonably arranged and the main deformation of the landslide and the change condition of the stress concentration part cannot be accurately reflected can be solved.

Description

technical field [0001] The invention relates to the technical field of road slope monitoring, in particular to a method for constructing a road slope monitoring network system based on finite difference analysis. Background technique [0002] More sufficient geological data and real-time slope dynamics can be obtained through highway slope monitoring, so as to judge the unstable area of ​​the suspicious slope, determine the sliding mode, direction and speed of the unstable slope, and grasp the development and change law of the slope. Provide an important basis for taking necessary protective measures. [0003] For highway slope monitoring, it is necessary to fully consider the geological conditions of the slope and the potential failure mode of the slope, focusing on construction safety monitoring and long-term monitoring, taking into account the overall situation, and highlighting the key points. In the prior art, for the monitoring points of the highway slope monitoring, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F30/23E02D1/00G06F111/10
CPCG06F30/13G06F30/23E02D1/00G06F2111/10
Inventor 徐峰潘煜唐胜传谭玲黄河杨光清温辉波刘中帅
Owner CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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