Stress-strain digital data processing method for reinforcing tunnel face of broken and weak surrounding rock

A stress-strain and weak surrounding rock technology, applied in the direction of electrical digital data processing, special data processing applications, character and pattern recognition, etc., can solve problems affecting the stability of the face, reducing the reinforcement effect, time-consuming and labor-intensive problems, etc.

Active Publication Date: 2021-05-14
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI +2
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Problems solved by technology

[0003] However, the reinforcement effect of the face of the surrounding rock requires data support. At present, the analysis of the stress-strain data of the face of the surrounding rock is often done manually and judged, which is time-consuming and laborious, a

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  • Stress-strain digital data processing method for reinforcing tunnel face of broken and weak surrounding rock
  • Stress-strain digital data processing method for reinforcing tunnel face of broken and weak surrounding rock
  • Stress-strain digital data processing method for reinforcing tunnel face of broken and weak surrounding rock

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Embodiment Construction

[0050] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0051] Such as figure 1 As shown, the embodiment of the present invention provides a method for digital data processing of stress and strain for strengthening the face of broken and weak surrounding rock, including the following steps:

[0052] S100 establishes a three-dimensional model of the tunnel face of the broken and weak surrounding rock according to the project design, performs virtual finite element segmentation, and forms a three-dimensional finite element model of the tunnel face;

[0053] S200 detects and saves the basic data of the surrounding rock face during section excavation;

[0054] S300 combines basic data and 3D finite element model to analyze ...

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Abstract

The invention provides a stress-strain digital data processing method for a reinforcing tunnel face of a broken and weak surrounding rock, which comprises the following steps: S100, establishing a three-dimensional model of a broken weak surrounding rock tunnel face according to project design, and carrying out virtual finite element segmentation to form a three-dimensional finite element model of the tunnel face; S200, in the section excavation process, detecting and storing basic data of the surrounding rock tunnel face; S300, performing stress-strain analysis on the tunnel face in combination with the basic data and the three-dimensional finite element model, and predicting the bonding repair demand strength of the surrounding rock tunnel face by adopting a preset algorithm; and S400, selecting a surrounding rock tunnel face reinforcement measure according to the bonding and repairing demand strength, and introducing the reinforcement measure into the three-dimensional finite element model for effectiveness analysis. The method can improve the analysis efficiency and effectiveness of the broken weak surrounding rock tunnel face reinforcement stress-strain data, improves the analysis precision, is used for guiding surrounding rock reinforcement, can guarantee the reinforcement effect, avoids the reinforcement failure, and controls the surrounding rock reinforcement cost.

Description

technical field [0001] The invention relates to the technical field of surrounding rock reinforcement stress data processing, in particular to a digital data processing method for stress and strain reinforcement of broken and weak surrounding rock faces. Background technique [0002] In the tunnel construction under the geological condition of broken and weak surrounding rock, one of the most prominent problems in the construction process of the tunnel with weak surrounding rock is the stability of the tunnel face. In order to maintain the stability of the tunnel face, it is often necessary to strengthen the tunnel face. However, if the reinforcement measures are not in place, it will not only endanger the construction safety, but even affect the operation safety. The reinforcement method can adopt advanced pre-reinforcement technology, use pipe shed and / or anchor rods, improve the strength of broken and weak strata and the stability of surrounding rock, and ensure safety. ...

Claims

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Application Information

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IPC IPC(8): G06F30/13G06F30/23G06F30/27G06K9/00G06K9/40G06F119/14
CPCG06F30/13G06F30/23G06F30/27G06F2119/14G06V20/10G06V10/30
Inventor 高军汤宇刘德安林晓孟国基王圣罗红明王峰彭学军杨文国翁小川谢晓波李一萍杨立云贾超高宇馨王伟杨文龙游国平张晓晓李行利黄正凯张旭东
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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