Multi-index extensible evaluation method for dangerous rock falling risks in tunnel and underground engineering

A technology for rockfall of dangerous rocks and underground engineering. It is applied in the directions of instrumentation, design optimization/simulation, and calculation. It can solve the problems of ignoring the complexity and uncertainty of the geological conditions of underground engineering, and unable to give the probability of occurrence of disaster grades. The result has a greater impact

Inactive Publication Date: 2017-09-22
SHANDONG UNIV
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Problems solved by technology

[0003] However, the current research work of domestic scholars on risk analysis and assessment is basically in the stage of exploration and development. In the process of risk assessment, the complexity and uncertainty of underg

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  • Multi-index extensible evaluation method for dangerous rock falling risks in tunnel and underground engineering
  • Multi-index extensible evaluation method for dangerous rock falling risks in tunnel and underground engineering
  • Multi-index extensible evaluation method for dangerous rock falling risks in tunnel and underground engineering

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[0053] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0054] It should be noted that the terminology used here is only used to describe specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0055] The present invention will be further described below in conjunction with accompanying drawings and exa...

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Abstract

The invention discloses a multi-index extensible evaluation method for dangerous rock falling ricks in tunnel and underground engineering. The method comprises the following steps of: 1, establishing a dangerous rock falling risk evaluation index system according to main factors inducing side slope dangerous rock mass collapse; 2, establishing a grading standard for dangerous rock falling risk evaluation and determining a dangerous rock falling risk evaluation grade; 3, quantifying or correcting an evaluation index parameter, namely, normalizing and scalarizing a qualitative index, and describing the qualitative index to a certain extent by using a numerical value form; 4, establishing a classical domain, a joint domain, a to-be-evaluated matter element and an extensible model of a to-be-evaluated dangerous rock matter element; 5, collecting to-be-evaluated dangerous rock data, determining a weight of each risk evaluation index by adoption of a single correlation function method, and calculating a correlation function value of the to-be-evaluated dangerous rock matter element; and 6, evaluating the dangerous rock falling risk, and calculating a grade variable feature value of the to-be-evaluated matter element so as to obtain a collapse rock falling risk grade of a to-be-evaluated dangerous rock at a portal section of a tunnel.

Description

technical field [0001] The invention relates to a multi-index extension evaluation method for dangerous rockfall risk in tunnels and underground engineering. Background technique [0002] With the national "Twelfth Five-Year Plan" and other strategic technological development plans, tunnels and underground engineering involving traffic engineering (railways, highway tunnels), water conservancy and hydropower engineering (water transmission tunnels, underground powerhouses) and a series of important engineering fields have become national major projects. It is an important part of infrastructure engineering construction, and the center of gravity of major engineering construction is gradually shifting to the western mountainous area with extremely complex topography and geology. The collapse of dangerous rock mass on the slope is a major geological disaster in tunnel construction. The sides and upside slopes of many tunnel entrances and exits in the western mountainous area a...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 李术才王欣桐薛翊国李志强陶宇帆周炳桦张开张学亮
Owner SHANDONG UNIV
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