A numerical simulation method and system for normal fault induced rock burst

A numerical simulation and rock burst technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of high model accuracy and lack of accurate numerical model support for rock burst, and achieve model accuracy. high effect

Inactive Publication Date: 2019-01-08
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a numerical simulation method and system for the induction of rock burst by normal faults, aiming to solve the problem of lack o...

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  • A numerical simulation method and system for normal fault induced rock burst
  • A numerical simulation method and system for normal fault induced rock burst
  • A numerical simulation method and system for normal fault induced rock burst

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[0037] In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily lim...

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Abstract

The invention provides a numerical simulation method and system for normal fault induced rock burst, which comprises the following steps: setting stratum parameters of a working face; determining thephysical and mechanical parameters of rock strata according to the geological report of working face and the rock mechanics test report of drill hole; setting boundary conditions; calculating compensation load and lateral pressure coefficients; carrying out numerical simulation of rock mass, faults and goaf caving zone. The invention solves the problem that the research on the influence rule of rock burst in the prior art is lack of accurate numerical model support, the numerical model of normal fault is established, modeling si performed according to the established mechanical parameters of rock strata, the model has high accuracy, and a scientific basis is provided for the prediction and prevention of rock burst in the area affected by normal fault in front of similar conditions.

Description

technical field [0001] The invention relates to the field of numerical simulation of rock burst, in particular to a numerical simulation method and system for induction of rock burst by normal faults. Background technique [0002] The occurrence of faults breaks the continuity of the floor, reduces the mechanical properties of the rock mass near the fault, and causes stress variation near the fault. Practice has proved that the analysis of the movement law and stress state of the overlying rock near the fault is the basis for the study of rock burst, which can predict the degree of rock burst danger and its dangerous area, so as to effectively prevent rock burst. [0003] In recent years, numerical simulation has been used as a commonly used and effective analysis method to solve many complex mechanical problems in coal mines. At present, the commonly used numerical simulation software at home and abroad includes FLAC, UDEC, PFC, RFPA, ANSYS, etc., and the methods used are ...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 郑朋强王普王辉张臣贾江锋赵阳
Owner SHANDONG UNIV OF SCI & TECH
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