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Mixed moment tensor inversion calculation method and system for rock acoustic emission, and storage medium

A calculation method and moment tensor technology, applied in the computer field, can solve problems such as P-wave propagation and dispersion

Inactive Publication Date: 2020-03-24
SHENHUA ZHUNGER ENERGY
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Problems solved by technology

[0004] Based on the above problems, the present invention proposes a mixing moment tensor inversion calculation method, storage medium and system of rock acoustic emission, which solves the technical problem of P wave propagation dispersion caused by the heterogeneity of rock, and provides A Better Calculation Method for the Focal Mechanism Solution of Microfractures

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  • Mixed moment tensor inversion calculation method and system for rock acoustic emission, and storage medium
  • Mixed moment tensor inversion calculation method and system for rock acoustic emission, and storage medium
  • Mixed moment tensor inversion calculation method and system for rock acoustic emission, and storage medium

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[0039] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings. It is only intended to describe the specific implementation of the present invention in detail, and does not impose any limitation on the present invention, and the scope of protection of the present invention shall be determined by the claims.

[0040] refer to figure 1 , the present invention proposes a mixing moment tensor inversion calculation method of rock acoustic emission, including:

[0041] Step S001, using the least squares method to perform absolute moment tensor inversion calculation to obtain the focal mechanism solution before correction;

[0042] Step S002, introducing an iteration parameter, and calculating a weight correction value according to the iteration parameter;

[0043] Step S003 , correcting the pre-correction focal mechanism solution by using the weight correction value to obtain the corrected seismic focal mec...

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Abstract

The invention provides a mixed moment tensor inversion calculation method and system for rock acoustic emission, and a storage medium . The method comprises the steps: carrying out absolute moment tensor inversion calculation through employing a least square method, and obtaining a seismic source mechanism solution before correction; introducing iteration parameters, and calculating a weight correction value according to the iteration parameters; and correcting the seismic source mechanism solution before correction through the weight correction value to obtain a corrected seismic source mechanism solution. The technical problem of P-wave propagation dispersion caused by heterogeneity of the rock is solved, and a good calculation method is provided for a seismic source mechanism solution of internal micro-fracture of the rock.

Description

technical field [0001] The invention relates to the field of computers, in particular to a calculation method, storage medium and system for rock acoustic emission mixing moment tensor inversion. Background technique [0002] Rock material is an anisotropic brittle material. Generally, under the action of external load, brittle failure will occur inside the rock, resulting in microcracks. As the load changes, the internal micro-cracks gradually initiate and expand until they are completely penetrated. Therefore, it is of great significance to monitor the acoustic emission signal generated during the rock loading process through the acoustic emission experiment to analyze the failure state of the rock. [0003] Generally speaking, the acoustic emission information caused by rock microfractures can be used to analyze the nature (acoustic emission focal mechanism solution), quantity (acoustic emission impact number), and spatial location (acoustic emission signal location) of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/14G01N3/06G06F17/15
CPCG01N29/14G01N3/06G06F17/15G01N2291/0289G01N2203/0658G01N2203/0062
Inventor 周永利武国平胡存虎王建明
Owner SHENHUA ZHUNGER ENERGY
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