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A mine rock burst strength prediction method and device

A technology of rock burst and prediction method, which is applied in special data processing applications, instruments, electrical digital data processing, etc. Impact of ground pressure

Active Publication Date: 2019-06-21
山西潞安环保能源开发股份有限公司常村煤矿 +1
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AI Technical Summary

Problems solved by technology

So far, the existing technology cannot fully reveal the law and mechanism of rock burst, let alone accurately predict the intensity of rock burst.

Method used

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  • A mine rock burst strength prediction method and device
  • A mine rock burst strength prediction method and device
  • A mine rock burst strength prediction method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0163] 1 Regional structural features and energy field features

[0164] 1.1 Coalfield regional structure and its activity characteristics

[0165] (1) Research on energy source of rock burst and failure energy of coal and rock mass

[0166] Macroscopically analyzed the effect of geological structure, neotectonic movement and modern tectonic stress on the impact of rock burst energy, and evaluated the risk of rock burst by using the geodynamic zoning method; microscopically analyzed the energy transfer and dissipation of coal and rock mass deformation and failure , based on the formation characteristics of rock burst phenomenon, determine the critical energy density of rock burst occurrence.

[0167] (2) Mine field structural movement and original rock energy analysis

[0168] Based on the tectonic stress field, energy field and crustal strain energy characteristics of Jingxi Coalfield, the control effect of structural shape and movement mode on rock burst in Muchengjian coa...

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Abstract

The invention discloses a mine rock burst intensity prediction method and device, and the method comprises the following steps: determining the mining accumulation energy UT-D of a coal body based onthe total energy of mining coal and the damage energy consumption of the coal body under the mining condition; determining critical energy UL of the rock burst based on the coal body damage loss energy and the broken coal body throwing energy; accumulated energy UT-based on mining And D and the critical energy UL, predicting the intensity of the rock burst.

Description

technical field [0001] The present disclosure generally relates to the technical field of geological disaster prevention and control, and in particular to a method and device for predicting mine rockburst strength. Background technique [0002] As the mining depth and mining intensity of coal mines increase, the frequency of mine dynamic disasters also increases. For rock burst mines, rock burst dynamic disasters are the top priority of coal mine safety production. Rockburst is when the energy of coal rock mass reaches or exceeds the critical energy of rock burst, the elastic energy accumulated in coal rock mass is suddenly released, and the coal rock mass is thrown out, accompanied by strong sound, causing damage to underground equipment and underground engineering space , and even cause casualties to underground workers. In addition, the occurrence of rock burst will also affect other mine disasters. Because the occurrence mechanism of rock burst is complex and greatly a...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 郭超芦志刚张立新张大明李刚刘光伟郜富平王振华李洪涛秦勇邢萌邱高伟范宸韩世勇杨超
Owner 山西潞安环保能源开发股份有限公司常村煤矿
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