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《Metal Mine》 2004-12
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Application of Microseismic Monitoring Method in Disaster Prevention of Underground Mine

Pang Huandong Jiang Fuxing Zhang Xingmin(Shandong University of Science & Technology)  
The geological disasters in coal mines such as rockburst, coal and gas outburst and water inrush have inevitable relationship with the microseismic (MS) events in rockmass. The paper presents the micro mechanism of acoustic emission (AE), analyzes the location of MS events and some parameters such as AE frequency, AE energy and fractal number and describes their role in disaster forcasting. The observation results show that decreased frequecy, large energy events occurence and reduced fractal number all betoken a coming geological disaster. The mechanism of microseismic envents due to mining- induced rock fracture is summarised and classified into four types of shearing, namely high vertical stress, low side pressure, high side pressure and low vertical stress. The Sino-Australian (CSIRO) joint research on microseism in Xinglongzhuang Coal Mine is presented. It is pointed out that forcasting the geological disasters and their prevention and reduction by MS has a broad prospect.
【Fund】: 国家自然科学基金重大国际合作项目 ( 5 0 3 10 0 0 1);; 面上基金项目( 5 0 0 740 2 1)
【CateGory Index】: TD76
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