Distribution pattern of front abutment pressure of fully-mechanized working face of soft coal isolated island

Xu Wenquan; Wang Enyuan; Shen Rongxi; Song Dazhao; Zhang Jingmin

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Distribution pattern of front abutment pressure of fully-mechanized working face of soft coal isolated island

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摘要

The front abutment pressure of a fully-mechanized workface of 11061 soft coal isolated island of Liangbei Coal Mine was measured and studied using a self-developed mining-induced stress monitoring system associated with electromagnetic radiation technology,and the effects of abutment pressure distribution on strata behavior we discussed.The results indicate that the mining-induced influencing distance advanced at the fully-mechanized working face of soft coal isolated island is larger than that at the general working face at the isolated island,besides the fracture zone in front of working face was widened to some extent,and the influencing range caused by relaxations on both roadways became bigger with the advancing working face.Moreover,it can be indicated that mining has significant effect on strata behavior of fully-mechanized working face of soft coal isolated island,which is mostly distributed in the area of stress concentration.The research results have an important reference value for revealing the distribution pattern of the front abutment pressure of a fully-mechanized working face of soft coal isolated island,and controlling the coal-rock dynamic disaster occurrence under similar mining conditions.

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《矿业科学技术（英文版）》 |2012年第2期|279-284|共6页
作者
Xu Wenquan; Wang Enyuan; Shen Rongxi; Song Dazhao; Zhang Jingmin;
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作者单位

School of Safery Engineering,China University of Mining Technology,Xuzhou 221116,China State Key Laboratory of Coal Resources and Mine Safety,Xuzhou 221008,China;

School of Safery Engineering,China University of Mining Technology,Xuzhou 221116,China State Key Laboratory of Coal Resources and Mine Safety,Xuzhou 221008,China;

School of Safery Engineering,China University of Mining Technology,Xuzhou 221116,China State Key Laboratory of Coal Resources and Mine Safety,Xuzhou 221008,China;

School of Safery Engineering,China University of Mining Technology,Xuzhou 221116,China State Key Laboratory of Coal Resources and Mine Safety,Xuzhou 221008,China;

School of Safery Engineering,China University of Mining Technology,Xuzhou 221116,China State Key Laboratory of Coal Resources and Mine Safety,Xuzhou 221008,China;

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Distribution pattern of front abutment pressure of fully-mechanized working face of soft coal isolated island

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