千秋煤矿煤的单轴抗压强度与冲击能量指数关系 .pdfVIP

学兔兔 煤 炭 工 程 201 1年第12期 千秋煤矿煤的单轴抗压强度与 冲击能量指数关系 李宝富，齐利伟，任永康，常 垒 (河南理工大学能源科学与工程学院，河南焦作 454000) 摘 要：为了搞清煤体强度对冲击地压防治的影响，通过试验研究了千秋煤矿二号煤层试样 单轴抗压强度与冲击能量指数之间的关系。结果表明煤样的冲击能量指数与单轴抗压强度呈较显 著的线性关系。煤样的浸水软化试验证明煤的冲击能量指数随单轴抗压强度降低而减小。降低煤 层的煤体强度可以消减煤的冲击倾向性，是防治冲击地压发生内因的有效措施。 关键词：单轴抗压强度；冲击能量指数；冲击地压；浸水软化试验 中图分类号：TD324 文献标识码：A 文章编号：1671—0959(2011)12-0068-03 Relationship Between Uniaxial Compressive Strength and Impact Energy Index of Coal in Qianqiu Mine LI Bao—fu，QI Li—wei，REN Yong—kang，CHANG Lei (School of Energy Science and Engineering，Henan Polytechnic University，Jiaozuo 454000，China) Abstract：In order to understand the coal strength affected to the mine pressure pumping prevention and control，the experiment study was applied to the relationship between the uniaxial compressive strength of the sample from No．2 seam and the bumping energy index in Qianqiu Mine．The results showed that the bumping energy index and uniaxial compressive strength of the coal sample have a obvious liner relationship．The water immersion softening test of the coal sample showed that the bumping energy index would be reduced with the uniaxial compressive strength reduced．To reduce the coal strength of the seam could reduce the bumping tendency of coal and could be the effective measures to prevent and control the mine pressure bumping occurred． Keywords：uniaxial compressive strength；bumping energy index；mine pressure bumping；water immersion softening test 近年来我国煤炭产量和消费量不断增加，2009年我国 向性之间的关联性。 原煤产量突破3O亿t，年产量位居世界首位，已