摘要
针对某矿综采工作面发生的一起冲击地压事故,主要从地质因素和开采工艺分析了诱发冲击地压事故的原因。分析结果表明,煤层自身具有的强冲击倾向性是冲击地压发生的内因,坚硬厚层顶板形成了冲击地压的力源,采煤机进刀后支架支护不及时导致顶板压力转移到工作面煤壁,工作面支架选型不合理使工作面留底煤形成了能量释放出口,工作面夹矸造成工作面局部煤体应力集中,加剧了冲击地压危险。
According to one rock burst accident happened in a fully-mechanized coalface of some mine,this paper analyzed its reasons from aspects of geological factors and mining technology. The results showed that strong rock burst liability of coal mass itself was the intrinsic factor of the rock burst, and hard and thick roof was the force source of the rock burst. The delayed supporting after coal cutting resulted in the transfer of roof pressure to coal wall of coalface. Unreasonable selection of support types leaded to retaining ground coal in coalface, which became the exit of energy release. The rock parting of the eoalfaee resulted in stress concentration at local place,which made the rock burst more dangerous.
出处
《山东科技大学学报（自然科学版）》
CAS
2011年第5期12-15,共4页
Journal of Shandong University of Science and Technology(Natural Science)
基金
国家重点基础研究发展计划("973"计划)项目(2010CB226806)
关键词
工作面冲击地压
诱发因素
冲击倾向性
坚硬厚层顶板
夹矸
底煤
rock burst in coalface
inducing factor
rock burst liability
hard and thick roof
rock parting
ground coal
作者简介
杜涛涛（1984-），男，山东枣庄人，工程师，主要从事冲击地压方面的研究．E-mail：yl_dutt@126．com．
