摘要
基于采动高集中应力对冲击地压的显著影响作用,采用有限差分数值方法对开采区域分采区、工作面以及巷道,进行了冲击危险区域划分;利用弹性基础梁"见方"理论划分得出,21141工作面回采过程中将经历七个危险时期,其中第六危险期为特别危险期。在危险区域、危险时期划分基础上,进行了冲击地压监测与防治实践,实践表明,对冲击地压煤层预先进行冲击危险区域、危险时期划分,有效指导了回采期间冲击地压监测与防治工作。
Base on the mining dynamic high concentrated stress obviously affected to the mine pressure bumping, the finite difference numerical method was applied to divide the mine pressure bumping dangerous area for the mining area, coal mining face and gateway in the mining region. The plastic basic beam ＂square＂ theory was applied to divide and obtain the seven dangerous periods occurred during No. 21141 coal mining process and the sixth dangerous period would be special dangerous period. Base on the dividing of the dangerous region and the dangerous period, the mine pressure bumping monitoring and measuring as well as the prevention and control practices were conducted. The practices showed that the dividing of the mine pressure bumping dangerous region and the dangerous period for the pressure bumping seam could be effectively to guide the monitoring and measuring as well as the prevention and control of the mine pressure bumping.
出处
《煤炭工程》
北大核心
2011年第10期83-86,共4页
Coal Engineering
基金
国家重点基础研究发展计划(973)项目(2010CB226806)
关键词
冲击地压
危险性预评价
冲击危险区域
危险时期
应力集中
mine pressure bumping
pre - assessment of danger
mine pressure bumping dangerous area
danger period
stress concentration
作者简介
潘俊锋（1979-），男，陕西咸阳人，工程师，2003年毕业于辽宁工程技术大学采矿工程专业，现在煤炭科学研究总院开采设计分院主要从事冲击地压、岩层控制、矿井安全高效开采等方面的研究工作。
