摘要
结合周源山煤矿24采区上覆岩层实际情况,根据关键层强度和刚度理论判断了该煤矿关键层的位置及初次破断距,并且利用RFPA软件进行数值模拟分析,验证了理论计算的正确性,为煤矿开采提供开采参考依据。计算结果与该矿24采区已开采的工作面矿压显现及顶板下沉的实测结果大致相符。
Combined with the actual situation of overlying strata in Zhouyuanshan coal mine and based on the strength and stiffness conditions of key stratum,the location of key stratum and the first interval of roof breaking are inferred.The theoretical calculation is verified via the numerical simulation analysis with RFPA,which provides reference data to the mining in coal mines.Similar calculation results are obtained compared with the practical results of strata behaviors and the roof subsidence.
出处
《西部探矿工程》
CAS
2012年第7期99-103,共5页
West-China Exploration Engineering
基金
中国科学技术部科技人员服务企业行动项目
编号:2009GJD20039
湖南科技大学创新基金
编号:S100101
关键词
关键层判定
主关键层
初步断距
模拟分析
inference of key stratum
main key stratum
first interval of roof breaking
simulation analysis
