潞安矿区五阳煤矿8005工作面关键层分布特征及离层发育监测  

Critical Layer Distribution Features and Abscission Layer Development Monitoring in Wuyang Coalmine Coal Face No.8005,Lu’an Mining Area

作　　者：樊斌 赵明 李世念 林倚天 Fan Bin;Zhao Ming;Li Shinian;Lin Yitian(Wuyang Coalmine,Shanxi Lu an Environmental Protection Energy Exploitation Co.Ltd.,Xiangyuan,Shanxi 046299;Exploration and Research Institute,CNACG,Beijing 100039)

机构地区：[1]山西潞安环保能源开发股份有限公司五阳煤矿,山西襄垣046299 [2]中国煤炭地质总局勘查研究总院,北京100039

出　　处：《中国煤炭地质》2022年第7期34-38,共5页Coal Geology of China

摘　　要：以五阳煤矿8005工作面采煤沉陷治理工程为背景,对工作面地层中覆岩关键层的平、剖面分布特征进行分析研究,得出主注浆层位亚关键层4沿工作面推进方向先变薄再变厚的基本特征,并据此提出“单层—双层—单层”的过渡式注浆充填方式。在工作面推进过程中利用分布式光纤传感监测技术对覆岩全层位变形进行了连续观测,为工作面开采初期单层注浆工作的开展提供了重要参考依据。Taking the Wuyang coalmine coal face extraction subsidence governance project as the background support has carried out analytic study on coal face strata overburden critical layer planar and sectional distribution features,and worked out grouting horizon subcritical layer No.4 along working face advance direction thinning first and then thickening essential features.In view of the above have proposed“single layer-double layers-single layer”transitional grouting filling mode.During the face advance process,the distributed optical fiber sensing and monitoring technique has been used to carry out overburden full horizon deformation continuous observation,thus provided important reference basis for coal face initial extraction stage single layer grouting work.

关 键 词：采煤沉陷 关键层 离层 注浆 

分 类 号：TD745[矿业工程—矿井通风与安全]