Study on hazard determination of water accumulation in the uncertain mining gobs
TI Zhengyi1， ZHANG Feng1， QIN Hongyan2， ZHU Zhijie1， QIAO Ning1
1.Liaoning Technical University College of Mining Engineering， Fuxin， Liaoning 123000， China；2.North China Institute of Science & Technology， Beijing 101601， China
Abstract：In order to determine the water area of the upper goaf of the 10# coal seam of Shengli Coal Mine and avoid the threat of water damage in the process of coal seam mining， the mechanical analysis model of deformation and failure of overburden in goaf of 10# coal seam in Shengli Mine is established based on the theory of plate and shell and the theory of key strata. The maximum conductivity height and the maximum depth of floor fracture in each subarea of 10# coal seam are obtained by combining empirical formula method and numerical simulation method. Through the criterion for judging the danger of water accumulation in the upper goaf， it is concluded that the 10# coal mining process will be affected by the water in the upper 6# coal seam， while not by the water in the 2# coal seam， which is of theoretical significance and practical value for the proposal of mine water prevention and safe exploitation.
题正义,张 峰,秦洪岩,朱志洁,乔 宁. 上覆不明采空区积水危险性判定技术研究[J]. 华中师范大学学报(自然科学版), 2019, 53(6): 915-921.
TI Zhengyi,ZHANG Feng,QIN Hongyan,ZHU Zhijie,QIAO Ning. Study on hazard determination of water accumulation in the uncertain mining gobs. journal1, 2019, 53(6): 915-921.
2019, Vol. 53 
