文献类型：期刊文献

英文题名：Dynamic response of high position and extremely thick hard strata

作者：Wang, Shuli Zhang, Kaizhi Zhu, Guangli

第一作者：Wang, Shuli

机构：[1] College of Mining and Safety Engineering, Shandong University of Science and Technology, Shandong Qingdao, 266590, China; [2] College of Mining, Guizhou Institute of Technology, Guizhou Guiyang, 550003, China

第一机构：College of Mining and Safety Engineering, Shandong University of Science and Technology, Shandong Qingdao, 266590, China

年份：2016

卷号：21

期号：24

起止页码：7861-7870

外文期刊名：Electronic Journal of Geotechnical Engineering

收录：EI(收录号：20165203183957);Scopus(收录号：2-s2.0-85006927666)

语种：英文

外文关键词：Coal deposits - Spatial distribution - Earthquakes - Rock bursts

摘要：High position and extremely thick hard strata mostly exist in overlying strata of coal seam. With the mining of coal seam, the integrally breaking movement of high position and extremely thick hard strata will be taken place easily of one or several working faces. It must bring great dynamic responses, just like mine earthquake and rock burst. To divide the shock hazard area and design reasonable anti-shock measures must be on the basis of researching characteristics and law of dynamic responses. With the engineering background of high position and extremely thick red beds (200m) of No.10302 working face in Baodian mine, China, collecting micro-seismic through modern SOS monitoring system, and analyzing temporal-spatial distribution of dynamic responses. Results show as following: on the time, frequency of micro-seismic improve significantly with the increase of mining intensity, dynamic responses were mostly occupied by micro-seismic which energy below 104J, dynamic responses which energy greater than105J called strong mine earthquake show periodicity. On the space, most of micro-seismic which energy below 104J concentrate on the lower surface of red beds and lower strata, but most of strong mine earthquake distribute on red beds, and all dynamic responses develop from the lower strata to the middle of red beds. ? 2016 ejge.