摘要
为更好地研究工作面向正断层推进过程中覆岩运动基本特征,借助于相似模拟试验来完成对断层力学响应与位移特征研究。通过开采试验结果、覆岩位移特征以及支承压力变化情况得知工作面向正断层推采过程中冲击危险显示情况,合理确认危险区域。最终发现工作面距断层30 m时,支承压力显著提升,在工作面距断层20 m处,断层活化程度相对较高,随着与断层之间距离不断降低,工作面冲击危险性表现较高。
In order to better study the basic characteristics of the overburden movement during the normal fault advancement process,the mechanical response and displacement characteristics of the fault are studied by means of similar simulation tests.Through the mining test results,overlying rock displacement characteristics and supporting pressure changes,learned the appearance of impact hazards during the normal fault pushing and mining process,and reasonably confirmed the dangerous areas.Finally,it was found that when the working face was 30 m away from the fault,the supporting pressure increased significantly,and when the working face was 20 m away from the fault,the activation degree of the fault was relatively high.As the distance from the fault continued to decrease,the impact risk of the working face was higher.
作者
李鹏
卢佳欣
台连海
方海
高振
陈怀旭
LI Peng;LU Jiaxin;TAI Lianhai;FANG Hai;GAO Zhen;CHEN Huaixu(Bayan Gaole Coal Mine,Inner Mongolia Huangtao Legai Coal Co.,Ltd.,Ordos 017300,China;State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology,Shandong University of Science and Technology,Qingdao 266590,China;School of Mining Engineering,China University of Mining and Technology,Xuzhou 221116,China)
出处
《煤炭技术》
CAS
北大核心
2023年第2期29-33,共5页
Coal Technology
基金
山东省重点研发计划项目(2019GSF111038)
国家自然科学基金(52004144)。
关键词
正断层
相似模拟
支承压力
冲击地压
normal fault
similar simulation
abutment pressure
rock burst
