摘要
为了研究错层位外错式布置情况下的巷道布置问题,根据国内沿空掘巷的研究现状,通过理论计算和现场实测对察哈素煤矿302工作面的顶煤应力分区进行了划分,数值模拟分析了工作面开挖后的应力场和相应支护方案下的塑性区分布。结果表明:错层位巷道布置情况下,顶煤与下层煤处于不同的应力状态,说明了错层位巷道布置和支护方案的可行性。
To research the problem of roadway layout under the condition of external misaligned stagger arrangement,according to the research status of domestic gob-side entry driving,the top coal stress division of 302 working face in Chahasu Coal Mine was divided by theoretical calculation and field measurement.The stress field after excavation of the working face and plastic zone under the corresponding support scheme is analyzed by numerical simulation.The results show that the top coal and the bottom coal are in different stress states under the condition of roadway layout in staggered strata,which indicates the feasibility of roadway layout and support scheme in staggered strata.
作者
苏泽华
刘敬东
苏越
王志强
王树帅
SU Zehua;LIU Jingdong;SU Yue;WANG Zhiqiang;WANG Shushuai(College of Resources and Safety Engineering,China University of Mining and Technology,Beijing 100083,China;Guodian Jiantou Inner Mongolia Energy Co.,Ltd.,Ordos 017209,China)
出处
《煤矿安全》
CAS
北大核心
2019年第8期213-216,共4页
Safety in Coal Mines
基金
国家自然科学基金面上资助项目(51774289)
中央高校基本科研业务费专项资金资助项目(2011QZ06)
关键词
巷道布置
沿空掘巷
应力分析
现场实测
数值模拟
roadway layout
gob-side entry driving
stress analysis
field measurement
numerical simulation
