摘要
通过理论分析并结合模拟实验,提出了大采高覆岩关键层"悬臂梁"结构的3种运动型式,即:"悬臂梁"直接垮落式、"悬臂梁"双向回转垮落式、"悬臂梁-砌体梁"交替式。结合关键层"悬臂梁"与"砌体梁"结构对采场矿压影响的对比分析,揭示了关键层"悬臂梁"结构3种运动型式对采场矿压的不同影响规律,并得到了补连塔煤矿7.0 m支架综采工作面矿压实测数据的验证。
With the theoretical analysis and the simulation experiment applied,three moving types of key strata cantilever structures were put forward as follows：’cantilever’ directly baggy fall type,’cantilever’ bi-directional rotation baggy fall type,and ’cantilever-voussoir beam’ alternating movement type.Combined with the comparative analysis about the influence on the ground pressure of the key strata ’cantilever’ and ’voussoir beam’ structure,the different influence law of the three moving types of the key strata cantilever structure on the stope mine pressure was revealed,which was also verified by the measured data of the fully-mechanized face in Bulianta Coal Mine with 7.0 meters height supports.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2011年第12期2115-2120,共6页
Journal of China Coal Society
基金
国家自然科学基金和神华集团联合资助项目(51174288)
江苏高校优势学科建设工程资助项目(PAPD)
关键词
大采高
关键层
悬臂梁
运动型式
矿压
砌体梁
large mining height
key strata
cantilever
moving type
ground pressure
voussoir beam
