摘要
以下沟煤矿ZF180 4综放工作面现场实测为基础 ,结合理论计算 ,得出采动影响条件下工作面超前支承压力范围 ,为两顺槽的端头支护提供了可靠的理论依据 ;同时通过实测与模型计算相结合 ,验算了区段煤柱留设尺寸的合理性 ,并在此基础上探讨了沿空掘巷无煤柱开采的可行性。
Based on the field test and theoretical calculation of Face ZF1804 adopted longwall with top-coal caving mining,the paper presents the scope of abutment stress,which provides theoretical foundation for two-end supporting.Combined with field tests and numerical simulation,the size of section pillar is proved to be reasonable and the feasibility of driving without section pillar is also studied.
出处
《煤矿开采》
2004年第1期29-31,33,共4页
Coal Mining Technology
关键词
下沟煤矿
综放工作面
支承压力
煤柱
留设尺寸
沿空掘巷
Longwall with top-coal caving
Abutment stress
Section coal pillar
Size of pillar
Driving without section pillar
