摘要
从模拟试验和现场实测发现:随着综放工作面长度的增加,采场覆岩关键层的破裂块度将相应减小,因而采场来压均匀,便于顶煤破碎和放出,但会发生主关键层来压现象,必须采取相应措施,将其加以有效控制。
It is found by model experiment and field measurement that with the length of fully-mechanized coal face, the size of the broken blocks of key strata in the coal face will decrease correspondingly, and thus the rock pressure in the face is much welldistributed. This is good for the top coal broken and caving conveniently. However, the overlying rock pressure of the main key strata will happen accordingly. Furthermore, the relevant measurements must be taken efficiently to control the key strata for coal mining safely.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2003年第1期45-47,共3页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金重点资助项目(50134040)
博士点基金资助课题(20010290003)。
关键词
采矿工程
超长综放工作面
采场矿压
关键层
mining engineering, super-length fully-mechanized coal face, rock pressure in coal face, key strata, the overlying rock pressure of main key strata
