摘要
建筑物下大条带协调式全采方法是先采用大条带跳采，采后地表产生较小的（约３０％）沉陷变形，而后仅用半数工作面即可联合开采剩余条带，最终实现全部开采，地表产生剩余的（７０％）沉陷变形量。此方法具有条带法开采和多工作面联合开采的优点，又同时克服了它们的某些缺点，明显地减少了地表沉陷变形值和采动影响次数，是保护地面建（构）筑物十分有效的开采措施．
The method involves mining of the coal seam under surface structures by alternate large strip partial extraction, slight subsidence deformation, about 30% takes place after mining. Following that the remaining pillars are extracted with only half the number of work faces used in the first phase of mining for full extraction of seam, allowing the surface to experience the remaining 70% of subsidence deformation. The mining method incorporates the merits of both partial extraction and multi-face working, while their respective weakness are accordingly offset. It proves to be an effective mining approach for protecting surface structures for drastic reduction of surface subsidence value and frequency of occurrence of mining-induced disturbances.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1995年第6期632-636,共5页
Journal of China Coal Society
关键词
建筑物下
采煤
条带式开采
协调式全采法
mining under surface structures, total extraction with large strips in a coordinated manner, ground subsidence and deformation, multi-face mining
