摘要
本文指出了立井井筒在留设有防护煤柱时受到地下开采的影响而发生变形破坏的地点和形式,分析了引起破坏的原因,提出了防护立井破坏的可行措施。
On the basis of investigations, this paper points out the places and forms of the deformation and failure in vertical shafts due to underground mining in existence of safety pillars and analyses the major factors which cause the deformation and failure of shaft walls. It also presents some feasible measures to protect the vertical shafts.
出处
《山东矿业学院学报》
CAS
1989年第4期40-43,共4页
Journal of Shandong University of Science and Technology(Natural Science)
关键词
采矿
地下开采
立井
井筒
rock strata movement
surface movement
shaft deformation
boundary angle
critical deformation value.
