采矿与安全工程学报2016，Vol.33Issue(2)：214-219,6.DOI:10.13545/j.cnki.jmse.2016.02.004
深厚表土薄基岩综放工作面地表沉陷与冲击地压联动效应研究
Connected effect between surface subsidence and rock burst in fully mechanized caving face under deep alluvium
摘要
Abstract
According to the rock burst prevention problem of fully mechanized caving face under deep alluvium in Xinjulong coal mine, field research was conducted to study connected effect between sur-face subsidence and rock burst. The results show that the starting distance of surface subsidence in fully mechanized caving face under deep alluvium is about 114m, which is merely 1/7 of the mining depth and much lower than the starting distance of mining depth in general mining conditions. When the sur-face is in the full-mining stage, an obvious connected effect is observed between the surface subsidence velocity and rock burst. When the surface subsidence velocity increases rapidly, the dynamic pressure manifestation can occur strongly in working face, and the rapid increase of surface subsidence velocity is generally ahead of dynamic pressure manifestation. Based on a comprehensive analysis of seismic and surface subsidence data, a certain correlation is verified between the occurrence of rock burst, sur-face subsidence and strata movement , which can be used as an auxiliary reference for rock burst pre-warning.关键词
深井/厚表土/薄基岩/地表沉陷/冲击地压/联动效应Key words
deep shaft/deep alluvium/thin bedrock/surface subsidence/rock burst/connected effect分类
矿业与冶金引用本文复制引用
王乃国,朱斯陶,王慧涛,姜福兴..深厚表土薄基岩综放工作面地表沉陷与冲击地压联动效应研究[J].采矿与安全工程学报,2016,33(2):214-219,6.基金项目
国家自然科学基金项目(51274022，51174016)；国家青年科学基金项目(51204010) （51274022，51174016）
