摘要
为了有效解决深部高应力条件下潘一矿东区副井等候硐室底鼓治理问题,通过对该硐室的围岩性质、地应力状态等底鼓主要影响因素的分析,结合数值模拟,提出了底板超挖回填和深孔锚索注浆相结合的治理方案。工程实验结果表明,上述方案的实施取得了良好的支护效果,硐室底鼓得到了有效控制。
To overcome floor heave problems associated with deep high-stressed soft rock of auxiliary mine shafts in Panyi Coal Mine East effectively,the major affecting factors of chamber floor heave were analyzed based on character and in situ stress state of surrounding rock.Combining with numerical simulation,the control scheme that combining overbreak back-filling with deep-hole cable routing to control floor heave was proposed in this paper.Field experiment shows that,the scheme has effectively controlled the floor heave of the soft rock chamber.
出处
《中州煤炭》
2011年第5期8-10,13,共4页
Zhongzhou Coal
关键词
深井软岩
底鼓
底板超挖回填
深孔锚索注浆
soft rock in deep mine
floor heave
overbreak back-filling
deep-hole cable grouting
