软岩大断面巷道底鼓治理方法探讨.pdfVIP

文 章 编 号：1672-5050（2016 ）06-010-04 DOI: 10.3969/j.cnki.issn1672-5050sxmt.2016.12.003 软岩大断面巷道底鼓治理方法探讨 张天东 1,2 ，苏学贵 1 ，杨宗一 1 （1.太原理工大学 矿业工程学院 ， 太原 030024 ；2.太原煤气化炉峪口煤矿，太原 030204 ） 摘 要：巷道底鼓往往是底板岩层层理破坏、矿压增大等综合作用的结果，会直接影响安全生产 。 针对峪口煤 矿 9 号煤首采区变电所所在位置的底鼓情况，通过分析巷道所处的特殊地质条件和围压增大造成底鼓的机理，提 出了采用底板锚杆配合底梁施工的治理方法。 经工程应用和监测分析，取得了良好效果，较好地解决了采区变电 所巷道断面较大、底板松软条件下的底鼓问题，为同类地质条件下巷道底鼓治理提供可行的借鉴经验。 关键词：底鼓；大断面；矿压；锚杆 中图分类号：TD322 文献标识码：A Control Method of Floor Heave in Large Section Roadway with Soft Rock 1,2 1 1 ZHANG Tiandong , SU Xuegui , YANG Zongyi (1. College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China; 2. Luyukou Mine, Taiyuan Coal Gasification (Group) Co., Ltd., Taiyuan 030204, China) Abstract: Floor heave, usually caused by the bedding damage and increased pressure of floor rock, directly affects the safety production in mines. On the analysis of the geologic condition and the mechanism of the floor heave caused by the increasing confining pressure, the paper proposes a floor heave control method in bottom beam construction with floor anchored bolt in the position of the substation of No. 9 first mining area in Luyukou Coal Mine. On the analysis on engineering application and monitoring, the results show that this method can solve the floor heave in the condition of large and soft floor in the substation roadway, providi