采矿与安全工程学报Issue(5)：674-680,7.
近断层采动巷道变形破坏机制与控制技术研究
Deformation failure mechanism and control technology of mining-induced roadway near a fault
摘要
Abstract
In response to the surrounding rock asymmetric deformation failure and supporting structure failure during excavation of Hongling Coalmine mining-induced roadway (15141 upper roadway) near a fault, numerical simulation and engineering application of its deformation failure mechanism and con-trol technology have been studied. The results show that asymmetric mining-induced stress field near the fault zone, shearing slippage damage among the key parts of roadway and hulking deformation of coal and rock mass are the main causes of the asymmetric large deformation failure and supporting structure failure. The surrounding rock control technology of this kind of roadway, with reinforced sup-port of key parts by using high-resistance yielding support and grouting reinforcement to control shear-ing slippage damage of key parts and improve its carrying capacity, weaken differences in deformation of key parts of surrounding rock and prompt uniform bearing on supporting structure, has been put for-ward to control asymmetric large deformation of the roadway by using asymmetric coupling support principle and high-resistance yielding bolt mechanical property. The research results have been suc-cessfully applied to a field trial, which means by using high-resistance yielding support and routing re-inforcement asymmetric support technology, deformation and asymmetry of the roadway can be con-trolled effectively and stability of surrounding rock can be improved substantially.关键词
近断层/采动巷道/非对称变形/高强让压锚杆Key words
near fault/mining-induced roadway/asymmetric deformation/high-resistance yielding bolt分类
矿业与冶金引用本文复制引用
王襄禹,柏建彪,李磊,韩志婷..近断层采动巷道变形破坏机制与控制技术研究[J].采矿与安全工程学报,2014,(5):674-680,7.基金项目
国家自然科学基金项目(51204166，51174195)；江苏高校优势学科建设工程项目 （51204166，51174195）
