辽宁工程技术大学学报（自然科学版）Issue(1)：39-43,5.
沿空掘巷合理窄煤柱宽度确定与围岩控制技术
Rational width of narrow coal pillar and control technology of surrounding strata at roadway driven along goaf
摘要
Abstract
Roadway driven along goaf is a key method for improving coal resource recovery. In order to further understand the surrounding rock control technology at a roadway driven along goaf, an experimental study has been conducted at 12203 working face in Zaoquan coal mine. The rational narrow coal pillar width is determined as 6m wide by using the method of theoretical calculation and numerical simulation. Based on the big and small structure theory, the key approach for maintaining surrounding rock stability at roadway driven along goaf is to keep the coordination between big and small structures while to maintain the small structure stability is fundamental. According to bolting surrounding strength reinforcement theory, the combination of supports of cable, mess, anchor with high strength and high pretension has been applied. In addition, the grouting at narrow pillar wall has been used to strengthen the support. The industrial case study demonstrates that the surrounding rock deformation can be effectively controlled, and the surrounding strata stability at roadway can be achieved by using the support technology developed.关键词
沿空掘巷/数值模拟/窄煤柱宽度/注浆加固/UDEC/大小结构/联合支护/围岩控制Key words
roadway driven along goaf/numerical simulation/narrow coal pillar width/grouting strengthening/UDEC/big and small structure/combine support/surrounding rock control分类
矿业与冶金引用本文复制引用
杨吉平..沿空掘巷合理窄煤柱宽度确定与围岩控制技术[J].辽宁工程技术大学学报（自然科学版）,2013,(1):39-43,5.基金项目
教育部新世纪优秀人才支持计划资助项目(NCET-09-0727) （NCET-09-0727）
