注浆加固技术在沿空掘巷中的应用  

Application of grouting reinforcement technology in roadway driving along next goaf

作　　者：满建康[1,2] 丁可可[1,2] 任松杰[1,2] 蒋志刚[1,2] 刘栋[1,2] 

机构地区：[1]中国矿业大学矿业工程学院,江苏省徐州市221116 [2]中国矿业大学煤炭资源与安全开采国家重点实验室,江苏省徐州市221008

出　　处：《中国煤炭》2011年第7期60-63,共4页China Coal

基　　金：江苏高校优势学科建设工程资助项目

摘　　要：为确定宁夏某矿12203工作面沿空掘巷合理的煤柱宽度以及沿空巷道可靠的围岩控制技术,以沿空掘巷大、小结构理论为基础,通过数值模拟分析并根据工程实践,提出了采用5 m小煤柱进行护巷的方法,设计了沿空掘巷支护技术方案并配合注浆加固技术以提高煤柱的承载能力。实践表明,注浆加固技术可以有效地控制沿空掘巷的围岩稳定性。It is necessary for 12203 working face in a coal mine to determine the reasonable coal pillar width of roadway driving along next goaf and its dependable control technology of surrounding rocks.Based on stability principle of big and small structures and numerical simulation combined with engineering practice,the proposed scheme of 5 m coal pillar is used to protect the roadway driving along next goaf.In addition,the supporting technology solutions are put forward and grouting reinforcement technology is adopted to improve supporting capacity of pillar in this roadway.Practice shows that grouting reinforcement technology could control the stability of surrounding rocks effectively in roadway driving along next goaf.

关 键 词：沿空掘巷 注浆加固 围岩控制 

分 类 号：TD353.8[矿业工程—矿井建设]