采矿与安全工程学报2012，Vol.29Issue(2)：197-202,6.
迎采动面沿空掘巷围岩变形规律及控制技术
The Surrounding Rock Deformation Rule and Control Technique of the Roadway Driven Along Goaf and Heading for Adjacent Advancing Coal Face
摘要
Abstract
The roadway driven along goaf and heading for adjacent advancing coal face was in full procedure influenced by the dynamic pressure occurred by the lateral main roof broken, turned and stabilized of the upper sectional coal face, the surrounding rock would occur large deformation and difficult to maintain. This paper researched the surrounding rock deformation rule and control technique by theoretical analysis, numerical calculation and field test. The result shows that this roadway would occur asymmetrical deformation, small coal pillar and roof deformed greatly, improve support strength of small coal pillar and roof was the key to remain the roadway stable. According to the research, the better supporting technology is shown as follows: 1) Reasonably determine the width of small coal pillar, kept roadway in stress decreasing zone; 2) High strength and large elongation anchor controlled deformation of surrounding rock; 3) Reinforced support of the small coal pillar and roof to improve the carrying capacity of key parts. According to the engineering application in Qipanjing Mine, the supporting technology effectively controlled the deformation of surrounding rock of roadway, and achieved good results.关键词
沿空掘巷/迎采掘进/变形规律/围岩控制/加强支护Key words
roadway driven along goaf/ driven heading for adjacent advancing coal face/ deformation rule/ surrounding rock control technique: reinforced support分类
矿业与冶金引用本文复制引用
王猛,柏建彪,王襄禹,徐营,郭永红,曹金龙..迎采动面沿空掘巷围岩变形规律及控制技术[J].采矿与安全工程学报,2012,29(2):197-202,6.基金项目
国家自然科学基金项目(50774077) （50774077）
煤炭资源与安全开采国家重点实验室自主研究课题资助(SKLCRSM08X04) （SKLCRSM08X04）
中国矿业大学青年科研基金资助项目(2008A002) （2008A002）
