摘要
为获取高强度开采条件下煤体采动裂隙,以天地王坡矿3207工作面为背景,采用钻孔窥视法、测线法和测窗法等综合手段进行煤体采动裂隙现场实测研究。在此基础上,结合COMSOLMultiphysics软件研究煤体采动裂隙场对采动应力分布、煤层瓦斯压力的影响;探讨瓦斯压力与采动裂隙分布之间关系,并分析采动裂隙条件下抽放孔的合理布置方式。
The borehole camera method,single scan line method and sampling window method are used to study the mining-induced fracture field under high-strength mining conditions,based on the 3207 workface in Tiandi Wangpo coalmine. On this basis,the influences of mining-induced coal fracture field on mining-induced stress and gas pressure distribution are investigated by using COMSOL Multiphysics software. The relationship of gas pressure with mining-induced fracture distribution is discussed;and the reasonable layout of drilling holes under mining-induced fracture conditions is also analyzed.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2010年第A02期4188-4193,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
国家重点基础研究发展计划(973)项目(2005CB221503
2010CB226806)
"十一五"国家科技支撑计划重点项目(2006BAK03B06)
关键词
采矿工程
煤体采动裂隙场
实测
瓦斯抽放
数值模拟
mining engineering
mining-induced coal fracture field
measurement
gas drainage
numerical simulation
