水资源与水工程学报2012，Vol.23Issue(2)：16-19,4.
长沟峪煤矿急倾斜煤层群裂隙演化及渗流规律
Fracture evolution and seepage rule of steeply inclined coal seam group in Changgouyu coal mine
摘要
Abstract
Taking the steep inclined coal seam group of Changgouyu coal mine for the engineering background , the paper analyzed the fracture development rule of overlying strata influenced by mining and seepage with discrete element method ( DEM ) . Along with gradually minging, mining - induced fracture field order stack, the complex distribution of fracture evolvement in surrounding rocks is nonlinear increase trend, this trend will create the physical mechanism of water - blocking. Through calculating the fractal dimension of opening and closeing of fracture by fractal theory, the paper obtained that the relationship between crack closure rate and seepage flow of mined - out areas is non - symmetrical curve ,and the infiltrations change fall behind the formation of water - blocking structure.关键词
急倾斜煤层群/采动裂隙场/渗流/覆盖法分形Key words
steep inclined coal seam group/ mining - induced fractures field/ seepage/ cover method fracture分类
建筑与水利引用本文复制引用
梁冰,盖迪,孙维吉,鲁秀生,赵芳芳..长沟峪煤矿急倾斜煤层群裂隙演化及渗流规律[J].水资源与水工程学报,2012,23(2):16-19,4.基金项目
国家重点基础研究发展计划资助(973计划)(2011CB201206) （973计划）
国家自然科学基金青年科学基金(50904033) （50904033）
辽宁省自然科学基金项目(20102090) （20102090）
