摘要
通过相似模拟实验得出综放开采过程中覆岩离层裂隙变化形态 ,给出关键层初次破断前后离层裂隙当量面积和不同裂隙发育区的空隙渗透系数的理论解 ,在靖远局魏家地煤矿 1 1 0综放面实测基础上 。
Based on the model test of simulated material, the distribution of bed separated fissures is measured in the process of fully mechanized top coal caving.The analytic formulas of eqaivalent areas of bed separated fissures are calculated both ahead of and behind initial rupture of the key strata, and the analytic formulas of interstice permeability coefficients are also calculated for different fissure district. By in situ observation and monitoring in working face 110 # of Weijiadi coal mine, Jingyuan ming bureau, the interstice permeability of gob fissure region is studied.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2000年第5期604-607,共4页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金! ( 597340 90 )
关键词
离层裂隙
空隙
渗透系数
瓦斯运移
综放开采
bed separated fissures, equivalent area, interstice, permeability coefficient, gas delivery
