摘要
利用自制的煤岩导水注水试验台对山西六大统配煤矿主采煤层的渗透系数进行了测定,获得了渗透系数与体积应力及孔隙水压的关系式T=a_texp(-b_t■+ctp)及有关结论。该成果在山西潞安矿务局王庄煤矿工业性试验证明,煤层注水量随注水压力升高呈指数规律增加;当注水压力达到某值时,注水效果良好;要采用动压注水;煤层实际注水量大于理论注水量。
Permeability coefficient of main coal seams in six state mines in Shanxi Province was measured in a self-made water infusion test rig. Relation between permeability coefficient and volumetric stress as well as pore water pressure and relevant conclusions were obtained, which is expressed in a formula T = a_t exp(-b_t■ +c_tp). It was proved by the commercial test made in Wangzhuang mine, Luan in Shanxi. The conclusions are the water quantity for water infusion will increase with water pressure in a exponential rule, water infusion can achieve good results when water infusion reaches a certain value;It is better to introduce dynamic water infusion; and the actual water quantity infused is greater than the theoretical water quantity.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1993年第4期43-50,共8页
Journal of China Coal Society
基金
山西省自然科学基金资助项目
关键词
体积应力
孔隙水压
渗透系数
煤层
volumetric stress
pore water pressure
permeability coefficient
test and research
