摘要
在分析煤矿水文地质条件的基础上,结合补充勘探资料,对煤矿一盘区南翼6煤顶板直接和间接含水层位置进行深入研究。认为煤矿6煤顶板充水含水层有石炭—二叠系砂岩裂隙水、白垩系志丹群孔隙裂隙水、第四系孔隙水和大气降水,充水通道有断层、陷落柱等天然通道和采煤后形成的导水裂缝带、封闭不良钻孔等人为通道。应用“三图-双预测”法,采用充水含水层的单位涌水量、构造发育程度、岩性特征等对6煤顶板水涌(突)水危险性进行了评价,划分出煤矿井田西部和中部部分地段为6煤顶板白垩系顶板冒裂危险性大区,井田东北部和南部部分地段为6煤顶板冒裂危险性小区。研究对矿井防治水工作具有重要意义。
On the basis of coalmine hydrogeological condition analysis,combined with supplementary exploration data,carried out detailed study on coal No.6 roof immediate and mediate aquifer positions in south wing,penal I,Tangjiahui coalmine.The study has considered the roof water filling sources have Permo-Carboniferous sandstone fissure aquifer,Cretaceous Zhidan Group pore,fissure aquifer,Quaternary pore aquifer and atmospheric precipitation.Water filling channels have fault,subsided column etc natural channels and coal mining formed water conducted zone,badly sealed borehole etc artificial channels.Through“triple map and dual prediction”∗method using water filling aquifer specific capacity,structure development degree and lithologic features etc carried out assessment for coal No.6 roof water inrush(burst)hazard assessment.The assessment has partitioned the minefield west part and middle part partial sectors as coal No.6 Cretaceous roof top-failure hazard large area,minefield northeast part and south part partial sectors as coal No.6 roof top-failure hazard small area.The study has significance on mine water control works.
作者
王红燕
Wang Hongyan(The First Hydrogeological Exploration Team,CNACG,Handan,Hebei 056004)
出处
《中国煤炭地质》
2020年第8期57-61,70,共6页
Coal Geology of China
关键词
顶板充水含水层
富水性分区
冒裂安全性
“三图-双预测”法
roof water filling aquifer
water yield property partition
top-failure safety
“triple map dual prediction”method
