摘要
研究区大地构造属西伯利亚板块与华北板块大陆边缘增生和碰撞过渡区。矿区出露的地层主要为石炭系上统-二叠系下统格根敖包组和第四系,格根敖包组为一套沉积碎屑岩,含有不连续的裂隙水;第四系为全新统冲洪积黄褐色亚砂土,多为弱含水层或透水不含水层。矿区内无地表水体,地下水为第四系松散岩类孔隙水和基岩裂隙水,补给来源主要为大气降水,径流方向大致为由西向东。矿区含水层的分布、厚度及富水性受节理裂隙及断裂构造的控制,变化很大。矿坑涌水量的估算采用“大井法”计算所得,计算参数为抽水试验所得。“大井法”计算矿坑最大涌水量为322.53 m^(3)/d,可以作为矿山开采设计的依据。
Our study area belongs to the transitional region of accretion and collision of the continental margin of the Siberian Plate and the North China Plate.The exposed strata in the mining area are mainly the Gegenaobao Formation of the Carboniferous and Permian periods.The Gegenaobao Formation is a set of sedimentary clastic rocks containing discontinuous fissure water.The Quaternary is a Holocene alluvial yellow-brown subsoil,which is mostly a weak aquifer or an impermeable layer.There is no surface water body in the mining area,and the groundwater is Quaternary loose rock pore water and bedrock fracture water.The main source of recharge is atmospheric precipitation.The direction of groundwater flow is generally from west to east.The distribution,thickness,and water richness of aquifers in the mining area are controlled by joint fissures and fault structures and vary greatly.In this paper,the estimation of mine water inflow is obtained by the“Big Well Method”.The calculation parameters are obtained by pumping tests.The Big Well Method calculated the maximum water inflow of the mine as 322.53 m^(3)/d,which can be used as the basis for mining design.
作者
王陶然
张泽润
WANG Taoran;ZHANG Zerun(The Eighth Geological Brigade of the Geological and Mineral Exploration and Development Bureau of Hebei Province(Marine Geological Resources Survey Center of Hebei Province),Qinhuangdao,Hebei 063000,China)
出处
《中国锰业》
2024年第3期50-54,共5页
China Manganese Industry
关键词
西乌珠穆沁旗
锰矿
水文地质
涌水量预测
Xiwuzhumuqin Banner
Manganese ore
Hydrogeology
Water inflow prediction
