摘要
为彻底摸清贵州务川大竹园铝土矿首采区岩溶发育与岩性、构造等因素的关系,查明顶板岩溶地下水对矿井开采的危害,本文通过收集资料、开展水文地质调查、首采区涌水量计算、综合分析等方法对研究区水文地质特征及地层富水性进行研究.综合分析认为:研究区水文地质勘查类型划为第三类第二亚类第三型,即以岩溶充水为主要充水类型、顶板进水为次要充水类型、水文地质条件复杂的充水含水层与地表水体密切联系的岩溶充水矿床;矿井直接充水含水层为二叠系阳新统茅口组(P2m)和栖霞组(P2q),地表岩溶较发育,补给条件好,富水性强.
Abstract
In order to understand the relationship between karst development and lithology,structure and other factors in the first mining area of Dazhuyuan bauxite,and to find out the hazards of roof karst groundwater to mine mining,this paper researched the hydrogeological characteristics and stratum richness of Dazhuyuan bauxite in Wuchuan County,Guizhou Province,by collecting data,carrying out hydrogeological surveys,calculating the water inflow in the first mining area,and comprehensively analyzing the exploration methods.The comprehensive analysis showed that the hydrogeological exploration types in the mining area were divided into the third category-the second subclass-the third type,which is,mainly karst water-filled,roof water inflow,and the water-filled aquifer with complex hydrogeological conditions closely connected with the surface water body.The direct water-filled aquifer of the mine is P 2m and P 2q,and the surface karst of this layer is relatively developed,the recharge conditions are good,and the water richness is strong.
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