用比拟法与稳定流“大井”法计算预测铁嶂矿区白云岩矿矿坑涌水量  

Discussion on mine water gushing prediction of dolomite ore in Tiezhang mining area—contrastive forecast of analogy method and steady stream of big well method

作　　者：祝小辉 

机构地区：[1]广东省核工业地质局二九二大队,河源517001

出　　处：《矿产勘查》2012年第4期570-574,共5页Mineral Exploration

摘　　要：根据广东省紫金县黄塘镇铁嶂矿区白云岩矿地质普查工作成果,分别采用水文地质比拟法、稳定流大井法对该矿区进行矿坑最大涌水量预测,并进行对比验证。其中水文地质比拟法计算结果为5762m3·d-1,稳定流大井法计算结果为1975.8m3·d-1,两者相差甚远。综合考虑钻孔抽水试验实际情况、矿区水文地质条件及岩溶发育分布特征等,最后选用更能代表矿山未来开采时的实际水文地质条件的比拟法计算预测结果,即矿坑未来最大涌水量采用5762m3·d-1。Based on the results of geological survey work on dolomite ore in Tiezhang mining area of Zijin County, Guangdong Province Huang Town, hydrogeological analogy method and steady stream of big well method were used to forecast the maximum water inflow of the pit, and comparative validation was made between the two methods . According to the prediction results of maximum water inflow of the pit, the result of hydrogeological analogy method is 5762 m^3·d^-1 while that of steady stream of big well method is 1975.8 m^3·d^-1, which are far away from each other. Taking the actual situation of drilling pumping test, mining area hydrogeological conditions and karst development distribution characteristics into consideration, prediction result of hydrogeological analogy method was finally chosen for its closer to the real hydrogeological conditions of mining future exploitation, that is to say, 5762 m^3·d^-1 will be used as the maximum water inflow of the pit.

关 键 词：白云岩 水文地质比拟法 大井法 矿坑涌水量 广东 

分 类 号：TD742[矿业工程—矿井通风与安全]