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胶东纱岭金矿区水文地质特征

Hydrogeological characteristics of Shaling Gold District in Jiaodong

  • 摘要: 纱岭金矿区位于山东省莱州市北东部,在胶东焦家断裂金成矿带上。通过对工程背景、区域水文地质特征及矿区水文地质特征综合分析,认为纱岭金矿区含水层主要为第四系孔隙水含水层、基岩风化带裂隙水含水层、上盘(极)弱富水含水层、下盘弱富水含水层,隔水层主要由焦家断裂中部的断层泥及两侧的碎裂岩组成。对比了工勘孔预测竖井涌水量与竖井掘进建设中实际涌水量,分析了实际涌水量偏大的影响因素,为掌握焦家断裂深部的水文地质特征提供了参考。

     

    Abstract: Shaling Gold District is located in the northeast of Laizhou City,Shandong Province,and is on the Jiaodong Jiaojia Fault gold metallogenic belt.Based on the comprehensive analysis of engineering background,regional hydrogeological characteristics,and district hydrogeological characteristics,the study takes that the water-bearing strata mainly include Quaternary fissure water water-bearing strata,matrix weathering zone fissure water water-bearing strata,hanging wall(extremely) weakly water-rich water-bearing strata,footwall weakly water-rich water-bearing strata,and the water-resisting strata mainly consist of the fault mud and the cataclasite on both sides in Jiaojia Fault.The study compared the water inrush amount in vertical shafts predicted by engineering exploration drill and the actual water inrush during the construction of vertical shaft excavation and analyzed the influence factors leading to more water consumption in actual situations,providing references to master the hydrogeological characteristics deep in Jiaojia Fault.

     

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