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本文通过对武山地区地质构造演化过程的分析,重塑矿区岩溶发育史,进而推断深部岩溶发育程度,探讨了矿区外围岩溶发育规律,为预测深部矿坑涌水量、安全开采铜矿提供依据。研究表明:武山矿区的岩溶建造期从晚古生代开始,深部岩溶主要是在燕山期形成;北部岩溶发育受到硫化矿体和纵向断裂的影响;矿区外围岩溶总体发育程度不高的关键因素是区域构造背景控制了原始地下水动力场,限制了岩溶发育的深度;三叠系灰岩及第四系透水性能决定了目前赤湖水无法对深部开采造成严重威胁。
Based on the analysis of the evolution of geological tectonics in Wushan area, this paper reshapes the history of karst development in the mining area, and then deduces the degree of deep karst development. The development of karst in the periphery of the mining area is discussed, which provides the basis for predicting the water inflow in deep pits and safely mining copper deposits. The results show that the karst construction period of Wushan mining area starts from the late Paleozoic, the deep karstification is mainly formed during the Yanshanian period, the karstification development of the northern part is affected by sulphide ore bodies and longitudinal faults, and the key factor of the low karst development in the periphery of the mining area is the regional structure The background controls the original groundwater dynamic field, which limits the depth of karst development. Triassic limestone and Quaternary water permeability determine that the present red lake water can not pose a serious threat to deep mining.