摘要
下告铁矿床位于河源新华夏构造带的南东侧,南岭东西向复杂构造带第三带东段和以合水断裂带为代表的北东向构造带反接复合部位,矿体的近矿围岩为夕卡岩。矿床内岩溶发育规律,地表水、断层水、岩溶水互为连通,采取单孔、多孔、群孔抽水试验,选择水均衡法和非稳定流"大井"法进行矿坑涌水量预测对比分析,其矿坑涌水量大,水文地质条件复杂,属于溶洞为主的岩溶充水矿床,矿山开采时需注意水文地质条件。
The Xiagao iron deposit is located in the southeastern New Huaxia tectonic belt, eastern section of third belt of EW - trending Nanling tectonic belt and reverse conjunction part of NE - trending Heshui fault zone. The country rock is skarn. With the deposit, the karst distributed in regular form. The surface water, fault water, and karst water connected each other. Based on the pumping test by a single hole, multi holes and group of holes, the comparative analysis was carried out by selecting water balance method and non steady flow ＂Dajing＂ method, the study result indicated that water inflow of the mine is large, and hydrogeological conditions are very complicated, the deposit belongs to the karst - water filling type deposit. Therefore, attention should be paid to these complicated hydrogeological conditions during mining operation.
出处
《矿产勘查》
2015年第1期92-97,共6页
Mineral Exploration
关键词
下告铁矿床
水文地质条件
矿坑涌水量
广东
Xiagao iron deposit, hydrogeological conditions, water inflow of mine, Guangdong
