广东龙门县四围矿区岩溶发育规律及控制因素分析

Analysis of karst development law and its controlling factors in siwei mining area of Longmen county,Guangdong province

为确保石灰岩矿区的安全开采,需查明矿区范围内的岩溶发育情况和岩溶发育的控制因素。以广东龙门县四围矿区为研究区,通过开展区域范围水文地质勘查,查明四围矿区分为强、中等和弱3个岩溶发育区,区内碳酸盐岩分布、上覆盖层特征、水动力条件和地质构造控制着岩溶的发育,该结果为进一步矿区勘探设计提供参考依据。

In order to ensure the safe mining of limestone mining area,it is necessary to find out the karst development situation and the controlling factors in the mining area.Taking the Siwei limestone mining area as the exploration area,this paper carries out hydrogeological exploration within the mining area,and finds out that the mining area is divided into three areas:strong karst development area,medium karst development area and weak karst development area.The distribution of carbonate rocks,characteristics of upper overburden layer,hydrodynamic conditions and geological structure in the area control the development of karst.The results provide a reference for further exploration and design of the mining areas.