The carbonate rock is widespread near the Jichang area on the left bank of midstream within Shanchahe , groundwater occurred in carbonate rocks ,aquifer is mainly porosity,cracks,caves and karst system,the regional groundw-ater is mainly karst water.Based on karst landform,distribution of carbonate and structural geology ,the paper trying to bring together the survey data about the Pingzhai reservoir nearby , to analyse the groundwater occurrence and migration characteristics governed by folded structure ,come to the conclusion that the main runoff passage of the regional groundwa-ter is karst pipeline system and its migration controlled by Shantang syncline .There are mainly two runoff types of ground-water ,runoff in the bedding rock on one-sided about Shantang syncline and compound runoff on Jichang anticline .The re-search achievements are applied to analyse about reservoir building and design of seepage proof curtain in Pingzhai reser -voir on the Shanchahe .%贵州三岔河中游左岸鸡场一带碳酸盐岩集中分布, 地下水赋存于碳酸盐岩中, 含水空间主要有孔隙、 裂隙、 洞穴及管道, 地下水主要表现为岩溶水. 从区内岩溶地貌和碳酸盐岩分布、 地质构造条件出发,结合附近平寨水库勘察资料, 就褶皱构造控制条件下地下水赋存条件与运移特征进行分析, 认为区内岩溶管道系统是地下水的主要径流通道, 其运移受控于三塘向斜, 地下水径流形式主要有三塘向斜单翼顺层径流和鸡场背斜复合型径流两种类型, 该研究成果已应用于三岔河中游平寨水库成库条件论证及库首防渗设计中, 具有重要的水文地质意义.
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