小茅塔水库成库条件分析

Analysis on geologic condition for building Xiaomaota Reservoir

小茅塔水库库区内以碳酸盐岩分布为主,右岸出露鱼洞子暗河泉点,采用手持GPS泉点定位与地质构造分析相结合的手段,查清了东西向发育的区域性断裂及其次生构造对地下水的影响,由此揭示出鱼洞子暗河系统的发育规律,及地下水的流向,为后续勘察设计工作提供了较为准确的地质依据。

The carbonate rock distributes over the greater part of Xiaomaota Reservoir. A hidden stream named Yudongzi passes through the right bank of the reservoir. The E-W developed regional fault and its secondary structure are investi- gated by means of positioning the spring outcrops with portable GPS instrument and linking with geologic structure analy- sis to find out the developing circumstances of the hidden stream and to assess the posibility of reservoir leakage.