摘要： 小干沟水库地处青藏高原严寒地区，水库大坝溢洪道闸门的冬季安全运行尤为重要，采取潜水泵绕流防冰冻解决了这一问题，且投资少，便于管理，效益显著。

Abstract: Xiaogangou Reservoir is located in the freezing region of Qinghai-Tibet Platean, it is quite important for safety operation against freezing for spillway gate in winter, submersible pump is used to resolve this problem, which proved to be comparatively lower cost, convenient management and remarkable benefits.?