涝河水库右坝肩渗流稳定性评价

The Evaluation on Stability of Seepage Flow of The Right Dam Abutment in Laohe Reservoir

涝河水库大坝1978年9月拦洪蓄水,建成初期曾在右坝脚形成管涌,1982年至1985年先后作了回填处理及上堵下排的工程措施,经多年的运行观察有一定的效果,但没有达到预期的目的。本文进行了右坝肩的渗流分析,并建议采用高压喷射防渗墙的工程措施。

Laohe Reservoir came into operation in September 1978. During beginnings, piping phenomenon appeared in the right dam toe. Some measure, such as upstream blocking and downstream drainage had been taken one after another from 1982 to 1985. Although those measures obtained some effect, they still did not meet the desired effect. In this paper, the analysis of seepage flow through stratum of the right dam abutment has been done, and there withal, a suggestion of constructing the high-pressure injection cutoff wall is made.