Analysis on Monitoring Results of Comprehensive Treatment of High Forebay Slope,Hujiaya Hydropower Project

Jointly acted by Fault F7 and its affected zone,the high forebay slope of Hujiaya Hydropower Project on the Bailong River in Zhouqu County,Gansu Province continues collapsing and falling block stones during the slope construction,resulting in instability of the slope angle at bottom of the slope.This seriously affects the safety of the forebay slope in construction and operation periods.In design,not only rational design scheme but also feasible slope monitoring scheme are planned and raised.After completion of the treatment,the safety monitoring data is analyzed.The rationality of the slope treatment scheme and the safety assurance during operation are satisfied.