耿达水电站溢流坝与非溢流坝错位原因分析

Case Study of Staggered Joint Between Overflow Dam and Non-overfolw dam at Gengda Hydropower Station

耿达电站拦河闸１９８６年３月下闸蓄水，出现溢流坝与非溢流坝接缝错位问题，运行１０年来，错位逐年发展，已达２４ｍｍ．本文对错位原因进行了分析，得出错位近期尚不致危及拦河闸安全，拦河闸坝符合正常坝条件．

The gates at Gengda hydropower station were closed for filling in March,1986.Joint between overflow din and non-overflow dam has staggered since then.After 10 years operation,staggfring develops year by year and until now is of 24mm.Case study was carried out to conclude that the ataggering will not endanger the safety of dam recently and the dam meets the requirements of normal dam.