小东江水电站检修、渗漏排水系统改造分析

小东江水电站大坝由于地基岩石破碎,固结灌浆质量差,渗漏水非常严重,而渗漏集水井的有效容积过小,因此对小东江检修、渗漏排水系统进行了第一次改造。1992年6月对小东江大坝采取了补强灌浆措施后,效果非常显著,并经过几年对小东江大坝的渗漏观测,发现渗漏水量大大减小,于是进行了第二次改造。

The Course and Simple Analysis of Twice Transformations for Xiaodongjiang Hydropower Station's Service and Seepage Drainage Systems

As a result of the dam's base rocks of Xiaodongjiang Hydropower Station were shattered,the grouted oar consolidated badly,the water seeped seriously and the available capacity of seepage catchment well was too small,the Xiaodongjiang Hydropower Station's service and seepage drainage systems were transformed for the first time.In June 1992,the Xiaodongjiang Hydropower Station's dam was reinforced by grouting oar.The effect was obvious through observing for some years.We had found that the seepage water was little.So the service and seepage drainage systems were transformed for the second time. The service catchment well was together with the seepage catchment well on the top.The service and seep drainage systems were independent,but they can replace each other.So the transformation was successful.