满拉大坝工程地质问题处理

Engineering geology problem treatment at Manla dam

满拉水利枢纽位于雅鲁藏布江支流年楚河上游。坝基岩石为燕山晚期至喜山期的辉绿岩,坝轴线及两岸坝头的断层有数十条。文章分析了大坝基础工程地质问题的处理方法以及处理过程中存在的问题。

Manla dam is constructed on the Nianchu River that is a tributary of Yaluzhangbu River in Tibet. The dam foundation is a diabase formed in Yan Mountain later stage and Xi Mountain stage. There are several ten faults in the dam axis and abutments. The paper introduces the treatment method of the dam foundation engineering geology and some existed problems during treatment, and analyses various factors affected to treatment effect. [