大渡河响水岩崩堵溃洪水预测研究

Prediction of flood caused by rock-fall around Xiangshui sector of Dadu River

位于大渡河上游的响水地段，在有利的地质地貌和水文气候环境下，岩崩、坍塌十分活跃，特别是响水沟汇口处的响水岩崩，其规模达 ２.４０×１０６ｍ３，一旦活动，能直接堵塞大渡河，相应产生的堵溃洪水，会严重危害下游的中国历史名城──四川泸定和石棉。为了城市建设规划和防洪工程的需要，对该岩崩次生的特殊洪水进行了预测研究。

There are many landslides and rock-fall in the upper reach of Dadu River, where has the inducing factors on geology, landform and climate. Especially at the intersection of Xiangshui Gully and the main river, a huge rock-fall with size of 2.4×103m3 occurs. The Dadu River would be blocked if the rack falt. In addition, it will influence two cities, which are famous in the history on the lower reach of the river. For the planning of -city construction and the flood control, the research on prediction of the special flood caused by the rock-fall is neceassary.