岷江上游桃关沟泥石流特性与工程治理

Analysis Debris Flow Characteristic and Engineering Control in Taoguan Ravine of the Upper Reaches of Minjiang River

在实测调查和计算及实验论证的基础上,分析岷江上游桃关沟泥石流活动变化趋势,详细论证防治工程应考虑的问题,并提出防治对策,认为工程设计标准可按50a或100a一遇设计。

Debris flow of Taoguan Ravine is a large and one of the most representative debris flow ravines. It is famous for the historical event 'Water swashing Taoguan',and nowadays it is more noticeble as a highway debris flow because of the construction of the round uighway of Jiuzhaigou. The paper gains more clearly cogniton on debris flow characteristics based on the local investigation,experiment and some parameters computer of the debris flow. The debris flow control method is different from general control engineering. Its stress lies in available defending on road engineering an properly dealing with the debris flow entring Minjiang River. Through the measure above and virtual up-removal of the debris flow depositlonal area ralative to the road, a series of passive condition, which are induced by the deposit ional area,will be changed so emphsizing on defending of target, new structure and environmen tal consciousness are the characteristic of the debris flow control in Taoguan Ravine, and this will be an important idea in similar hazards research and engineering design.