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本文以成昆铁路沿线泥石流为例,研究了泥石流的形成条件、活动特征和危害作用,提出以段、型、性、期为特点的泥石流分类,并给出了初步的定性定量指标,对判识泥石流具有重要意义。文章还着重总结了铁路选线、桥隧、排导、病害处理、泥石流计算、综合整治等问题,提出了相应的设计原则,处理措施和方法,为山区铁路建设提供了有益的参考。
This paper takes the debris flow along the Chengdu-Kunming Railway as an example to study the formation, activity and hazard of the debris flow, proposes the classification of debris flow characterized by section, type, sex and period, and gives the initial qualitative and quantitative indexes. Knowledge of debris flow is of great significance. The article also summarizes the problems of railway route selection, bridge and tunnel, drainage, disease treatment, debris flow calculation and comprehensive improvement, and puts forward corresponding design principles, treatment measures and methods, which provide useful reference for mountain railway construction.