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高速公路线路长,必定跨越不同的岩性地层,不同的地形地貌及水文地质条件,将遇到复杂的工程地质条件;特别是山区高速公路的地形特点,其不特定因素更多,这就需要在路线勘察过程中了解清楚沿线的不良地质作用,并查清其成因、规模,为设计提供所需的设计参数,减少设计变更,为高速公路的安全运营提供保障。本文介绍线路勘察过程中对泥石流的识别,并提供设计所需的参数及为设计提供必要的防治措施建议。
Expressway lines are long, must cross different lithology strata, different topography and hydrogeological conditions, will encounter complex engineering geological conditions; especially mountainous highway topographic features, its more specific factors, which requires Understand the unfavorable geologic functions along the line during the course of route survey, find out its cause and scale, provide the required design parameters for the design, reduce design changes, and provide guarantee for the safe operation of the expressway. This article describes the identification of debris flow during line survey and provides the parameters required for the design and provides the necessary control measures for the design.