山区沿河公路路基水毁成因及防治措施分析

Analysis of Water Damage Causes and Prevention and Control Measures for Roadbeds along River Highways in Mountainous Areas

摘要: 受山区地形限制，沿河沿溪公路是我国山区最为常见的公路线形之一，具有路线走向明确、线形顺直平缓、材料来源方便、便于选择有利地形和避开不良地形等优点，然而受汛期、持续降雨时期引起的洪涝和河流水流量剧增的影响，沿河公路极易发生更为严重的路基水毁现象。本文通过对山区沿河公路路基水毁产生的原因及常见的类型进行分析，并梳理总结山区公路路基水毁的工程防治措施，也提出几点非工程防治建议，为沿河公路路基路面防护工程提供一定参考。

Abstract: Due to the constraints of mountainous terrain, river and stream highways are one of the most common highway alignments in mountainous areas in China, with the advantages of clear route alignment, straight and gentle alignment, convenient material sources, easy selection of favorable terrain and avoidance of adverse terrain, etc. However, due to the influence of flooding and dramatic increase in river water flow caused by flooding and continuous rainfall periods, river highways are prone to more serious roadbed water damage. This paper analyzes the causes and common types of roadbed water damage along river highways in mountainous areas, summarizes the engineering prevention and control measures for roadbed water damage in mountainous areas, and also puts forward several non-engineering prevention and control suggestions for roadbed pavement protection projects along river highways to provide some references.