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前言公路泥石流是公路交通运输的重要自然病害之一。四川省西部(指盆地以西)地区的公路泥石流,分布广、数量多、活动频繁,危害十分严重。由于泥石流冲毁淤埋线路,毁坏、堵塞公路桥涵,造成阻车断道,妨碍交通运输的正常流通,给国民经济建设带来直接和间接的损失,是影响本地区经济发展的重要因素之一。在本区“四化”建设中,要防止泥石流对公路的严重危害,了解现有公路泥石流的分布、活动和危害情况,研究公路泥石流的整治对策是十分重要的。笔者根据几年实地考察资料,就此问题做一初步分析。一、本区公路泥石流的分布和活动特点
Preface Road debris flow is one of the most important natural diseases in road traffic and transportation. Debris flow on the highway in the west of Sichuan Province (to the west of the basin) is widespread and numerous in quantity, with frequent activities and serious harm. As the mudslides destroyed the silt buried lines, destroyed and blocked the highway bridges and culverts, resulting in the blockage of the traffic blocked and impeding the normal circulation of transportation, causing direct and indirect losses to the national economic construction, which is one of the important factors affecting the economic development in the region . In the construction of “four modernizations” in this area, it is important to prevent the serious damage to the road caused by the debris flow and understand the distribution, activities and hazards of the existing debris flow in the highway. It is very important to study the remediation measures of the highway debris flow. According to several years of fieldwork, I made a preliminary analysis on this issue. First, the distribution of this area road debris flow and activity characteristics