Ⅶ、冲积漫流区的路基冲刷防护通过冲积漫流区的公路,在一场暴雨后,很多无固定明显沟槽的水流漫溢路面,将路基下游边坡冲出很多锯齿状缺口,对路面和路基造成很大的损害。对这类漫流区内的路基冲刷防护,应和整个排水系统的设计结合起来考虑。通常采用的方法有下面两种. Ⅶ Roadbed scouring and protection in alluvial and diffusive areas Through the highways of the alluvial and diffusive areas, after a heavy rain, many unsteady and obvious grooves overflow the pavement, divert the downstream slope of the roadbed into many serrated gaps, causing the pavement and subgrade Great damage. Subgrade erosion control in such areas should be considered in conjunction with the design of the entire drainage system. The commonly used method has the following two kinds.