Influence Factors of Scour Damage of Roadbed Slopes in Saline Soil Regions
Understanding the influence of water flow characteristics,slope structure and soil condition factors on the degree of slope scour and the form of damage is a prerequisite for engineering design and construction protection in saline soil areas to provide a scien-tific basis.This paper adopts the indoor test method to simulate the slope scour engineering of saline soil roadbed.The results show that:the scouring of water causes obvious changes in the roadbed slope,the foot of the slope is first affected by the water flow,and its dynamic process is characterized as water soaking and scouring-the formation of the amalgamated trough-the upper part of the slope soil falls-the scouring depth range;with the increase of the flow rate and the depth of the water,the foot of the slope scouring increa-ses,and the influence of the slope ratio is just the opposite;in addition to the changes in the angle of scouring changes the location of the maximum scouring depth;Compared with NaCl saline soil roadbed slopes,the increase of Na2 SO4 saline soil salt amount,the scour extent and the maximum scour depth at the foot of the slope appeared to show the opposite trend of decreasing.
万方数据
维普
