路基在水、风、气温等自然因素的长期作用下,将发生变形和破坏,若不及时加以防治,就会引起严重的“病害”。为保证路基的稳定性,除做好路基排水外,必须做好路基防护与加固设计。一般地,防护与加固的重点是路基边坡,特别是不良地质与水文地段及沿河路基的边坡。有时,对附近可能危害路基的河流和山坡也应进行必要的防护,以保证防护加固工程能正常地工作。 Subgrade will deform and destroy under the long-term effect of natural factors such as water, wind and air temperature, which will cause serious “disease” if not controlled in time. In order to ensure the stability of roadbed, in addition to do subgrade drainage, we must do a good job of roadbed protection and reinforcement design. In general, the emphasis of protection and reinforcement is on the subgrade slope, especially in the areas of poor geology and hydrology and on the subgrade along the river. From time to time, necessary protection should be provided to nearby rivers and slopes that may endanger subgrade so as to ensure that the reinforcement works can work normally.