Due to the limitation of river factors,mountain topography and geology,how to choose the embankment protection and retaining structure scheme of semi-filled and semi-excavated is a difficult problem in the design of the road along the river.In a urban road project in Western Hunan,the combination of over 70 m high slope and sheet-pile retaining wall is adopted in the roadbed,which solves the difficult technical problems of subgrade in special sections,and has good safety,economy and applicability.