ABSTRACT
The 4.5 m high embankment of Hu-Ning railway line has been constructed in 1908. The train speed have increased up to 250 km/h at 18th, April, 2007 and demands for shortening travel times are rising. Figure 1(b) also shows the geological profile of the chosen site, the soil properties are in table 1.According to the geotechnical investigation, the site can be characterized by a 1.5 m weathered crust over a layer of soft clay with a thickness of about 13.0 m. Under these layers lies silty clay whose stiffness is more greater than the overlying soils.
