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淞江古河道内地基土由饱和、呈松散—稍密状态亚砂土夹轻亚粘土、粉细砂等组成,各工点组成的地基土类型、反映在地震烈度7°时极易产生液化。产生严重液化深度主要在埋深3～10米,埋深10米以下往往仅具轻微液化。故于古河道内拟建建筑物,应重视地基土的液化判别工作,以利于地基土的处理。
The foundation soil in the ancient rivers of the Lancang River is composed of saturated, loose-slightly dense sub-sands containing light sub-clay and silty sand. The type of sub-grade soils formed at each site can be easily liquefied when reflected at an earthquake intensity of 7°. Severe liquefaction depths are mainly buried at depths of 3 to 10 meters, and buried depths of 10 meters or less are often only slightly liquefied. Therefore, in the proposed building in the ancient river, the liquefaction discrimination of the foundation soil should be emphasized in order to facilitate the treatment of the foundation soil.