南水北调中线河北省永年县段膨胀土处理

Expansive soil treatment in Yongnian county section of Hebei province for South-to-North water transfer mid-route project

膨胀土是一种高塑性土,具有吸水膨胀,失水收缩变形的特性,不利于其上建筑物稳定。南水北调中线河北省永年县段,对存在的膨胀土,进行防排水结合换填的方法,进行了处理,达到了预期效果。

The expansive soil is the high-plastic soil with the deformation characteristics of water swelling and water loss shrinking, which is bad for the stability of structure at the area. The existing expansive soil is treated by using the method of the waterproof and drainage combining with changing and filling in the Yongnian county section of Hebei province for South-to-North water transfer mid-route project, which achieves the anticipated effect.