软土直剪测试及强度的讨论

Discussion on Direct Shear Test of Soft Soil & Its Strength

软土一般是在静水或缓慢的流水环境中沉积,再经长期生物化学作用形成的粘性土。珠江口及粤东沿海地区广泛分布着软土层,通过对该地区多个工程的软土层进行大量的直剪试验,发现存在一些异常现象。根据直剪试验,对这些异常现象进行分析和讨论。

Soft soil will generally have deposited under the condition of still water or slow flowing water and formed the clay soil after a long time bio chemical action. Soft soil layer is widely distributed in Pearl River Estuary and the East Coasts of Guangdong. It is found that there exist some abnormal phenomena through large amount of direct shear test for the soft soil layer of several engineerings works in the area. The analysis and discussion on the abnormal phenomena are given.