上海地区饱和软黏土的直剪试验特性研究

Study on Direct Shear Properties of Saturated Soft Clay in Shanghai Area

摘要:

上海地区饱和软黏土的剪切特性对建筑物地基的稳定性具有重要影响，在实际工程中，主要通过室内直剪试验来确定软黏土的剪切指标。试验方法普遍采用固结快剪，而快剪和慢剪试验方法较少采用，研究也不多。通过对上海典型④层软黏土分别进行快剪，固结快剪和慢剪试验，研究不同试验方法得到的软黏土的剪切指标，总结软黏土的剪切特性。

Abstract:

The shear characteristics of saturated soft clay in Shanghai have an important impact on the stability of building foundations. The indoor direct shear test is mainly used to determine the shear indexes of soft clay in the practical projects. The test method is a consolidated fast shear method generally, while the fast shear and slow shear test methods are rarely used with little study. Through the fast shear, consolidated fast shear and slow shear tests of typical ④-layer soft clay, the different test methods are studied to obtain the shear indexes of soft clay. The shear properties of soft clay are summarized.