膨胀土分类方法研究

膨胀土胀缩等级的确定是膨胀土地区工程建设的重要工作。对国内外现有膨胀土的分类方法进行了综述,通过对现有膨胀土分类方法的对比,指出了各种膨胀土分类方法的优缺点。同时通过室内试验,采用标准吸湿含水率对常张高速公路和南友高速公路地区的膨胀土进行了重新分类,为今后在这些地区的工程建设提供了参考数据。

Research on Classification Method of Expansive Soil

The swell-shrink grade judgment of expansive soil is a key job to engineering construction in the expansive soil area.A survey for many literatures on classification of expansive soil at home and abroad is given.Through the contrast of the current methods,the merits and shortcomings of every kind of methods are pointed out.And in the laboratory a classification of the soil in the area of Chang-Zhang Expressway and Nan-You Expressway is carried out by the method of standard moisture absorption water content of soil.All these provide more data for the engineering construction in these expansive soil area in future.