淤泥质粉质黏土水泥土无侧限抗压强度影响因素的正交试验研究

The study of the orthotropic test on cement-soil unconfined compressive strength of muddy silty clay

结合湖南省洞庭湖区某高速公路试验段的淤泥质粉质黏土地基处理工程,利用正交试验方法对该淤泥质粉质黏土水泥土进行室内配比试验,研究水泥掺入比、水泥标号及含水率等因素对水泥土无侧限抗压强度的影响。试验结果表明:水泥标号对水泥土无侧限抗压强度的影响最大,其次是水泥掺入比,影响最小的是含水率。

For foundation treatment engineering on the muddy silty clay of a highway experimental section in Dong - ting Lake area of Hunan province, orthotropic test method was employed to conduct experiments of indoor mix- ture ratio on this cement soil material, by which the influence of cement ratios cement grade and moisture content on the unconfined compressive stress （UCS） of cement soil loas investigated. Experimental results indicate that cement grade is the biggest influencing factor on UCS. The following factor is cement ratio and the minimum fac- tor is moisture content.