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在对常德—张家界高速公路慈利东互通段工程地质综合测试、补充勘探的基础上 ,通过对膨胀土及其改良土进行了系统的试验研究 ,如自由膨胀率、有荷膨胀量、收缩、胀缩总率、颗粒分析、压缩、抗剪强度、承载比试验 ,评价了该段膨胀土的工程特性 ,对于指导膨胀土路基的设计与施工 ,具有重要的意义
Based on the engineering geological comprehensive test and supplementary exploration of Changli-Zhangjiajie Expressway Cili-Li-Dong Interchange, systematic tests on expansive soils and their modified soils are carried out, such as free expansion, load expansion, shrinkage, Swelling and shrinking total rate, particle analysis, compression, shear strength, bearing ratio test, evaluation of the engineering properties of expansive soil in this section, for the guidance of the design and construction of expansive soil embankment, is of great significance