膨胀土路基填料的土工试验方法研究

对掺石灰处理膨胀土的掺灰率，无侧限抗压强度，试样饱和对其力学性质的影响以及膨胀力等问题进行了试验研究，根据试验结果比较，提出了不同龄期的掺灰率应用不同ＥＤＴＡ耗量标准曲线的建议及用三轴仪量测膨胀力的改进方法，供公路路基土试验参考。

Test Mothed of Subgrade for Highway Filled with Swelling Soil

In this paper,the swelling of lime-treated clays is studied by test of the lime ratio,unconfined compression strength,the effect on mechanical properties, saturation of specimens, and swelling pressure. On the basis of the comparison of test results, it is suggested that the lime ratio for different ages should depend on diffeent EDTA standard consumption curves and that the swelling pressure should be measured with the triaxial cell .The suggestion can be used in the test of subgrade for highway engineering projects.