摘要
本文通过对静、动三轴试验的研究，探讨了重塑土在长期重复荷载下的动的应力─应交关系、动强度特性以及影响它们的主要因素，得到了累积塑性应变和循环次数的函数表达式以及临界动应力与围压、含水量等的关系，并同英国ＨｅａｔｈＤＬ的结果进行了对比．所得结果可供工程应用参考．
A series of dynmic triaxial tests and the relevant static triaxial tests on the swelling soil have been carried out. The dynamic stress -strain relationship and the dynamic strength of the swellinging soil as well as main factor affecting them are studied thoroughly. The experimental formula between the cumulative plastic strain and the number of cycles of the dynamic load is established and compared with those proposed by Heath D. L. The relationship between the dynamic threshld stress and all round pressure, static strength and water content is discussed et al.
关键词
强膨胀土
动力特性
膨胀土
变形
强度
s: the strong swelling soil, dynamic property, railway -subgrade
