为贯彻《公路路基设计规范》(JTG D30-2015)动力设计思想,针对贵州省三黎高速公路强~中风化板溪群板岩填料,开展了不同动应力幅值和不同干湿循环次数条件下的大型动三轴试验。试验结果表明:三黎高速公路强~中风化板岩填料的动力稳定性和干湿循环工程特性较好,是一种良好的路堤填料。另外,对软岩路堤填料的干湿循环大型动三轴试验方法进行了探讨,结果表明该试验方法还很不成熟,实际工程中开展软岩路堤现场原位测试(如E_(vd)、K_(30)、弯沉等),并寻求测试成果与动态回弹模量之间的相关性会更有意义。 In order to carry out the power design idea of ​​“code for design of highway subgrade” (JTG D30-2015), aiming at the stencil packing of strong-moderately weathered Banxi group in Sanli Expressway of Guizhou Province, the conditions of different dynamic stress amplitude and different cycles of wet and dry cycles Under the large-scale moving triaxial test. The test results show that the dynamic stability of strong ~ moderately weathered slate filler and the engineering characteristics of wet-dry cycle of Sanli Expressway are good, which is a good embankment packing. In addition, the large-scale dynamic triaxial test for wet-embankment filling of soft rock embankment is discussed. The results show that the test method is still immature. In-situ testing of soft rock embankment in the actual project (such as E_ (vd), K_ (30), deflection, etc.) and to find the correlation between test results and dynamic resilience modulus.