黄土路基抗剪强度参数与回弹模量的研究

Study on Shear Strength Parameters and Resilient Modulus of Loess Subgrade

当前,国内对压实黄土路基的抗剪强度和回弹模量都进行了深入研究,但并未对抗剪强度和回弹模量的关系进行深入系统的研究;通过对晋南地区某高速公路路基进行现场回弹试验,并在路基上同一位置取土,重塑试样进行湿剪试验,研究增湿剪切变形量随回弹模量的变化规律以及抗剪强度参数随回弹模量E0的变化规律。

Although, at present, there are intensive study in relation to shear strength and resilient modulus of compacted loess subgrade in China, the systematic research thereof is deficient. In this paper, a field rebound test was carried out in relation to a highway subgrade in south Shanxi, then resampling in the same position for wet shear test to study the laws of both the shear deformation in humidifying process and the shear strength parameters changing with the resilient modulus E0.