固结度与加载方式对软土抗剪强度的影响

Effects of Consolidation Degree and Loading Method on Soft Soil's Shear Strength

在软土地基上修筑高速公路路堤的过程中,路基土抗剪强度指标的变化与路堤填筑时间和方式密切相关,考虑其间关系可以获得更安全、经济的填筑方法。本文通过大量室内固结、直剪试验,探讨不同固结压力作用下,抗剪强度指标c、φ随固结度U的变化规律。研究一次性加载与逐级稳定加载对抗剪强度指标随固结度变化规律的影响,给出了固结度与抗剪强度指标之间的拟合公式,结果对软土路基的安全填筑具有一定的指导意义。

During filling the embankment of expressway on soft ground,the index of shear strength affected remarkably by when and how the embankment is filled.The relationship between them can be used to determine the construction method with better safety and economics effects.The 195