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结合子洲~靖边高速公路4个合同段低液限粉土的情况,分别采用试验和理论分析的方法,对该地区广泛存在的低液限粉土底基层稳定性能进行了系统研究。首先对低液限粉土稳定土进行了物理、力学性质试验,取得了基本的研究参数。然后通过分析当前常用的路面底基层稳定土方案,对该地区的低液限粉土提出了稳定加固方案,并分析了加固机理和影响因素。
Combined with the low liquid limit silt in the four contract sections of Zizhou-Jingbian Expressway, the stability of low-liquid-limit silt subsoil widely existed in this area was systematically studied by means of experiment and theoretical analysis respectively. First of all, the physical and mechanical properties of low-liquid-tight silt stabilized soil were tested and the basic research parameters were obtained. Then, based on the analysis of the common soil subgrade stabilized soil scheme, a steady reinforcement scheme is proposed for the low liquid limit silt in the area, and the strengthening mechanism and influencing factors are analyzed.