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为解决盘兴高速公路沿线路基挖方产生的大量高液限过湿土处理问题,以盘兴高速公路第三合同段的高液限土为研究对象,通过添加不同比例的胶凝材料进行颗粒分析试验、液塑限试验、击实试验和室内加州承载比(CBR)试验分析,依据不同掺量和压实度条件下各控制参数的变化规律确定最优掺量比,在最优掺量条件下,进一步分析施工控制参数,即含水率、压实度、击实功的变化规律,获得水稳定性和强度兼顾的施工参数组合,达到了预期的效果。
In order to solve the problem of handling a large number of high liquid limit overwaters caused by subgrade excavation along the Panxing Expressway, the high liquid limit soil in the third contract section of the Panxing Expressway was taken as the research object, and different proportions of cementitious materials were used for particle analysis Test, liquid-plastic limit test, compaction test and indoor California load-bearing ratio (CBR) test analysis, according to the different dosage and compaction degree under the conditions of various control parameters to determine the optimal dosage ratio, the optimal dosage conditions Under further analysis of the construction control parameters, namely the change of moisture content, compaction degree and compaction work, the combination of construction parameters with water stability and strength was obtained, and the expected result was achieved.