强风化软岩路基填料水洗筛分法的试验探讨

Test on the Wet Screening Method for Subgrade Fillings of Strong Weathered Soft Rock

对强风化软岩作为路基填料进行了分组鉴定,通过干筛法和水洗筛法两种方法试验结果的对比分析,表明该填料的定名存在显著差异,干筛法结果为A组填料,而水洗筛法结果为C组填料。认为填料选择应进行必要的试验鉴别,颗粒分析采用水洗筛法较为可靠,同时提出了填料控制的一些看法和建议,对类似工程的设计与施工有较好的借鉴价值和指导意义。

The paper classifies and examines the strong weathered soft rock as subgrade fillings. Through comparison of the experiment results, the study finds significant difference of the definition of the fillings. The result of dry sieving method is group A fillings and wash sieving method is group C fillings. Therefore, test is necessary for fillings selection, wash sieving method is much reliable for grain analysis. Meanwhile, the paper states out the opinions and adviees on filling control which will provide references and guideline to similar design and construction.