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采用模型试验方法,对不同颗粒级配、不同含水量软岩路基在不同竖向准静荷载作用下的沉降和应力的分布规律进行了研究,得出了一定的颗粒级配与含水量软岩填筑的路堤,通过压实可以满足路基设计规范技术要求,并通过两种填料级配和含水量情况下的填筑路堤进行较高荷载试验研究,分析了其变形破坏特征。研究成果可充分利用铁路沿线软岩资源、节省工程投资、少占耕地农田、保护环境,社会和经济同时受益。
Using the model test method, the distribution regularities of settlement and stress under different vertical quasi-static loads of soft rock subgrade with different particle sizes and different water contents were studied, and the relationship between the particle size distribution and water content of soft rock The filled embankment can meet the technical requirements of subgrade design specifications by compaction and carry out higher load test and study on the filling embankment with two kinds of packing gradation and water content, and analyze the deformation and failure characteristics. The research results can make full use of the soft rock resources along the railway, save project investment, occupy less farmland, protect the environment, and benefit both society and economy.