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铁路路基基床表层作为轨道的直接基础,是路基最重要的部分。路基基床表层主要是传递和扩散上部道床传来的车辆垂直载荷以及动载荷,保持基床的长期稳定。施工时必须保证路基基床表层的工程质量,正确的施工方法是保证路基基床表层施工质量的关键。结合工程实例,在总结路基过渡段工艺性试验目的的基础上,介绍了施工前的准备工作,并通过路基过渡段施工工艺参数试验,确定了路基过渡段级配碎石填筑的各项参数,从而有效地指导了路基过渡段填筑施工。
Railway subgrade bed surface as a direct track orbit, is the most important part of the subgrade. The subgrade bed surface is mainly to transmit and spread the vertical loads and dynamic loads on the upper track bed to keep the long-term stability of the bed. The construction quality of subgrade bed surface must be ensured. The correct construction method is the key to ensure the quality of subgrade bed surface construction. On the basis of summarizing the purpose of technology test of transitional section of subgrade, the preparation work prior to construction is introduced, and through the test of construction parameters of subgrade transition section, the parameters of graded graded roadbed in subgrade transition section are determined , Thus effectively guiding the embankment transition section filling construction.