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以张承高速公路巨粒土填方路基试验段为例,介绍了山区高速公路巨粒土填方路基施工的填筑工艺和质量控制的关键技术要点,针对巨粒土的压实特征,采用孔隙率作为填石路堤的施工控制指标,并通过施工参数与压实质量检测联合控制压实质量,可以保证巨粒土填方路基的变形与稳定性满足设计和规范的要求,期望对山区高速公路巨粒土填方路堤施工的质量控制与检测起到一定的借鉴作用。
Taking the test section of huge grain fill roadbed of Zhangcheng Expressway as an example, the key technical points of filling technology and quality control of huge gravelly soil embankment in mountainous expressway are introduced. According to the compaction characteristics of giant grained soil, Porosity as a construction control index of rockfill embankment and control the compaction quality through the combination of construction parameters and compaction quality inspection to ensure the deformation and stability of the subgraded fill roadbed to meet the requirements of design and specification. Highway giant gravel earth embankment construction quality control and testing play a certain reference.