高速公路粉煤灰路基填筑技术研究

Probe into Packing Technology for Fly Ash Subgrade of Expressway

结合徐州至济宁高速公路江苏段粉煤灰路基施工实际,探讨高速公路采用粉煤灰路基填筑施工技术.通过对粉煤灰路基进行室内原材料试验和在试验段进行现场试铺及质量检测,确定了合理的灰源、粉煤灰做为路基填料应满足的技术要求及粉煤灰路基大面积施工技术参数,并提出了施工注意事项.

In line with the construction of fly-ash subgrade in Jiangsu section of Jining-Xuzhou expressway,this paper probes into the packing technology for the expressway with fly-ash subgrade.Based on the indoor raw materials test for fly-ash subgrade,the site trial paving and quality inspection on the test section,defined are the rational fly-ash sources,the satisfied technical requirements for coal ash as the subgrade stuffing and the technical parameters for extensive construction of fly-ash subgrade,and presented are the points for attention in construction.