CFB粉煤灰在路基填筑中的试验与应用研究  

Research on Test and Application of CFB Fly Ash in Subgrade Filling

作　　者：郝亚松 HAO Ya-song(Hebei Guangtai Road and Bridge Engineering Group Co.Ltd.,Handan 056001,China)

机构地区：[1]河北光太路桥工程集团有限公司,河北邯郸056001

出　　处：《工程建设与设计》2024年第16期185-187,共3页Construction & Design for Engineering

摘　　要：为优化粉煤灰填筑路基工程性能,对CFB粉煤灰物理化学性能和工程应用展开研究。通过对化学成分、液塑限、压实特性和CBR值进行检测可知,CFB粉煤灰具有较低的透水性、良好的水稳定性、较高的抗剪强度和低压缩性,适宜作为路基填筑材料。并结合实际工程对CFB粉煤灰填筑路基施工技术展开讨论,施工完成后,现场压实度检测结果均不低于92%,符合路基填筑要求。In order to optimize the engineering performance of fly ash filling subgrade,the physical and chemical properties and engineering application of CFB fly ash are studied.Through the testing of chemical composition,liquid-plastic limit,compaction characteristics and CBR value,it can be seen that CFB fly ash has low water permeability,good water stability,high shear strength and low compressibility,and is suitable for roadbed filling material.Combined with the actual project,the construction technology of CFB fly ash filling subgrade is discussed.After the construction is completed,the on-site compaction degree is not less than 92%,which meets the requirements of subgrade filling.

关 键 词：路基工程 CFB粉煤灰 性能研究 施工技术 

分 类 号：U414[交通运输工程—道路与铁道工程]