作　　者： ; ; ; ;

机构地区： 华南理工大学土木与交通学院

出　　处： 《交通科学与工程》 2011年第3期15-18,23,共5页

摘　　要： 通过广东省增从(增城-从化)高速公路的路床室内标准击实试验和路基96区试验段的修筑,分析废弃石屑粒径对最大干密度的影响和现场压实厚度、压实遍数及含水量对土石混填料压实度的影响.现场试验结果表明:压实度单一指标难以对大面积的施工进行控制;含水量对于控制压实度起着关键性的作用;路床填筑废弃石屑可以有效提高土基回弹模量,同时在实际工程中具有较好的经济性. Through Zeng-Cong（from Zengcheng to Conghua）expressway in Guangdong Province, road bed indoor standard compaction test and the testing road building of roadbed in 96 area are performed to analyze the relationship between abandoned stone chips~ coarse material content, the largest dry density and the influence of compaction thickness, times and water content on abandoned stone chips mixture~ s compaction. Field testing shows that degree of compaction is hard to control wide area construction. Water content is the key of controlling compaction. The soil base resilience modulus could be improved effectively by filling the roadbed with abandoned stone chips. At the same time, it could take great economic benefits to practical projects.

关 键 词： 废弃石屑 路基加固 压实度 回弹模量

领　　域： [交通运输工程]