含砂低液限粉土路基冲击压实技术研究  

Study on Impact Compaction Technique for Sub-grade with Sand Silt of Low Liquid Limit

作　　者：罗红星 沈康鉴 周晓靖 李海平[2] 肖唐勃[2] 

机构地区：[1]云南新河高速公路建设指挥部,云南河口661300 [2]重庆交通科研设计院,重庆400067

出　　处：《公路交通技术》2007年第3期4-7,共4页Technology of Highway and Transport

基　　金：云南省交通科技项目(TST2005526108C)

摘　　要：针对含砂低液限粉土路用性能差,常规压实方法难以达到压实度要求等施工难题,采用冲击碾压技术进行路基补压试验,获取冲压遍数、冲压沉降量等施工控制参数。通过试验确定采用沉降与面波法进行冲压质量评价,为全线推广使用冲击压实技术提供技术保障。Targeting at the poor performance of sand silt of low liquid limit used for road construction and the difficulty in construction in meeting the requirement for compactness with ordinary compaction method, this paper studies adopting an impact wiling technique to perform a sub - grade supplemental compaction test and attains the construction control parameters such as rounds of compaction, compaction settlement volume, etc.. The settlement and surface wave methods are confirmed to be used for the quality evaluation by the aid of the test, which provide a technical guarantee for popularizing the use of impact compaction technique in all its aspects.

关 键 词：舍砂低液限粉土 冲击压实 面波 

分 类 号：U416.1[交通运输工程—道路与铁道工程]