Study on the technics of rolling compaction of high fill embankment of Yue-Gan superhighway

In this paper,the parameters and method of improvement of rolling compaction work efficiency arediscussed.Taking the field test and comparing compaction result of normal compaction equipment BM18T and large tonnage equipment YZTY22T,the possibility of more layer compaction and reinforce to treat rolling compaction blind, weak area of the last layer by large tonnage compaction equipments are affirmed. And the large tonnage compaction equipment can reduce the settlement after construction of high fill embankment is illustrated from theory. Based on the analysis, the additional stress caused by rolling compaction and embankment geostatic stress are analyzed. The reasons of the settlement after construction of high fill embankment are confirmed at the same time. And the technical request of increasing the degree of compaction index of fill embankment construction is also put forward.