In ordering to improve the rockfil' compaction effect more better, this paper combines with the project experience and roller compaction test to analyze some factors affecting compaction of rockfills, such as rockfill characteristics and gradation, maximum grain size, construction machinery, rockfill thickness, maximum grain size, times of compaction, amount of water and so on. Summarizing the obvious factors that effect the compaction effect, it offers important references to enhance the compaction effect, improve the dam's integral stress, deformation behavior and the dam deformation. What's more, combinngs with the the influence of rockfill characteristics to compaction effect, and on the basis of considering fully with the face rockfill dam's deformation features and the soft rock materials physical and mechanical characteristics, this paper has an system analysis study on the using soft rock as the rockfill materials in project.
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