By in-situ compaction test in the construction site for the blasted material with the 80.0cm thickness of placing and spreading and different compacted times, the compaction construction technology of blasted material in dam was studied and related construction parameters was suggested. The study showed that: when the watering content increased from 0.0% to 10.0%, the indexes, including average compacted settlement, porosity and dry density, of the blasted material was influenced obviously with the increasing of compaction times. But when the watering content further increased from 10.0% to 15.0%, there was no obvious change of the above indexes with the increasing of compaction times, particularly, when the watering content increased from 0.0% to 15.0%, it seemed that there was a little influence of the water content and indexed of granular with the change of compaction times. It satisfied with the design requirement with the following suggested construction technique and related parameters: when the blasted material is as the compacted materials, it is placed and spread by the step-forward technique, the thickness of placing and spreading is 80.0cm, the watering content is 5.0% or 10.0% (watering content is controlled by volumetric method), then it is compacted 10 times or 8 times according to different watering contents by the smooth drum vibratory roller with the 32 tons at the velocity of 2.8 km/h, during the compaction, the forward and backward method with lapped joint width is about 1/10 vibration wheel’s width is adopted.
