ABSTRACT
The poor gradation continuity of aeolian sand makes it difficult to control the degree of compaction of the roadbed. Using the relationship between the different moisture content of aeolian sand and the maximum dry density, the construction method of water sprinkling and water sinking method is adopted to carry out the construction. This paper studies the road backfill construction technology of aeolian sand abutment in the transition section of a culvert. To study the effect of the construction technology of aeolian sand abutment backfilling, the box culvert abutment backfilling area is divided into 6 areas. The compaction degree of the aeolian sand filling in each area was inspected on-site and the settlement observation was carried out. After 15 days, the compaction degree was above 96%, reaching the maximum settlement amount. The results show that the water consumption of the sprinkling roller compaction method is much smaller than that of the water sedimentation method, and the compaction effect and settlement effect are similar to that of the water sedimentation method. The process of static pressure once and vibratory pressure on the roller can meet the requirement of a degree of compaction greater than 96% has the best economic benefits.
