update time：2022-09-13 14:48:36
Before the rapid impact compactor is compacted, the backfill shall be filled in layers according to ...
1. Selection of tamping point for compaction operation: Before the compaction operation of the rapid impact compactor, the backfill shall be filled in layers according to the standardized requirements, and the rapid impact compaction point shall be selected and arranged after the compaction and flatness have passed the on-site inspection; The minimum distance between the edge and the back of the table is limited to 50cm; 2. Compaction operation: the rapid impact compactor is in place to set out, align the compaction rod to the point, and adjust the rapid impact compactor to the strong gear for compaction; 3. Standard of compaction times: a) The compaction of each compaction point shall not be less than 18 hammers (single point compaction capacity must reach 36kJ); B) After the number of compaction reaches 15 and 18 hammers, the compaction deposition amount shall be measured and compared and analyzed. If the relative compaction deposition difference is greater than 10mm, the number of compactions needs to be added to 3 hammers as the minimum unit, until the relative compaction deposition difference between the last three hammers and the first three hammers is less than 10mm; 4. Compaction in the entire area After the job is completed, a virtual extrusion of about 20cm thick on all surfaces is then used to level the next roadbed by mechanical pressing.