If dam stacked by coarse waste is flattened automatically by bulldozer at small height, its density and consolidation will be raised and its stability will be strengthened.

• 堆筑堤坝材料采用粗颗粒的物料,并且采用小段高台阶排土,排土设备自动碾压,提高了堆筑堤坝体的密实度及固结度,以及母坝的稳定性。