1.Constructing cofferdam
Construct cofferdams in two sections of the river construction section to close the river construction section and disconnect it from the peripheral water sources.
2.Drainage
Continuous pumping and draining with sump pumps and submersible pumps to dry up all the water in the riverbed and form a relatively dry construction surface.
3.Dredging construction
According to the real conditions, the river is dredged by hydraulic flushing and dredging method or dry dredging method.
4. Mud transport or transfer
For the hydraulic dredging method, it is necessary to lay 8" hard nylon pipe for mud pump, which is pumped through the mud pump and transported to the mud pond through the pipe relay. If the dry dredging method is used, the mud, soil or garbage, reed roots, weeds, etc. need to be transported out by dump truck, especially to avoid spillage and environmental pollution.
