one
General reclamation uses the method of blow filling. At the same time, another pump is used to pump the muddy water with a high sand content to the area near the coast where it needs to be filled. When the water flow goes away, the sand will remain in the reclamation area, and the repeated reclamation will occur.
two
This ground can not be used, because the water content is very high, it needs to be soaked and hardened before it can be used;
three
Pile foundation is used for the buildings in the fill area. A large number of long piles are driven into the ground until the bearing layer, and the buildings are built on pile foundation.