what is dredging
Use human or mechanical means to carry out underwater sediment and stone
Excavation and handling are collectively referred to as dredging.
use
- Excavation or maintenance of waterways and canals (Yangtze River) The water depth needs to be more than 20 meters, otherwise the passage of ships cannot be realized, so there are often dredging work by dredging boats in rivers or seaside.
- Reservoir or lake to clean up silt In Hunan, Hubei and parts of Jiangxi, the capacity of the reservoir has been deepened, and the silt that has been cleaned up is a nutrient-rich fertilizer that provides nutrients for the surrounding farmland. There are few domestic implementations, but dredging has gradually begun to work inland.
- Artificial reclamation (Malaysian Petroleum, Latin American, UAE Stone) refineries, for There is pollution in the inland, so artificial reclamation is required. After 50 or 60 years, the refining Oil factory abandoned. Then discard the sand and gravel and return it to the sea.
- Artificial islands Amsterdam, Netherlands, Dubai. Create a new artificial island.
- Build a port Create a deep water drop that allows the boat to dock.