For the reclamation and dredging of ocean or river construction, the leak of polluted water influences fishery resources and environments seriously, so it is used to maintain and protect natural environment as well as marine resources.
- Prevent the spreading of sand and fine grained soil occurred during reclamation process.
- Prevent the water pollution due to the route dredge and maintenance.
- Prevent the water pollution of areas near during the shore protection process, breakwater and harbor construction process
- Prevent damages on farm, clear water area and beach around the construction area.