Geotechnical properties of oceanic sediments in polymetallic nodules belts

Geotechnical data obtained from the polymetallic nodules investigation in 1994,in combination with the historical data concerned,are analyzed comprehensively to study sediment types,geotechnical properties,soil strength and so on,in order to provide bases for design and construction of engineering facilities and the equipments required for the polymetallic nodules nuning in the future.