The Physical and Consolidation Characteristics of Soft Clay in Nakdong River Lower Basin

摘要

From having an experimental study of physical and consolidation characteristics of soft clay in Nakdong river lower basin,we come to the conclusion as follow.Clay minerals in Nakdong river lower basin are classified into Kaolinite and Illite.Water content(Wn) is similarly distributed in a range of 50.4 to 92.8 in Noksan and 46.6 to 99.0 in Jangyu,and liquid limit(LL) of both areas appears lower than water content.In the case of compression index,the index of jangyu is a little higher than that of Noksan because Jangyu is in a range of 0.67 to 1.94 and Noksan in a range of 0.44 to 1.5.The second compression index of Jangyu in a range of 0.027 to 0.092 is also higher than Noksan in a range of 0.024 to 0.075.As a result of regression analysis,a relation between water content and compression index is linear,and between initial void ratio and compression index is shown to Cc = 0.80eo − 0.58.The ratio of Cα/Cc in a range of 0.03 to 0.08 expresses a wide range.