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| Effect of NaCl Concentration on Size Distribution and Strength of Soil |
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ZHANG Qian1, PEN Changsheng, CHEN Guangquan, XU Xingyong2
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1.College of Environmental Seience and Engimeering,Oceam University of China;2.The First Institute of Oceanographuy,SOA
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| Based on direct shear test and ultrasonic size analyzer test,shear strength and size distribution under the situation of different salinity of NaCl are studied in this paper.The experiment indicates that the shear strength changes with the variation of the salinity,and the effect is intensified by water content,It is speculated that the salinity affect the electric double layer and the thickness of water film on the surface of the particle,for the paricles get together or detach from each other.The thickness of electric double layer changes,cohesion among particles changes because of the changing of the thickness of water film. |
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