Abstract
The artificial island physical and mechanical property of fill index has a great influence on the island stability and the development of displacement. The fill is generally composed of a lot of construction rubbish, industrial waste or the living garbage .We discuss the relationship between shear strength and coarse particle,density relations under different compactness through the experimental study in this paper. The results show that cohesion increases with the content of coarse particles,and compression modulus increases along with the increase of the density. When the content of coarse changed from small to large, compression modulus increases with the increase of coarse grain content at the beginning. When the content of coarse reached 20%, compression modulus with compaction degree increases fastest.
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