软土地基上箱筒型基础防波堤静力离心模型试验研究

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Abstract The stability and mechanism of a new bucket foundation breakwater under horizontal static load are studied with the centrifugal model tests. By applying horizontal static load on bucket foundation breakwater until ultimate limit state，the displacement of structure and pore pressure response in foundation can be obtained. Test results indicate that the displacement of structure under design load is very small；load-displacement curve has an inflexion under 2.2 times design load；when load is greater than 2.2 times design load，displacement of the structure develops fast with increasing load. Under about 3 times design load，the structure approaches the ultimate limit state，the breakwater moves toward the harbor ward side，the harbor ward base cylinder sinks while the seaward base cylinder raises，and the breakwater rotates toward the harbor ward side. In addition，the pore pressure of foundation increases in landward and decreases in seaward under horizontal static load，excess pore pressure in bucket is larger than that of outside the bucket in landward；under low load level the minus excess pore pressure in bucket is larger than that of outside the bucket in landward，while under high load level the minus excess pore pressure in bucket is smaller than that out of the bucket.

Key words： soil mechanics centrifugal model test bucket foundation breakwater soft soil foundation displacement excess pore pressure

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	Articles by authors
	JIANG Minmin1
	2
	CAI Zhengyin1
	XU Guangming1
	GU Xingwen1

Cite this article:

JIANG Minmin1,2,CAI Zhengyin1, et al. EXPERIMENTAL STUDY OF CENTRIFUGAL MODEL OF BUCKET FOUNDATION BREAKWATER ON SOFT SOIL FOUNDATION UNDER STATIC LOAD[J]. , 2010, 29(S2): 3865-3870.

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https://rockmech.whrsm.ac.cn/EN/Y2010/V29/IS2/3865

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