Model Test Study on Horizontal Static Loading of Suction Bucket Foundation under Different Scour Conditions

被引:9
|
作者
Chen, Xuguang [1 ,2 ]
Xu, Jianpeng [3 ]
Qin, Hongde [4 ]
Zhou, Lin [1 ,2 ]
Ma, Tianchi [1 ,2 ]
Liu, Xixi [1 ,2 ]
Liu, Jinzhong [3 ]
机构
[1] Shandong Prov Key Lab Ocean Engn, 238 Chung Ling Rd, Qingdao 266100, Shandong, Peoples R China
[2] Ocean Univ China, 238 Chung Ling Rd, Qingdao 266100, Shandong, Peoples R China
[3] Hohai Univ, Key Lab, Minist Educ Geomech & Embankment Engn, 1 Xikang Rd, Nanjing 210098, Jiangsu, Peoples R China
[4] Harbin Engn Univ, Sci & Technol Underwater Vehicle Lab, 145 Nantong Ave, Harbin 150001, Heilongjiang, Peoples R China
关键词
scour depth; scour width; stress history; length-diameter ratio; displacement; soil pressure; turning point; LATERALLY LOADED PILES; STRESS HISTORY; SOFT CLAY; CAPACITY; CAISSONS; WATER; SAND;
D O I
10.1520/JTE20170566
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Under a scouring action, scouring holes occur around a suction bucket foundation and have different depths and widths. The loss of soil in scouring holes causes changes in the stress history of the remaining soil. In this study, considering the stress history, scouring depth, scouring width, and length-diameter ratio, we conducted a horizontal static loading model test of a suction bucket foundation in sand. We obtained a variation law for the ultimate bearing capacity of the foundation considering three aspects: displacement change, soil pressure distribution, and turning point position. In addition, we summarized the relationship between horizontal loads and displacements at different aspect ratios. We also demonstrated the influence of scouring factors on the distribution of soil pressure and the rotation point and revealed the mechanism influencing the scouring depth, scouring width, and history of stress on the horizontal bearing capacity of a suction bucket foundation.
引用
收藏
页码:3185 / 3208
页数:24
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