Bearing behavior and earth pressure distribution for modified suction caissons in sand under inclined loading
Bearing behavior and earth pressure distribution for modified suction caissons in sand under inclined loading
复制标题
砂土中改良吸力沉箱倾斜荷载作用下的承载特性及土压力分布
DOI：
10.1080/1064119x.2020.1806417
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发表时间：
2020-08
影响因子：
2.2
通讯作者：
卯大炜
中科院分区：
文献类型：
--
作者：
白云（指导的博士生）;李大勇;张雨坤;卯大炜
摘要通过模型试验和数值分析，研究了倾斜荷载作用下饱和海砂中改良吸力式沉箱的承载特性和土压力沿着埋深的分布规律。讨论了外部结构尺寸、斜向加载角度和加载点位置对斜向承载性能的影响。结果表明，当加载点位于内舱外壁时，随着加载角度的增大，斜压承载力显著降低。当荷载作用点位于内墙时，被动土压力可以抵抗相当一部分倾斜荷载。在较小的加载角度下，当加载位置位于箱盖下方2 L 1/3- 3 L 1/4的内舱外壁时，MSC的斜向承载力最大。提出了不同加载角度下最佳加载点位置的确定公式，以获得最大斜向承载力。
Abstract Model tests accompanying numerical analyses on the modified suction caissons (MSCs) in saturated marine sand subjected to inclined loading were conducted to investigate the bearing behavior and earth pressure distribution along the embedded depth. Influences of external structure sizes, inclined loading angles and loading point position on the inclined bearing behavior were discussed. Results show that the inclined bearing capacity significantly decreases with increasing the loading angle when the loading point locates at the outer wall of the internal compartment. It can be also found that the passive earth pressure can resist a considerable portion of the inclined load when the loading point is located at the internal compartment wall. The maximum inclined bearing capacity of MSC is obtained when the loading position locates at the internal compartment outer wall of 2 L 1/3-3L 1/4 below the caisson lid under relatively small loading angle. An equation was proposed to determine the optimum loading point position under different loading angles to obtain the maximum inclined bearing capacity.
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影响因子：
4.3
作者：
Rao, S. Narasimha;Latha, K. Hema;Surendran, S.
通讯作者：
Surendran, S.
裙边吸力沉箱对饱和介质砂中单调侧向荷载的响应
影响因子：
1.6
作者：
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冯凌云
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影响因子：
2.2
作者：
Li Dayong;Ma Shili;Zhang Yukun
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Zhang Yukun
影响因子：
5
作者：
Nan Jia;Puyang Zhang;Yonggang Liu;H. Ding
通讯作者：
Nan Jia;Puyang Zhang;Yonggang Liu;H. Ding
DOI：
10.1002/nag.319
发表时间：
2003-12
影响因子：
4
作者：
C. Aubeny;Seung-Woon Han;J. D. Murff
通讯作者：
C. Aubeny;Seung-Woon Han;J. D. Murff