| 用于吸力式基础离心机模拟的动力加载设备(英文) | |
| 王淑云 ; 张建红 ; 鲁晓兵 ; 矫宾田 ; WANG Shu-yun ; ZHANGJian-hong ; LU Xiao-bing ; JIAO Bin-tian | |
| 2010-06-10 ; 2010-06-10 | |
| 关键词 | 吸力式桶形基础 动力加载设备 冰致振动 离心机模拟 suction bucket foundation dynamic loading device ice-induced vibration centrifuge modeling TV322 |
| 其他题名 | A Dynamic Loading Device for Suction Foundations in Centrifuge Modeling* |
| 中文摘要 | 吸力式桶形基础广泛地应用于海洋油气开发的海洋平台。在冬季,渤海冰排会对平台产生强烈的冲击,引起振动。本文介绍了一套用于土工离心机实验的动力加载设备,并介绍了该套设备在模拟吸力式桶形基础在受到等效动冰载作用下的响应的实验研究情况及实验结果。结果表明,当载荷幅值超过一个临界值时,地基上部会发生软化甚至液化。超孔隙水压从土体上部到下部,从桶形基础壁面到远处逐渐减小。在动载荷作用下,桶形基础和临近土体会发生大的沉降。桶形基础尺寸越小,动载荷响应越大。; Suction bucket foundations are widely used in the offshore platform for theexploitation of the offshore petroleum and natural gas resources.During winter seasons,icesheets formed in Bohai Bay will i mpose strong i mpact and result in strong vibration on theplatform.This paper describes a dynamic loading device developed on the geotechnicalcentrifuge and its application in modeling suction bucket foundation under the equivalent ice-induced vibrationloadings.Some experi mental results are presented.It is shownthat whentheloading amplitude is over a critical value,the sand at the upper part around the bucket softensor evenliquefies.The excess pore pressure decreases fromthe upper part to the lower part ofthe sand foundation in vertical direction while decreases from near to far away from thebucket′s side wall in the horizontal direction.Large settlements of the bucket and the sandaround the bucket occur under the horizontal dynamic loading.The dynamic responses of thebucket with smaller size are heavier.; ThisprogramissupportedbythefundofChineseOceanOilCo.andChineseAcademyofSciences"KJCX2-SW-L03-01"(40025103)andNationalNaturalScienceFund(No.10202024) |
| 语种 | 英语 ; 英语 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/59408]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 王淑云,张建红,鲁晓兵,等. 用于吸力式基础离心机模拟的动力加载设备(英文)[J],2010, 2010. |
| APA | 王淑云.,张建红.,鲁晓兵.,矫宾田.,WANG Shu-yun.,...&JIAO Bin-tian.(2010).用于吸力式基础离心机模拟的动力加载设备(英文).. |
| MLA | 王淑云,et al."用于吸力式基础离心机模拟的动力加载设备(英文)".(2010). |
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