| 单桶负压下沉过程中土体与桶形基础的相互作用 |
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| 引用本文： | 王庚荪,孔令伟,杨家岭.单桶负压下沉过程中土体与桶形基础的相互作用[J].岩土力学,2003,24(6):877-881. |
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| 作者姓名： | 王庚荪 孔令伟 杨家岭 |
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| 作者单位： | 1.中国科学院武汉岩土力学研究所 岩土力学重点实验室，湖北 武汉 430071； 2. 胜利油田管理局钻井工艺研究院 海洋工程技术研究所，山东 东营 257017 |
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| 基金项目： | 国家863计划资助项目(编号:820-10-01)。 |
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| 摘 要： | 从理论上分析了单桶负压下沉过程中土体与桶形基础的相互作用。建立了桶在下沉过程中力传递的微分方程式，求得了桶在自重下沉时所能达到的最大深度与桶体自重、所受垂直载荷、桶体几何要素、土体的力学参数以及桶-土之间的摩擦强度之间的关系。考虑了负压下沉过程中渗流的影响，确立了桶内土柱顶部所需压力与下沉深度之间的对应关系。
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| 关 键 词： | 桶形基础 负压下沉 土体与基础相互作用 土弹簧模型 |
| 收稿时间： | 2002-09-06 |
Interaction between soil mass and bucket foundation in suction sinking process of single bucket |
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| WANG Geng-sun,KONG Ling-wei,YANG Jia-ling,SUN Dong-chang,WANG Quan.Interaction between soil mass and bucket foundation in suction sinking process of single bucket[J].Rock and Soil Mechanics,2003,24(6):877-881. |
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| Authors: | WANG Geng-sun KONG Ling-wei YANG Jia-ling SUN Dong-chang WANG Quan |
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| Institution: | 1. Key Laboratory of Rock and Soil Mechanics, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. Offshore Engineering and Technology Research Division of Drilling Technology Research Institute, Shengli Petroleum Administration Bureau, Dongying 257017, China |
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| Abstract: | The interaction between the soil mass and bucket foundation during the sinking process of a single bucket driven by negative pressure is analyzed. The differential equation for the stress transfer in the sinking process of a bucket is established. The relation of the greatest sinking depth of the bucket by itself weight with the weight of bucket, the vertical load, the geometric parameters of the bucket, and the mechanical properties as well as the frictional strength between soil and bucket is obtained. The effect of percolation during the sinking process is also considered, and the sinking depth and the negative pressure required are determined. |
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| Keywords: | bucket foundation sunk by negative pressure interaction of soil mass and foundation soil spring model |
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