风暴条件下“渤海六号”钻井平台的稳定分析
Stability analysis for `Bohai No 6' drilling platform under typhoon conditions
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- DOI:
- 作者:
- 邱长林, 闫澍旺
Qiu Changlin, Yan Xiewang
- 作者单位:
- 天津大学,天津市南开区 300072
Tianjin
- 关键词:
- 海上钻井构筑物;台风;循环;作用;受力分析;粘土稳定
Offshore drilling structure;Typhoon;Circulating Action;Force analysis;clay stabilization
- 摘要:
- 本文提出-种关于海上重力结构物地基在静荷载和循环荷载联合作用下抗滑够稳定的分析方法具有使用有限元法考虑滑动面上的应力与土的动荷载效应等特点。应用上述方法计算后得出“渤海六号”钻井平台在风暴条件下的稳定性欠佳抗滑安全系数远小于1从而对该船曾经发生过的沉陷与滑移现象做了理论上的定性验证。
This paper presents an analysis method of gliding resistant stability for the foundation ns of offshore structures under the cu-action of static and circulating loads.with finite element method both the stresses un clipping plane and the effects of soil、dynamic load have been taken into consideration Calculated by above method it show、that the stability of the'13ohai No 6 drilling platform is not good enough to prevent it from sliding; under typhon Conditions for the slidingresistant coefficient is far less than 1.0.therefore. from the theoretical point of、rew.the evidence ha.s been proven why the platform settled and slided before.1996,5(5): 16-19 收稿日期：1996-5-28分类号：P715.4参考文献：
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6谢定义.土动力学.西安交通大学出版社1988