| 摘要: |
| 针对自升式钻井平台在插桩和拔桩过程中面临的土工问题,系统地梳理插桩和拔桩涉及的关键技术。分析插桩过程中的土工试验技术、土体破坏机理、上硬下软地层承载力和桩脚滑移问题;阐述拔桩过程中的拔桩阻力计算方法和减小拔桩阻力方法的研究进展情况。在此基础上,根据目前面临的新挑战,提出今后自升式钻井平台插拔桩技术研究的重点,并预测其发展趋势。 |
| 关键词: 自升式钻井平台 插桩 拔桩 穿刺 拔桩阻力 |
| DOI： |
| 分类号:U674.38+1 |
| 基金项目:2020 年江苏省交通发展重大专项(2020Z02) |
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| Development Status and Trends of Jack-up Drilling PlatformPile Penetration and Uplift Technology |
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1.China Ship Research and Development Academy, Beijing 100101, China;2.China Ship Research and Development Academy, Beijing 100101 , China
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| Abstract: |
| "This paper systematically reviews the key technologies involved in the pile insertion and uplift for thegeotechnical problems faced by jack up drilling platfomms. "he geotechnieal testing technology, soil failure mechanism.bearing capacity of upper hard and lower soft strata, and pile foot sliding issues met in the pile penetration process areanalyzed. The research progress of caleulation methods for pile pulling resistance and the methods for redueing pile pullingresistance during the pile uplift, prcess are elaborated, On this hasis, the focus of future researeh on the penetration anduplift technology of jack-up drilling platfomms is proposed in accordanee with the new challenges faced eurrently , and thedeveloping trend is put forward. |
| Key words: jack-up drilling platform penetration uplift puneh-through pile pulling resistance |
