“老脚印”对自升式钻井平台插桩滑移的影响研究
投稿时间:2018-01-04  修订日期:2018-01-04  点此下载全文
引用本文:刘阳,冮鹏,赵少伟,等.“老脚印”对自升式钻井平台插桩滑移的影响研究[J].钻探工程,2018,45(6):40-46.
Liu Yang,Gang Peng,Zhao Shaowei,et al. Influence of “Old Footprints” on Pile Slip of Self-elevating Drilling Platform[J]. Drilling Engineering, 2018,45(6):40-46.
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作者单位E-mail
刘阳 中海石油(中国)有限公司天津分公司 510378058@qq.com 
冮鹏* 中海石油(中国)有限公司天津分公司 510378058@qq.com 
赵少伟 中海石油中国有限公司天津分公司 天津  
王菲菲 中海油能源发展股份有限公司工程技术分公司 天津  
中文摘要:渤海海域自升式钻井平台作业频率高,在同一区块多次插桩作业情况多,为自升式平台插桩作业带来严重的滑移风险。通过建立常用的两种类型桩靴的有限元分析模型,采用模拟计算和对比分析的研究方法,对在“老脚印”不同距离位置插桩时,桩基土体的塑性破坏特性、运移规律及桩靴所受侧向滑移力进行了模拟研究,得出了在不同土质条件下,桩基土和桩靴的受力特性及规律,分析了不同位置的“老脚印“对自升式平台插桩滑移风险的影响。
中文关键词:自升式钻井平台  桩靴  桩基土  “老脚印”  有限元模型  滑移风险
 
Influence of “Old Footprints” on Pile Slip of Self-elevating Drilling Platform
Abstract:In view of the high operating frequency of self-elevating drilling platforms in Bohai sea area and many times pile plug-in operation in the same blocks, the original pile holes bring serious slip risk to pile plug-in operation for self-elevating platform. By establishing the finite element analysis model of 2 types of commonly used pile shoes and using the research methods of simulation calculation and comparative analysis, the simulation research is carried out in the plastic failure characteristics of pile foundation soil, the movement law of pile foundation soil and the lateral slip force of the pile shoes while pile plugging in the positions at different distances to the “old footprints”, the force characteristics and rules of pile foundation soil and pile shoe under different soil conditions are obtained, and the influence of the “old footprints” of different positions on the slip risk of self-elevating platform is analyzed.
keywords:self-elevating drilling platform  pile shoes  pile foundation soil  “old footprint”  finite element model  slip risk
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