海洋平台单列群桩效应的研究
Research to Single Row Crowd Stake Effects in a Marine Platform
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- DOI:
- 作者:
- 陈波1, 闫澍旺1, 陈文金2
Chen Bo1, Yan Shuwang1, Chen Wenjin2
- 作者单位:
- 1.天津大学岩土工程研究所;
2.海洋石油工程股份有限公司
- 关键词:
- 群桩;竖向承载力;超群桩效应;土塞
crowd stake;erectly bearing power;crowd stake effect;earth squeezing
- 摘要:
- 主要研究具有大直径d（2.134m）、深贯入 l（96m）、小桩距 Sa（3.507m,其桩间距 Sa与桩径 d之比仅为 1.643）,而且桩数少（仅为一列,共2根桩）等显著特点的某海洋气田平台桩基群桩的竖向承载力的超群桩效应。现有的多种相关规范,并没有涉及到本文所述特殊条件下单列群桩竖向承载力的分析计算。因此,考虑管桩内土塞的闭塞效应,采用线弹性理论、港口工程群桩承载力折减系数法、建筑桩基规范法以及凭借已有模型试验结果进行计算等几种方法来分析该群桩竖向承载力的超群桩效应。通过进一步分析,总结出分析该类群桩效应问题较为实用的方法,以期对工程实践提供参考。
Crowd stake effect of erect bearing ability for marine platform with large diameter d (2.134m) to pass through deeply into l ( 96m), little stake distance sa (3.507m, its stake span sa: stake diameter d is 1.643 only) and less stake number ( only a row, 2 stakes) and other notable characteristics have been researched. The analysis and calculation do not be concerned in existing various related specification for crowd stake effect of erect bearing ability for marine platform. Therefore, considering earth effect in stake, adopting line elasticity theory, crowd stake bearing power reducing coefficient method in port projects and building stake base standard method as well as the calculation result according to existing model testingetc., the writer carried out some kinds of methods such as calculation and analysis of this crowd stake, erect , to bear the outstanding stake effect of power. Through analyzing further, the relatively practical method of analyzing this kind of crowd stake effect is summarized for reference of engineering practice.2002,2(2): 12-16,17 收稿日期：2001-5-7分类号：P715.4作者简介：陈波,1996年毕业于西安理工大学,1999年在西安理工大学获得岩土工程专业硕士学位,现于天津大学岩土工程研究所攻读博士学位。主要从事海洋平台桩基、软土地基处理等课题研究。通讯地址:天津大学岩土工程研究所,邮编:300072参考文献：
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