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.
出处
《石油工程建设》
北大核心
2002年第2期12-17,共6页
Petroleum Engineering Construction
