减小独立桩桩顶平台水平位移方法探讨  

Methods of Reducing Deck Horizontal Displacement of Single-pile Offshore Platform

作　　者：张宗峰[1] 刘锦昆[1] 邵怀海[1] 

机构地区：[1]胜利油田胜利工程设计咨询有限责任公司,山东东营257026

出　　处：《石油工程建设》2009年第2期17-18,22,共3页Petroleum Engineering Construction

摘　　要：独立桩海洋平台在波浪、海冰等极端环境荷载条件下会产生较大幅度的水平晃动,不但影响正常采油作业,甚至会引起结构的疲劳破坏。文章结合实际工程探讨了几种减小桩顶位移的方法,如采用变径桩、设置内部加强肋、减小桩的自由长度、抛石护底等。工程实施后,通过监测表明:与同水深同高度的传统独立桩相比,在同种海况下,此类独立桩水平位移减小30%以上。Considerable sway of a single-pile offshore platform caused by extreme wave or ice load is harmful to normal oil production work, even induces fatigue failure of the structure. Combining with a practical project, this paper presents several methods to reduce the deck horizontal displacement of the single-pile plat- form, such as adopting variable diameter pile, adding stiffening ribs in it, decreasing free length of the pile and setting riprap bottom protection. After the project finished, the test showed that the deck horizontal displace- ment of this single-pile platform reduced at least 30% than that of the traditional single-pile platform of an e- qual height under the same sea conditions.

关 键 词：独立桩平台 振动 水平位移 防治措施 

分 类 号：TE952[石油与天然气工程—石油机械设备]