基于实际预压载作业的自升式平台环境载荷图谱绘制新思路  

New Approach for Environmental Load Charts of Jack-ups Considering Actual Preloading Operations

作　　者：孙承猛 林海花 张志刚 孙洪源 周立师 Chengmeng Sun;Haihua Lin;Zhigang Zhang;Hongyuan Sun;Lishi Zhou(Naval Architecture and Port Engineering College,Shandong Jiao Tong University,Weihai 264209,China;School of Ocean Engineering,Harbin Institute of Technology,Weihai 264209,China;China Merchants Jinling Shipyard(Weihai)Co.,Ltd.,Weihai 264207,China)

机构地区：[1]Naval Architecture and Port Engineering College,Shandong Jiao Tong University,Weihai 264209,China [2]School of Ocean Engineering,Harbin Institute of Technology,Weihai 264209,China [3]China Merchants Jinling Shipyard(Weihai)Co.,Ltd.,Weihai 264207,China

出　　处：《哈尔滨工程大学学报（英文版）》2024年第1期209-221,共13页Journal of Marine Science and Application

基　　金：Supported by the National Natural Science Foundation of China Youth Fund under Grant No.51909148;the Doctoral Research Initiation Fund of Shandong Jiaotong University under Grant No.BS2018001。

摘　　要：The environmental load chart is an important technical support required for the jack-up drilling platform to facilitate its adaptation to different operating waters and ensure the safety of operation.This chart is a crucial part of the platform operation manual.The chart data are closely related to external factors such as water depth,wind,wave,and current conditions of the working water,as well as to the structural characteristics of the platform itself and the number of variable loads.This study examines the platform state under extreme wind,wave,and current conditions during preloading.In addition,this study focuses on the difference between the ultimate reaction force of the pile leg during preloading and the reaction force of the pile leg without considering any environmental load before preloading.Furthermore,the relationship between the difference and the new reaction force of the pile leg caused by the combination of different environmental conditions is established to facilitate the construction of a new form of environmental load chart.The newly formed chart is flexible and simple;thus,it can be used to evaluate the environmental adaptability of the platform in the target well location and provides the preloading target demand or variable load limit according to the given environmental constraints.Moreover,the platform can perform personalized preloading operations,thereby improving its capability to cope with complex geological conditions,such as reducing punch-through risks.This condition reduces the load on jacking system devices and increases its service life.

关 键 词：JACK-UP Environmental load chart PRELOADING Geometrically nonlinear effect Punch through 

分 类 号：U674.38[交通运输工程—船舶及航道工程]