桩定位铲斗挖泥船的安全抬船高度  

Safe Jacking Height of Spud-Positioning Backhoe Dredger

作　　者：陈熠画 陈新权 杨启 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院高新船舶与深海开发装备协同创新中心海洋工程国家重点实验室,上海200240 [2]上海交大海洋水下工程科学研究院有限公司,上海200231

出　　处：《船舶工程》2017年第10期12-17,共6页Ship Engineering

基　　金：交通运输部长江航道维护能力建设项目资助(交规划函[2016]278号)

摘　　要：为了确定铲斗挖泥船的抬船高度,首先计算不同环境条件下铲斗挖泥船受到的环境外载荷,然后建立铲斗挖泥船力学模型,最后计算4种典型作业工况下桩腿受力。以桩腿受力为零作为上拔临界状态,计算铲斗挖泥船在不同作业工况、波高、浪向、作业方向以及使用不同容量铲斗时的最小抬船高度,得到不同波高下推荐的安全抬船高度,并总结出浪向和作业方向对最小抬船高度的影响规律。建立的抬船高度预报方法可为此类船舶的定位桩设计和作业时的抬船操作提供参考。To clarify the jacking height of backhoe dredger, the environment loads on the backhoe dredger under different environment conditions are calculated firstly. Then the forces suffered by spuds are calculated under four typical operating conditions by established mechanical model. Taking the leg stress being zero as the critical pulling-up state, the minimum jacking heights under different operating conditions, wave heights, wave directions and operating directions using different buckets are computed. The safe jacking heights under different wave heights are gained. The influencing laws between minimum jacking height and wave and operating direction are summarized. The established jacking forecasting method provides reference for the design and operation of backhoe dredger＇s positioning spuds.

关 键 词：铲斗挖泥船 定位桩 抬船高度 载荷分析 

分 类 号：U674.31[交通运输工程—船舶及航道工程]