长沙理工大学学报（自然科学版）2016，Vol.13Issue(2)：69-74,100,7.
复式圆端型桥墩附近船舶受力特性及通航安全区范围
Characteristic of stress on the ship and navigation safety area near double round-ended piers
摘要
Abstract
A RNG k-εturbulence model was adopted to analyze the water flow field around double round-ended piers;a stress acquisition system was used to measure the two-dimen-sional time-averaged stress condition when the ship and the piers were at different relative positions;analysis was made on the characteristic of stress on the ship at different spacings between the double piers and also on the effect of the water flow around the double piers on ship navigation.The experimental results showed that there were four obvious transverse velocity peak areas around the double piers,and the transverse velocity around the piers ex-hibited alternatively positive and negative variations when the ship passed the bridge area. As the pier spacing increased,the transverse stress on the ship evolved from adsorption force to thrust force.As the spacing between the double piers increased,the safe navigation distance in the bridge area reduced gradually.When the spacing between the double piers in-creased to that 12 times of the pier width,the safe navigation distance in the double-pier bridge area was consistent with the single-pier condition.关键词
复式桥墩/横向流速/横向受力/通航安全区/应力采集Key words
double-pier bridge/transverse velocity/transverse force/safe navigation/ex-perimental study分类
交通工程引用本文复制引用
胡旭跃,曹勇,沈小雄,陈家贵,吴剑..复式圆端型桥墩附近船舶受力特性及通航安全区范围[J].长沙理工大学学报（自然科学版）,2016,13(2):69-74,100,7.基金项目
交通部科技计划资助项目(20113280001570) （20113280001570）
