波浪作用下沙质海床上大直径圆筒结构动态响应的实验研究  

Experiment on dynamic response of large diameter cylinder sunk into sand seabed due to wave

作　　者：李世森[1] 王建峰[1] 胡嵋[1] 秦崇仁[1] 

机构地区：[1]天津大学建筑工程学院,天津300072

出　　处：《海洋工程》2004年第4期37-42,共6页The Ocean Engineering

基　　金：国家自然科学基金资助项目(50079015);国家"九五"重点科技项目(攻关)计划资助项目(96-415-03-01-08);天津大学青年教师基金资助项目

摘　　要：通过物理模型实验,对沙质海床上沉入式大直径圆筒结构对波浪的动态响应进行了较系统的实验研究。实验中考虑了大直径圆筒、波浪和海床三者之间的耦合作用,并实时记录了大直径圆筒结构的动态响应。实验数据分析表明,大直径圆筒在波浪作用下的动态响应以大圆筒随波浪的前后摆动为主,其摆动轴心并不是固定不变的。最后通过回归分析给出了估算大直径圆筒摆动转角幅值的经验公式。　 Experiments are carried out in a wave flume to study the dynamic response of the large diameter cylinders sunk into sand seabed due to regular waves. The interactions between the cylinder, wave and seabed are considered and the dynamic response of the cylinder is recorded through the experiment data access system. The experiment indicates that the cylinders swing along with the wave and that the swing center also changes with the wave in a period. The amplitude of the swing angle can be predicted by the empirical equation.

关 键 词：大直径圆筒 沙质海床 波浪 动态响应 

分 类 号：TV139.2[水利工程—水力学及河流动力学] U65[交通运输工程—港口、海岸及近海工程]