波流作用时海底悬跨管道水动力试验研究  

Hydrodynamic Test and Research of Spanning Pipes under Wave Effect

作　　者：朱彤[1] 贺庆云[1] 张敬花[1] 

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024

出　　处：《水利与建筑工程学报》2013年第5期18-21,共4页Journal of Water Resources and Architectural Engineering

基　　金：国家自然科学基金重点项目(50439010)

摘　　要：利用造波机研究了波浪作用下海底悬空管道在恒定水流中的动力反应。试验中考虑了水流速度、悬空段长度、波浪高度、水深、管内是否有水等因素,得到海底悬跨管道的动力响应特性。试验结果表明:控制悬空段长度是控制海底悬跨管道动力反应的决定因素;悬跨管道上各测点的最大应变随着水深的增加而减小;管道的动力响应随着波浪高度的增大而减小;管道在管内无水时的动力反应要大于管内有水时的情况。海底悬跨管道在波流作用下的反应与受地震作用下的反应也存在差别。The wave-making machine is adopted to study the dynamic response of the spanning pipes under wave loads. In the test, the flow speed, spanning length, wave height and water depth, and whether there is water inside the pipes are considered, and the dynamic response characteristics are obtained. The test results show that controlling the suspended length is the determining factor in controlling the dynamic response of spanning pipes; the maximum strain points on spanning pipes are decreased along with the increase of water depth; the dynamic response of the pipes without water is greater than that of the pipes with water inside. The response of the spanning pipes under wave effect is different from that of the spanning pipes under earthquake action.

关 键 词：海底悬跨管道 水动力模型 实验研究 波流作用 波浪高度 

分 类 号：TM344.1[电气工程—电机]