摘要
港珠澳大桥建设遇到颇多的挑战,其中6km长的海底沉管隧道是整个工程完成的关键控制节点之一,沉管管节的沉放等待、沉放过程中的水动力及运动响应是施工中必须认真考虑的。基于相似理论和相对运动概念,在拖曳水池完成沉管管节系列水动力学试验,得到沉管管节在不同风浪流载荷组合作用下的管节受力,可为港珠澳大桥海底沉管隧道的施工提供指导和建议。
Hong Kong-Zhuhai-Macao Bridge, which connects the famous tri-cities in China, will be composed of three different construction elements： a man-made peninsula, a world＇s longest and widest immersed tunnel and a cross-sea bridge. The key issue for this mega structure is the construction of immersed tube tunnel. To study the hydrodynamic behaviors of tunnel element during the period of floating or lowering to the sea bed, the scaled hydrodynamic model test has been carried out to investigate the responses of the immersed tunnel element and the tensile forces of the controlling cables, under the combined loads of the wave, current and wind based on the similarity theory. The variations of cable tensions against relative wave/current movement and immersed depth were obtained, which could be used as guidance to the construction of the immersed tunnel of Hong Kong-Zhuhai-Macao Bridge.
出处
《土木工程学报》
EI
CSCD
北大核心
2014年第3期138-144,共7页
China Civil Engineering Journal
基金
国家科技支撑计划项目(2011BAG07B01)
关键词
沉管
水动力学
试验研究
拖曳水池
Immersed tube tunnel
hydrodynamics
experimental research
towing tank
