摘要
通过对某港码头沉箱浮运情况的实体观测,探讨在采用规范方法计算沉箱浮游稳定时选取相关参数应注意的问题,并验算沉箱的浮游稳定性;通过对浮运过程中沉箱构件力学特性的分析,探讨舱格间过水情况对沉箱浮游稳定的影响和浮心相对于沉箱的运动规律,提出以抗倾力矩来衡量沉箱稳定程度的具体计算方法和基于注水调平方法的沉箱注水模式。某港的工程实践验证了该分析方法的可靠性,可为类似工程提供参考。
Through solid observation of caisson floating situation in some port, some problems are discussea, which should be taken into consideration before selecting the related parameters in the process of calculating caisson floating stability by criteria. Meanwhile, caisson floating stability is checked. By analyzing mechanics characteristics of floating caisson structures, it is discussed the caisson floating stability being impacted by water flowing among cabins as well as the movement rule of buoyant centre against caisson. Then it is put forward that the grade of caisson stability can be measured by anti-overturning moment, the calculation method and caisson- filling-with-water mode based on water-fill leveling method. The reliability of above mentioned analysis is verified by some port project, which will provide the reference for the similar projects.
出处
《港工技术》
2011年第4期25-28,共4页
Port Engineering Technology
关键词
沉箱
浮游稳定
抗倾力矩
浮心
注水调平
caisson
floating stability
anti-overturning moment
buoyant centre
water-fill leveling
