深水航道施工船舶间靠泊撞击力研究与取值分析

Value Analysis and Research of Percussive Force Caused by Engineering Ships Berthing between Ships in Deep-water Channel

为了能够分析航道中带缆工程船舶间靠泊时产生的柔性撞击力影响,提前采取措施减小水中工程船舶靠泊的影响尤为重要。本文对国内外学者发表的相关文献及国外相关的规范进行了研究,结合实际情况推导了带缆船舶靠泊时的撞击力公式,并推荐了适用于长江南京以下12.5 m二期工程工程船舶撞击力计算公式。通过现场实际条件计算,结合分析研究结果,得出了的主要影响撞击力的因素,并提出了减小撞击力的措施,从而为工程施工提出了限制条件,可为类似工程借鉴应用。

In order to analyze the flexible percussive force caused by the engineering ships mooring between ships in channel, it is very important to take measures to reduce the berthing influence of engineering ships. Relevant standards and documentation published by Chinese and foreign scholars have been studied, which deduces the percussive force formula of the mooring ships based on actual situation. In addition, a suitable percussive force formula of engineering ships is suggested for phase II 12.5 m deep-water channel project at the lower reach of the Yangtze River from Nanjing. Major factors which affect percussive force are obtained through the calculation of site conditions combined with the analysis results, and the measures to reduce the percussive force are put forward. Some restrictive conditions apply to the project construction and serves as references for similar project.