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Risk Analysis and Optimization of Water Surface Deviation from Shafts in the Filling–Emptying System of a Mega-Scale Hydro-Floating Ship Lift
Water ( IF 3.0 ) Pub Date : 2021-05-15 , DOI: 10.3390/w13101377
Jingkai Liu , Yaan Hu , Zhonghua Li , Shu Xue

Hydro-floating ship lifts are a milestone in the field of high dam navigation. In order to ensure the running safety of a hydro-floating ship lift, the effective integration of a numerical simulation method and cloud model theory was carried out to deal with the hydrodynamic risks presented by water surface deviations from the shafts in the filling–emptying system such as a lock. In this study, the average values of water surface deviation from the shafts were 0.2, 0.22 and 0.24 m, through numerical simulation on a similar hydro-floating ship lift at the lifting heights of 80, 100 and 120 m, respectively. An increase in the lifting height causes the water surface deviation from the shafts to increase, and the hydrodynamic risk is greatly increased in the equal inertial pipeline filling–emptying system. In addition, the water surface deviations from the shafts of the equal inertial pipeline and longitudinal culvert filling–emptying system like a lock were compared. The longitudinal culvert was better at optimizing running safety in the filling–emptying system and dealing with the uncertainty of water surface deviation from the shafts. The results show that the numerical simulation method and cloud model theory can effectively control the risk of water surface deviation from the shafts and can be used to aid in decision-making for risk prevention in relation to hydro-floating ship lifts.

中文翻译:

大型水上浮船提升机排空系统中轴类水面偏离的风险分析和优化

水上浮船升降机是高坝航行领域的一个里程碑。为了确保水上浮船升降机的运行安全,对数值模拟方法和云模型理论进行了有效的整合,以解决充水系统中轴面水位偏离所带来的水动力风险。如锁。在这项研究中,通过在类似的水上漂浮船升程分别为80、100和120 m的提升高度上进行数值模拟,从竖井得出的水面偏差的平均值分别为0.2、0.22和0.24 m。提升高度的增加会导致竖井的水面偏差增加,并且在等惯性管道充水系统中,水动力风险会大大增加。此外,比较了同等惯性管道和纵向涵洞排空系统(如锁)的水面偏差。纵向涵管在优化充水系统中的运行安全性以及处理水面偏离竖井的不确定性方面表现得更好。结果表明,数值模拟方法和云模型理论可以有效地控制水面偏离竖井的风险,可用于辅助决策,以预防与水上浮船升降机有关的风险。纵向涵管在优化充水系统中的运行安全性以及处理水面偏离竖井的不确定性方面表现得更好。结果表明,数值模拟方法和云模型理论可以有效地控制水面偏离竖井的风险,可用于辅助决策,以预防与水上浮船升降机有关的风险。纵向涵管在优化充水系统中的运行安全性以及处理水面偏离竖井的不确定性方面表现得更好。结果表明,数值模拟方法和云模型理论可以有效地控制水面偏离竖井的风险,可用于辅助决策,以预防与水上浮船升降机有关的风险。
更新日期:2021-05-15
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