三峡工程导流明渠施工通航船队航行阻力计算分析

Ship-Team Sailing Resistance Computation and Analysis on the Open Channel Navigation of Three Gorges Project

本文应用船舶阻力经验公式,对三峡工程明渠施工通航船队,进行了航行阻力计算分析,并建立了水流阻力与航速;水面坡降与相应航速降以及最大允许流速与相匹配的水面坡降等3种关系曲线。通过水力学和船模试验验证,以及对明渠典型航段的航行阻力组成和相应航速降的分析,表明计算成果与试验成果基本一致。证明本文成果可在明渠通航试验方案优化改善通航条件时参考应用,并可推广到其它内河船队的阻力估算和分析。

By using the empirical formulae of the ship resistance, the sailing resistance computation of the ship team for Three Gorges Project open channel navigation has been conducted. Three relation curves between the ship speed and the flow resistance, the water surface gradient and the sailing velocity, and the allowable maximum flow velocity and the water surface gradient are established. Through hydraulic and the ship model tests, the computed results approximate to the experimental values. It demonstrates that the results in this paper can be applied to the selection and improvement navigation condition on the test scheme of the Three Gorges Project open channel. And it might be spreaded to the resistance computation and analysis of the ship-team of the other inland waterways.