浅窄内河航道船舶航行下沉量试验研究

Experimental study on navigation subsidence of ships in shallow and narrow inland waterway

浅窄航道中的船体下沉及纵倾直接影响到船舶的操纵及航行安全。目前国内外尚无关于内河船舶下沉量的具有实用价值的研究成果。通过概化物理模型,研究了内河限制性航道中1000~3000吨级船舶在不同航道宽度、水深及航速条件下船舶航行的下沉量。分析了影响下沉量的主要因素,应用经验公式与实测下沉量进行了对比分析,提出了适合内河船舶的航行下沉量计算公式,对船舶操纵及航道断面设计具有重要参考价值。

The sinkage and trim in shallow and narrow channel affect the ship's operation and navigation safety directly.At present,there is no practical research results on the sinking of inland ships at home and abroad.In this paper,a generalized physical model was used to study the sinking of 1000-3000 dwt ships in restricted inland waterway under different channel width,water depth and speed,the main factors that affect the settlement were analyzed,the empirical formula was compared with the measured settlement,and the calculation formula of the settlement suitable for inland river ships was put forward,which can be used as a reference for ship handling and channel section design.