| 摘要: |
| 以某桥梁通航论证水工模型试验研究为基础,进行了遥控自航船模试验,对船模沿桥区不同航线航行情况下受到的水流影响进行了分析,重点分析了横流作用下的船舶受力以及桥区河段横向水流对船模航行的影响.分析结果表明,航线选择不同,船舶受水流的影响也不同;船舶受横流的影响程度与船型和静水航速等因素有关,船舶尺寸越大,受横流的影响越大;船舶静水航速越大,受横流的影响越小.横流作用下船舶的受力复杂,桥区河段应该合理规划航线以减小横流对船舶航行的影响,保证桥区通航安全. |
| 关键词: 桥区河段 航道等级 横流 船模试验 水工模型试验 |
| DOI： |
| 分类号:U661.73 TV135.4 |
| 基金项目: |
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| Influence of cross current on ship in bridge navigable waters |
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LIU Xiao-ping,LI Ming,FANG Song-sen,LIN Ji-da
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(School of Hydraulic Engineering,Changsha University of Science & Technology,Changsha 410076,China)
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| Abstract: |
| On the basis of the hydraulic model tests of a bridge′s navigation conditions,the tests of a remote-control self-propelled model ship are carried out.The influences of current under different selected routes on ship navigation are analyzed and the analysis focuses on the forces on ship under the cross current effect and the influences of the cross current on ship navigation.Analysis results indicate that the different selected routes produce different influences of current on ship;the influence intensity of the cross current on ship related with ship is size and hydrostatic velocity.Larger the size of the ship,the greater influence by the cross current;the greater the hydrostatic velocity,the smaller the influence by the cross current.By action of the cross current,the forces on ship are complex.In bridge navigable waters,we should have a rational planning of routes to reduce the influence of the cross current on the ship,so as to ensure the safe navigation in bridge waters. |
| Key words: bridge navigable waters class of waterway cross current ship model tests hydraulic model test |
