平陆运河航道等级论证

Demonstration on waterway classification of Pinglu Canal

航道等级的确定是航道工程建设前须重点关注并解决的问题,常规项目主要考虑腹地水运发展现状及需求趋势并依据上位规划确定,但新开发的运河航道通常规划依据较少且缺乏理论分析支撑。考虑运河与天然河流具有明显不同的特点,基于运河衔接水系的通航条件,采用保证率分析法分析航道、通航建筑物及跨河桥梁对通航的限制影响。根据运输组织方式及大型船舶变吃水运输的经济性分析,综合考虑工程技术经济性、船舶大型化发展趋势、运输通达性等因素,得出运河推荐航道等级,为运河航道项目的开发建设提供参考。结果表明,平陆运河应采用I级航道标准建设,通航5000吨级船舶。

The classification of waterway grade is a problem that needs to be paid attention to and solved before construction.Conventional projects mainly consider the current situation and trend of water transport development in hinterland,and the classification of conventional projects is determined by superior planning.However,the newly developed canal is usually lacking in planning basis and theoretical analysis.Considering that the canal and natural rivers have obvious different characteristics,we analyze the influence of channel,navigation structure and river-crossing bridges on navigation by guarantee rate method based on the navigable conditions of connecting water system.We accord to the analysis of transportation organization mode and economic variable draft transportation,technical economy,development trend of large-scale ship,transport accessibility,and obtain the classification of canal,which can provide reference for the development of the canal channel project.The results show that the classification of the Pinglu Canal should be I-class and be navigable for 5,000-ton ships.