General layout of inland navigation project is the key point to ensure the safety operation of hydro-junction. Yakou hydro-junction is located in the middle reaches of the Hanjiang River, and it is a comprehensive utilization hydro-junction with main purpose of navigation, and other functions of electric power generation, irrigation and tourism. Combining with river regime, topography and water inflow condition in the river segment of Yakou hydro-junction, the plane layout characteristics of the hydro-junction were analyzed in this paper. Based on the integrated physical model test, the disadvantages of ship lock navigation condition and discharge capacity which exist in the plane layout of design scheme were pointed out. Aiming at the disadvantages, the optimized schemes were proposed to meet the requirement. The research result may serve as reference for the other similar projects.%内河航运枢纽总体布置是枢纽安全运行的根本和关键.雅口航运枢纽位于汉江中游,是一座工程以航运为主,结合发电、兼顾灌溉、旅游等综合利用效益的枢纽工程.文章结合枢纽所在河段的河势、地形、来水条件等对枢纽平面布置特点进行了分析.依托整体物理模型试验,从船闸通航条件、枢纽泄流能力等角度剖析了设计方案平面布置存在的不足,并据此进行相应优化,提出了满足要求的工程布置优化方案,研究成果可供以后类似工程参考和借鉴.
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