东江下矶角枢纽船闸上引航道口门区通航水流条件试验研究  

Experimental study on navigable flow condition of upstream approach channel’s entrance area in Dongjiang River Xiajijiao hub

作　　者：彭永勤[1] 彭涛 PENG Yong-qin;PENG Tao(Chongqing Jiaotong University,Chongqing 400016,China;CCTEG Chongqing Research Institute,Chongqing 400016,China)

机构地区：[1]重庆交通大学,重庆400016 [2]中煤科工集团重庆设计研究院,重庆400016

出　　处：《水运工程》2022年第5期115-123,共9页Port & Waterway Engineering

摘　　要：针对东江下矶角枢纽坝上游1.3 km处凸嘴及右岸副坝端头挑流造成的下游右侧(靠岸侧)上引航道口门区形成回流区、横向流速和回流流速严重超标问题,建立1:100比尺的正态物理模型,对在坝上游右岸凸嘴进行开挖、缩短库区右岸副坝长度并优化副坝端头与山体的连接形式、缩短上引航道长度等优化调整方案进行比选,对上引航道口门区通航水流条件进行研究。结果表明:上述措施对改善上引航道口门区通航条件是有效的,并确定了下矶角枢纽船闸上引航道布置推荐方案。Regarding the problem that the protruding mouth 1.3 km upstream of the Dongjiang Xiajijiao pivotal dam and the tip of the secondary dam on the right bank causes a backflow area at the entrance area of the upper approach channel on the downstream right side(ashore side),the lateral velocity and the backflow velocity seriously exceed the standard,we establish a normal physical model with a scale of 1:100,compare the optimization and adjustment schemes including excavating the bulge on the right bank upstream of the dam,shortening the secondary dam on the right bank of the reservoir area,optimizing the connection form between the end of the secondary dam and the mountain,and shortening the upper approach channel,and study the navigable flow condition at the entrance area of the approach channel.The results show that above measures are effective to the improvement of the navigable condition of the entrance area of the approach channel,and the recommended scheme for the arrangement of the approach channel of Xiajijiao junction shiplock is determined.

关 键 词：上引航道 口门区 通航水流条件 开挖整治 

分 类 号：U61[交通运输工程—船舶及航道工程]