风光枢纽扩建船闸上游口门区通航水流条件试验研究  

Experimental research on navigation flow condition in upstream entrance area of Fengguang hydro-junction s expanded locks

作　　者：王建平 刘超 张世宝[3] 谭智天 WANG Jian-ping;LIU Chao;ZHANG Shi-bao;TAN Zhi-tian(Pearl River Hydraulic Research Institute of Pearl River,Guangzhou 510611,China;Beijing Research Institute of Survey and Design of China Electric Power Construction,Beijing 100024,China;North China University of Water Resources and Electric Power,Zhengzhou 450046,China)

机构地区：[1]珠江水利委员会珠江水利科学研究院,广东广州510611 [2]中国电建北京勘测设计研究院,北京100024 [3]华北水利水电大学,河南郑州450046

出　　处：《水运工程》2021年第1期156-161,共6页Port & Waterway Engineering

摘　　要：口门区水流条件的好坏直接影响航运的安全。针对风光枢纽扩建船闸上游口门区及连接段横向流速大、水流条件差等问题,开展风光枢纽段模型试验,将上游口门区导航墙长度缩短40m,将导流墩间距调整至5m,数量由4个增加到7个,最下游导流墩末端与导航墙的间距为7m。试验表明:导航墙缩短使得口门区距离上游河道弯断的距离增加,导流墩间距缩小使墩间透水量减少,水流条件明显改善,满足规范要求。船模航行试验表明最大通航流量Q10%=6077m^3/s,船模可以安全平稳地通过船闸,操纵参数满足规范要求。The quality of the flow conditions in the entrance area directly affects the safety of navigation.In view of the problems such as the large transverse velocity and the poor flow conditions in the entrance area and the connecting section of the upstream of Fengguang hydro-junction's expanded locks,we carry out the model experiment of Fengguang hydro-junction,based on which,we shorten the length of the navigation wall in the entrance area of the upstream by 40 m,adjust the spacing of diversion piers to 5 m,and increase the number from 4 to 7,and the distance between the end of the downstream diversion pier and the navigation wall is 7 m.The test results show that after the navigation wall is shortened,the distance between the entrance area and the upstream river bend increases,and after the distance between the diversion piers reduces,the water permeability between the piers decreases,thus water flow condition is obviously improved and meets the requirements of the code.The ship model navigation test shows that the maximum navigable flow is Q10%=6077 m^3/s,the ship model can pass through the lock safely and stably,and the control parameters meet the requirements of the specification.

关 键 词：口门区 引航道 通航水流条件 模型试验 风光枢纽 

分 类 号：U612.1[交通运输工程—船舶及航道工程]