船闸凹岸布置上下游引航道水流条件优化  

Flow condition optimization for upstream and downstream approach channels when ship lock lies on concave bank

作　　者：李君[1] 赵建钧[1] 洪娟[2] 宣国祥[1] 王小东[1] 

机构地区：[1]南京水利科学研究院,水文水资源与水利工程科学国家重点实验室,通航建筑物建设技术交通行业重点实验室,江苏南京210029 [2]中国人民解放军理工大学野战工程学院,江苏南京210007

出　　处：《水运工程》2016年第12期101-105,131,共6页Port & Waterway Engineering

基　　金：国家重点研发计划(2016YFC0402004;2016YFC0401704;2016YFC0401906)

摘　　要：峡江枢纽是赣江高等级航道的控制性工程,坝址所在河段呈"S"形急弯形态,枢纽采用集中异岸布置,船闸布置在河道凹岸,上游引航道口门位于"S"形河段上弯道凸岸下游,下游引航道口门区位于下弯道凹岸河道主流顶冲点附近,布置不利于通航水流条件,同时该枢纽还具有低水头、大流量的特点,因而船闸上下游引航道口门区及连接段通航水流条件复杂。通过1∶110枢纽整体水工模型及自航船模试验,提出并论证了枢纽上游采用顺岸式整治方案、下游采用顺岸式整治方案结合透空式隔流导墙的综合措施,极大改善了船闸上下游引航道及其口门区通航水流条件,各项水力指标均满足了规范要求,确保过闸船舶的安全。Xiajiang hydro-junction is one of the control project of the Ganjiang high level navigation channel, in which the dam site locates at an ＂S＂ type sharp bend river section.The junction adopts the layout of structures concentrated with power house and ship lock at different banks.The lock is on the concave bank, and its entrance area of upstream approach channel lies on the downstream of in which the upstream bend convex of the ＂S＂ section and the entrance area of downstream approach channel lies on the downstream bend concave of the ＂S＂ section, which is neither favourable to the navigation flow condition. Meanwhile, the junction also has the characteristics of low water head and large discharge, all of above provide a complicated navigation flow condition. With the scale model experimentation of the overall junction and the serf-propelled ship model experimentation（ scale is 1：110）, the comprehensive optimization measures have been put forward and verified, which are the along bank control for the both the upstream and downstream and bottom-open-type guide wall for the downstream, and the measures greatly improve the flow conditions in the entrance area of the upstream and downstream approach channels, and all the hydraulic characteristics satisfy the rules, the navigation safety of ship has been confirmed.

关 键 词：船闸 凹岸布置 通航水力学 模型试验 自航船模 

分 类 号：U641.211[交通运输工程—船舶及航道工程]