成子河船闸闸位选择和平面布置

Location selection and layout of Chengzihe ship lock

针对成子河船闸需穿越多重水系,闸位选择受限因素多且引航道通航水流条件复杂的问题,船闸平面布置从水系连通、防洪规划、通航安全、对灌溉排涝的影响、船闸运营管理、征地拆迁和投资等多方面进行了技术经济比选。通过数模在引航道与上下游交叉河流处分别限定300、120 m 3 s最大安全通航流量条件,并采用疏浚拓挖增加过水断面和设置导流墙调整主流方向,改善了船闸引航道的通航水流条件。对复杂水系条件下的船闸闸位选择和平面布置有借鉴意义。

As the Chengzihe ship lock needs to cross multiple water systems,its location selection is limited by many factors,and the navigable flow conditions of its approach channel are complex.To deal with these problems,this paper carries out the technical and economic comparison and selection for the layout of the ship lock from many aspects,such as water system connection,flood control planning,navigation safety,the impact on irrigation and drainage,ship lock operation management,land acquisition and demolition,and investment.Through numerical simulation research,we set the maximum safe navigable flow conditions of 300 m 3 s and 120 m 3 s at the intersections of the approach channel with the upstream and downstream rivers,respectively.In addition,we use dredging and excavation to increase the overflow section and set up a diversion wall to adjust the main flow direction,which improves the navigable flow conditions of the approach channel.This study can provide a reference for the location selection and layout of ship locks under complex water system conditions.