淮河入海水道二期滨海枢纽永久与临时结合的通航布置方案

Navigation layout scheme combining permanent and temporary use for Binhai Hydro-junction Phase Ⅱ of Huaihe River Sea-entering Channel

扩建滨海枢纽二期渡槽为不断航需开辟临时导航航道,根据航道网规划要求,要考虑临时船闸永久使用。根据施工导航期和永久通航期的航路组织、现状和预测船型、货运量预测、船舶安全航行等要求,确定永久与临时结合的船闸和临时连接段航道规模及通航布置方案。结合临时导航期和永久通航期的河道地形、流量和水位分析不同部位的通航水流条件。结果表明,该布置方案通航水流条件均满足要求。根据项目特点提出下一阶段需重点研究的方向,对类似永久与临时结合通航方案的布置具有借鉴意义。

In view that temporary navigation channels need to be opened up during the expansion of the navigable aqueduct of Binhai Hydro-junction Phase II for continuous navigation, following the requirements on channel network planning, we consider combining temporary navigation lock with permanent use. According to the requirements on route organization, current situation and prediction of ship type, freight volume prediction, and safe navigation of ships in the construction navigation period and permanent navigation period, we determine the scales of the navigation locks combining permanent and temporary use, the channel scale of the temporary connection section, and the navigation layout scheme. Then, we analyze the navigable flow conditions at different parts in terms of river topography, flow rate, and water level in different periods. The results show that the navigable flow conditions of the proposed layout scheme all meet the requirements. On the basis of the characteristics of the project, the key research directions in the next stage are proposed, and they can serve as a reference for the layout of similar navigation schemes combining permanent and temporary use.