一、引航道的布置及优化研究方法(一) 引航道的布置引航道的布置如图1所示。Ⅲ线布置下游引航道包括升船机引航道、船闸引航道和汇合引航道,后两部分合称主引航道,三段长度分别为2520m、930m和1890 First, the navigation channel layout and optimization of research methods (A) the layout of the navigation channel The navigation channel layout shown in Figure 1. III. The layout of the downstream lead channel includes the lead channel of the lift ship, the navigation channel of the lock and the confluence of the navigation channel, the latter two parts are collectively referred to as the main navigation channel, and the lengths of the three sections are 2520m, 930m and 1890 respectively