北京地铁4号线-大兴线增购车辆项目实施研究

Project of Vehicle Purchasing Increase for Beijing Metro Line 4 and Daxing Line

2010年,大兴线与4号线实现贯通运营后,日均客流量日益增加。虽然运营间隔从3min缩短到2min,但运能供需矛盾仍日益紧张,车辆备车也严重不足。因此增购车辆、扩建停车库的工作被提上日程。从信号系统的角度对增购车辆项目进行研究,通过分析工程的可行性,以及施工难点、施工过程,探寻先进移动闭塞系统对于缩短轨道交通发车间隔的帮助,从而提升系统运能和载客量。

In 2017, when Beijing metro Line 4 was connect- ed with Daxing Line, the daily volume of passengers in- creased rapidly. Though the minimum operation interval was shortened from 3 minutes to 2 minutes, the contradic- tion between transportation supply and demand is increas- ingly tense, and the backup vehicle is also in a situation of serious shortage. Therefore, to increase the purchase of ve- hicle,expand vehicle parking lot is placed on the agenda. Aiming to study the increase of vehicle purchase from the angle of signals system, the feasibility and difficulties in en- gineering and construction process are analyzed, the ad- vanced moving block system to shorten the headway of ur- ban rail transit is explored, in order to improve the trans- portation capacity.