防脱护轨在城市轨道交通连续长大单坡地段的应用研究

Study on application of anti-derailment guard rail in continuous steep gradient section on transit

列车脱轨会造成重大经济损失及人员伤亡。针对乌鲁木齐市轨道交通1号线连续长大单坡的线路特点,对比分析了未安装护轨和安装护轨时横向水平力及脱轨系数。结果表明,有必要在长大坡度区段的变破点附近和长大坡度与小半径曲线重合区段设置防脱护轨。

Derailment of trains causes major economic loss and casualty. Based on the characteristics of a continuous steep gradient on Urumqi metro line 1, this paper makes comparison and analysis of transverse and cross level force and derailment coefficient under the scenarios of non- installation and installation of guard rails. The results show that it is necessary to install anti-derailment guard rails at break point and at the overlap section of steep gradient with small radius curve.