青藏铁路格拉段信号工程设计

Signal Engineering Design of Golmud-Lhasa Section of Qinghai-Tibet Railway

青藏铁路格拉段信号工程设计,结合青藏高原特殊的自然环境和全新的运营管理模式,借鉴世界先进的信号技术,采用GSM-R和GPS卫星定位技术的ITCS列控联锁一体化车站控制系统,全线区间不设传统的轨道电路,而采用虚拟闭塞分区;分散自律调度集中系统作为行车调度指挥的技术手段,实现列车与调车作业的集中控制;道岔融雪分别由轨枕和道岔融雪加热变压器实施加热。格拉段信号网络基本分为三个层面,行车指挥系统单独组网并采用双网自愈结构,ITCS系统独享专用网络,微机监测和道岔融雪信息传输纳入综合环境监测公用数据传输网。

Combined with the special natural environment and new operation management mode, taking world advanced signal technology for reference, ITCS of GSM-R and GPS is adopted in the signal engineering design of Golmud-Lhasa Section of Qinghai-Tibet Railway; virtual block section is adopted without traditional track circuit. Besides, we separate Autonomic CTC as technical method of traffic control, realized centralized control of train and shunting operation; and snow-melting of turnout is heated by sleeper and turnout snow-melting heating transformer.