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应用准移动闭塞系统和移动闭塞系统数学模型计算了总车距、列车间隔时间和线路运能,选取制动加速度分别为-0.63、-0.75、-0.85、-0.90m·s-2进行了仿真试验,分析了高速列车运行速度作用于线路运能的规律。分析结果表明:安全车距与列车减速停车时的初始速度呈正比关系,列车间隔时间和线路运能与安全车距、列车运行速度和初始参数取值密切相关;列车间隔时间存在极小值,线路运能存在极大值;制动加速度越小,列车间隔时间越小,线路运能越大;列车间隔时间可以控制在3min以内,线路每天运能可以达到1 000列以上;准移动闭塞系统的列车间隔时间大于移动闭塞系统,线路运能低于移动闭塞系统;考虑工程应用的可行性使得准移动闭塞系统与移动闭塞系统的线路运能差距进一步扩大。
The total train distance, train interval time and line capacity were calculated by using the mathematical model of quasi-moving and occluding systems. The selected accelerations were -0.63, -0.75, -0.85 and -0.90 m · s-2, respectively Tests and analyzes the law that the running speed of high-speed train acts on the capacity of the line. The results show that the safety distance is directly proportional to the initial speed of the train when it is decelerated and stopped. The train interval time and line capacity are closely related to the safety distance, the train speed and the initial parameters. There is a minimum between trains, There is a maximum of line capacity; braking acceleration is smaller, the train interval is smaller, the greater the line capacity; train interval can be controlled within 3min, the line can reach more than 1 000 lines per day; quasi-mobile occlusion system The train time interval is greater than that of the mobile blocking system and the line capacity is lower than that of the mobile blocking system. Considering the feasibility of engineering application, the gap between the quasi-mobile blocking system and the mobile blocking system is further widened.