丰台西站上行场驼峰改造方案的探讨

Study of Upgrading Plan of Hump in Up Direction Yard of Fengtai West Station

丰西站上行场驼峰过高，减速器制动力不足，调车场成锅底形，造成钩车回溜，影响安全。改造办法是：抬高第三制动位标高，以降低峰高，使调车场成顺坡；第一、二制动位由７十７节改为８＋８节，以增加制动能高；减速器大修周期按３５万次进行，以保持正常的制动。

The hump of up direction yard of the fengtai West Station has a high grade. The shunting yard has a shape of pot bottom, which causes the unsafe reverse skating of cars. The upgradign plan is like the following: (1) Raise the elevation of the third braking point, so as to lower the hump and make the shunting yard go along the grade; (2) The retarders atthe first and second braking point are changed from 7+ 7 to 8 + 8, so as to increase the braking force; (3)Change the period of retarder overhaul from one year to 350,000 time of car pass, in order to guarantee thenormal braking force.