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所谓逆向驼峰,就是在冬季条件下驼峰的溜车方向面对最大逆风区域,而在夏季条件下驼峰的溜车方向又多处于顺风状态下。例如,郑州北编组站新建上行驼峰调车场和丰台西编组站将新建的下行驼峰调车场就是典型的逆向驼峰,设计用的计算风速达7.6～8.9米/秒,按此风速设计的驼峰峰高竟是5.0米左右,即使难行车在绝大多数情况下也需用减速器制动,而减速器的频繁制动使车辆溜放速度显著减小,从而使驼峰效率降低。由于逆向驼峰调车场冬、夏风速差比一般驼峰调车场风速差更大,实现间隔制动和目的制动都将更为困难,因此,为了获得最佳的车辆溜放速度,对逆向驼峰调车场调速方案的选择,必须根据当地气候特征和我国现有调速方案的特点,因地制宜地进行研究分析。
The so-called reverse hump is in the winter conditions the direction of the hump rolling in the face of the largest headwind area, and in the summer conditions the hump rolling direction and more in the downwind state. For example, the newly constructed hump peak shunting yard and the Fengtai west marshalling yard at Zhengzhou North Marshalling Station are the typical reverse humps. The designed wind speed is 7.6-9.9 m / s, and the hump peak height Actually is about 5.0 meters, even if difficult to travel in most cases also need to decelerate the brake, and frequent reducer braking makes vehicles significantly slow down the speed, so that hump efficiency. Due to the reverse hump yard shunting winter and summer wind speed difference than the hump shunting yard greater wind speed difference, to achieve the interval brake and the purpose of the brake will be more difficult, therefore, in order to obtain the best vehicle speed, reverse hump The choice of yard speed regulation scheme must be studied and analyzed according to local conditions according to the local climate characteristics and the characteristics of the existing speed regulation scheme in our country.