在编组站(驼峰)设计中,当推峰机车推送整个车列,其中第一辆车停在峰顶,此时整个车列范围内的平均坡度称为推送坡度。车列首尾所处位置的标高差,在纵列式布置的车站上,是到达场与峰顶之间的高差(图1)。它包括驼峰推送线、还包括到达场的一部分。推送坡度在编组站设计中是一个很重要的参数,它直接影响到达场、进站线路及立交桥的标高。我国《铁路工程技术规范》(以下简称《设规》)规定:“峰前到达场纵断面一般设在面向驼峰不陡于1.5‰的下坡道上……。”但在编组站设计中,很难碰到到达场——调 In the marshalling station (hump) design, when pushing the locomotive pushing the entire train, of which the first car parked at the peak, then the entire train range of the average gradient is called push slope. The altitude difference between the train head and tail position is the height difference between the arrival field and the peak on the train station arranged in the tandem (Figure 1). It includes a hump push line and also includes a part of the arrival field. Pushing slope design in the marshalling yard is a very important parameter, which directly affects the arrival field, into the line and overpass elevation. China’s “Technical Specifications for Railway Engineering” (hereinafter referred to as the “Regulations”) states: “The peak vertical arrival before the field is generally located in the hump is not steep on the slope of 1.5 ‰ downhill ....” However, in the design of marshalling yard, very Difficult to reach the arrival - tune