一、概述梅七支线梅前段从咸铜线梅家坪工业编组站起始,经柳林、瑶曲至前河,全长70公里,是一条以运煤为主的Ⅰ级专用线。线路通过地段多系山岳区,高山深沟纵横。本区位于鄂尔多斯台地南缘,上部覆盖厚层 First, an overview of the plum seven branch before the plum from the salty copper line Mei Jiaping industrial Marshalling Station from Liulin, Yao Qu to the river, a total length of 70 km, is a coal-based grade Ⅰ special line. Line through the lot of mountains, alpine deep trench aspect. The area is located in the southern edge of the Ordos Platform, the upper cover thick