Owing to the wet ground at all railway zones of ocher, construction facing severe challenges, many of the problems are universal. 由于该段铁路全部处于湿陷性黄土区，工程建设面临严峻挑战，许多都是世界性的难题。
For special emphasis, the water-bearing state of collapsible loess must be considered when dealing with the effects of earthquake action to engineering. 特别强调地震作用对工程影响必须考虑湿陷性黄土的含水状态。
