西安地铁临潼线的部分地铁车站与区间隧道穿越自重湿陷性黄土场地。为研究黄土地层处理的判断原则以及处理措施，分析研究地铁工程基底的受力条件以及环境变化可能性，提出地铁工程基底湿陷可能性判断原则与方法。对西安地铁临潼线的湿陷可能性进行判断，对黄土湿陷变形及结构应力进行建模计算，分析地铁工程不同连接部位处受力变形情况及结构发生应力应变特征，进而提出地铁车站、暗挖隧道和盾构隧道工程的处理措施。为该段地铁工程的设计与施工提供了科学依据，也可为其他类似工程提供参考。

Part of the Metro stations and tunnel sections on Lintong Line of Xi’an Metro cross dead weight collapsible loess. In this paper, the stressing conditions and probability of environmental change of foundation of Metro projects are analyzed and studied. And then the treating principle of and countermeasures for collapsible loess are proposed. The collapsible probability of Lintong Line of Xi’an Metro is estimated; the collapsible deformation of the loess and structural stress are calculated; the stress deformation and stressstrain characteristics of the structure at different connection points of Metro projects are analyzed. Finally, some countermeasures for collapsible loess of Metro tunnel, mined tunnel and shield tunnel are proposed. The resalts can provide reference for the design and construction of Xi’an Metro and other similar projects.