西安地铁勘察工作重点及难点的探讨摘要西安市地处覆盖广、厚度大的黄土地区，且文物古迹众多，城区环境复杂，在加快地铁时会面临很多问题。如何有效地利用综合勘察手段，查明地铁沿线的工程地质和水文地质条件，对指导地铁施工，规避安全风险、保证施工质量，具有十分重要的意义。关键词 西安地铁；黄土地区；地裂缝；饱和软黄土；洞穴；文物古迹；重要建（构）筑物； 勘察abstract: xian is located in the loess region, and many cultural relics, the complex urban environment, there are many problems will be faced when the subway speed up. how to use the comprehensive investigation; identify the engineering geological and hydrogeological conditions along the mtr. it has great significance
