郑西客运专线渑灵段主要工程地质问题及对策

郑州至西安客运专线是世界上第一条在黄土地区修建的高标准无碴轨道客运专线。其中渑池至灵宝段位于河南省三门峡地区，为郑西客运专线越岭段，地形起伏大，沿线存在煤矿采空区、黄土洞穴、顺层、滑坡、错落、黄土冲沟以及湿陷性黄土等不良工程地质问题。通过综合勘察手段，查明了其分布范围、特征，并提出了对策措施。

Main Engineering Geological Problems and Countermeasures for Yingchi-Lingbao Section in Zhengzhou-Xi'an Passenger Dedicated Line

Zhengzhou-Xi＇an Passenger Dedicated Line is the first high standard ballastless track passenger dedicated line built in loess area in the world.Thereof Yingchi-Lingbao Section located in Sanmenxia area of Henan Province,is the watershed section of Zhengzhou-Xi＇an Passenger Dedicated Line with large topographicrelief.There are unfavorable engineering geological conditions such as coal mined-out area,loess cavity,bedding,landslide,fault,loess gully and collapsible loess along the line.Through comprehensive investigation,its distribution range and characteristics have been found out,and countermeasures have been put forward.