中文摘要：

我国重载铁路隧道基底病害问题突出,已严重影响线路行车安全。本文采用地质雷达法和高密度电法对朔黄铁路17座隧道的基底结构病害情况进行无损检测。检测结果表明：重车线侧基底病害比其他区域严重;基底结构破损最为常见,基底不密实次之,基底下沉也时有发生;围岩级别越差,基底混凝土厚度不足和基底不密实的情况越严重。

英文摘要：

The problemof heavy haul railway tunnel defect is extremely prominent,seriously affecting the traffic safety of railway lines.In this paper,the geological radar method and high density resistivity are used to detect defects of 17 tunnel base structures on Shuozhou-Huanghuagang railway.Test results showthat the defect of the base at the side of heavy vehicle line is higher than that elsewhere.The most common tunnel defect is the damage of the base structure,and the next is the uncompacted surrounding rock beneath base structure.Foundation subsidence occurs sometimes.The higher the surrounding rock classification is,the more serious the situations ofinsufficient concrete thickness and uncompacted surrounding rock are.