前言随着隧道施工水平的提高,长大隧道正在不断出现。为了提高长大隧道内的线路质量,简化养护作业,轨枕版、整体道床等新型轨下基础的采用更加普遍,优越性也更加突出。但是,由于水文地质、施工质量、运量增大……等等原因的影响,有的整体道床往往会出现轻重不同的病害。其病害现象多数是:中心水沟破裂翻浆冒泥, Foreword With the improvement of tunnel construction level, long tunnels are constantly emerging. In order to improve the quality of the lines in the tunnels and to simplify the maintenance work, the adoption of new rail underbeds, such as the sleeper sleeper and the integral track bed, is more prevalent and superior. However, due to the impact of hydrogeology, construction quality, traffic volume increase and so on, some whole bedways often have different severity and severity. Most of its disease phenomenon is: the center of the ditch Jianru mud,