大断面黄土隧道沉降突变段施工处理技术

结合郑西线贺家庄隧道沉降突变段的施工处理情况,阐述了预留核心土法开挖黄土隧道施工工艺、大断面黄土隧道施工技术措施及应注意的问题,指出大断面黄土隧道施工中应加强监控量测,重视气候及地质对隧道施工的影响。

On the treatment technology of the settlement and sharp transition section of large cross-section loess tunnel

Taking the treatment of the settlement and sharp transition section of Hejiazhuang tunnel in Zheng-Xi line as example,it represents the construction craft of excavation for loess tunnel by the method of reserving core soil and the measures of the construction technology of large cross-section loess tunnel,as well as the problems that should be noted in the construction process of such project.It points out that monitoring measurement should be strengthened in the construction of large cross-section loess tu...