高速铁路黄土隧道施工变形规律及预留变形量研究

高速铁路黄土隧道施工过程中因黄土承载能力较弱,且其本身具有湿陷性的原因,易发生隧道渗水、变形、塌方等事故,对于隧道施工造成极大的安全隐患。为了改善黄土隧道施工的不稳性现状,提高黄土隧道施工安全性控制,现对高速铁路黄土隧道施工的变形规律进行分析,并根据其分析结果对隧道施工过程中预留的变形量进行探讨。

In the process of high-speed railway loess tunnel construction,due to the weak bearing capacity of loess and its own collapsibility,accidents such as tunnel seepage,deformation and collapse are easy to occur,which caused great hidden dangers to the tunnel construction.In order to improve the instability of loess tunnel construction and improve the safety control of loess tunnel construction,the loess tunnel deformation law of high-speed railway in construction is analyzed,and the reserved deformation in the process of tunnel construction is discussed according to the analysis results.