Abstract This paper analyzes the surrounding rock deformation mechanism of a gently inclined sand and mudstone interbed and presents countermeasures regarding the support failure caused by the surrounding rock deformation of the sand and mudstone interbed of the Sifangshan Tunnel on the Lanzhou-Chongqing Railway, which can be used as a reference for projects with similar geological conditions.
Keywords ：
railway tunnel sand and mudstone interbed deformation mechanism
Abstract ：
This paper analyzes the surrounding rock deformation mechanism of a gently inclined sand and mudstone interbed and presents countermeasures regarding the support failure caused by the surrounding rock deformation of the sand and mudstone interbed of the Sifangshan Tunnel on the Lanzhou-Chongqing Railway, which can be used as a reference for projects with similar geological conditions.
Keywords ：
railway tunnel sand and mudstone interbed deformation mechanism
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2012, Vol. 49 