Abstract：Research purposes:Aiming at the problems in design of loess tunnel on Zhengzhou-Xi 'an Passenger Dedicated Line, the studies are done on dividing height of deep and shallow submersion, computing method for surrounding rock pressure and design principle of secondary lining of large sectional loess tunnel for the purposes of directing the design and construction of the loess tunnel on Zhengzhou-Xia' n PassengerDedicated Line and providing the technical support to the similarworks.
Research conclusions:Based on the research on the ground cracks and surrounding rock pressure during the excavation of loess tunne,l the dividing line ofdeep and shallow submersion, computingmethod of surrounding rock pressure and designing principle ofsecondary lining of large sectional loess tunnelon Zhengzhou-Xia' n PassengerDedicated Line are presented. The dividingheightofdeep and shallow submersion of loess tunnelon Zhengzhou-Xia' n PassengerDedicated Line is40~60m, the loess tunnel load under shallow-buried condition can be calculatedwithXie Jiaxiu Formula, the loess tunnel load under deep-buried condition can be calculated with TerzaghiTheory and the thickness of secondary lining of loess tunnels under differentburied depth can be the same.
杨建民，喻 渝，谭忠盛，赵辉雄. 大断面深浅埋黄土隧道围岩压力试验研究[J]. 铁道工程学报, 2009, 26(2): 76-79.
YANG Jian-m in,YU Yu, TAN Zhong-shen, ZHAO Hui-xiong. ExperimentalResearch on the SurroundingRock Pressure ofLarge Sectional Loess Tunnel under Deep and Shallow Submersion. 铁道工程学报, 2009, 26(2): 76-79.
2009, Vol. 26 
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