Abstract：Research purposes:In the process of the railway tunnel construction，the frequency of engineering accidents is not only very high，but also the consequences of these accidents are very serious and bring the whole society and state a huge number of economic losses and casualties． However，in the real process，the railway tunnel construction risk cannot be circumvented． How to strengthen the risk assessment of railway tunnel is an integral part of the railway tunnel，and it is currently a major issue facing the railway tunnel construction． In this study，we intended to explore a complete railway tunnel system and methods．
Research conclusions:By studying risk management theory，the construction of the railway tunnel risk and the rail tunnel risk grading standards，the conclusions were as follows: (1) Rail tunnel risk index system can make the identification of the risk of future engineering practice changetoo simple，and the basic work can save a lot of repetitive and be difficult to miss some of the factors．(2) The process of risk assessment and management of the railway tunnel and rail tunnel risk grading standards provided a direction for further research and practical application in the future．
孙 昕. 铁路隧道风险评估指标体系及方法研究[J]. 铁道工程学报, 2012, 29(9): 71-74.
SUN Xin. Research on the Methods of Rail Tunnel Risk Assessment Index. 铁道工程学报, 2012, 29(9): 71-74.
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Huo Yongcheng，Xin Shuzhen． Experimental Study on Aeolian Sand Compaction and Bearing Capacity［J］． Railway Construction，2007(9) : 49－51．
［4］ 杨文武． 沉管隧道工程技术的发展［J］． 隧道建设，2009 (4) :397－404．
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2012, Vol. 29 
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