Abstract：Research purposes:The geological conditions are complex in the area of the Jinping second level power station and there are four tunnels with 17km length，extreme burial － depth and large diameter．A simplified seepage model is established with FEM for the surrounding rock mass of tunnels in order to mainly research the seepage characteristics of the tunnel under the different conditions．
Research conclusions:The results show that the seepage characteristics is less influencd by grouting circle thickness and permeability under different conditions，and the seepage pressure of surrounding rock mass increases significantly beacause of the blocking the drainage tunnels and the auxiliary holes of the A and B lines during operation period．The results can be as the reference basis for the design and construction of Jinping deep buried tunnel for the second level power station．
崔皓东,张家发,邬爱清,朱国胜. 雅砻江锦屏二级深埋隧洞围岩渗流特性初步研究[J]. 铁道工程学报, 2011, 28(7): 83-87.
CUI Hao － dong，ZHANG Jia － fa，WU Ai － qing，ZHU Guo － sheng. Study on Seepage Characteristics of Surrounding Rock Mass of Jinping Deep Buried Tunnels for Second Level Power Station of Yalong River. 铁道工程学报, 2011, 28(7): 83-87.
Xia Zeyong，Liu Boquan，Bao Jun，etc． Diversion Tunnel Construction Related Technical Problems of Jinping Second Powerstation Deep Buried Tunnels of Yalong River［R］．Hangzhou: East Cliuia Investigation and Design Tnstitute under CHECC，2010．
Ren Xuhua，Shu Jiaqing，Shan Zhigang，etc． Research on Groundwater Transport，Influence and Crontrol in Tunnel Group of JinpingⅡ Hydropower Station During Construction［J］．Chinese Journal of Rock Mechanics and Engnnering，2009(S1) : 2891－2897．
Pan Yibin，Chu Weijiang，Fang Dunmin，etc．Stability and Supporting Lining Structure Design Research Comprehensive Report of Jinping Second Powerstation Deep Buried Tunnels of Yalong River［R］．Hangzhou: East Cliuia Investigation and Design Tnstitute under CHECC，2010．
Xiao Ming，Fu Zhihao，Ye Chao． Numerical Analysis of Influcence of Seepage from Underground Conduit Lining under high internal water pressure on slope stability ［J］． Rock and Soil Mechanics，2007(2) :302 －306．
Cui Haodong，Zhu Yueming． The Improved Procedure of Nodal Virtual Flux of Global Iteration to Solve Seepage Free Surface［J］．Journal of Wuhan University of Technology，2009(2) : 238－241．
Cui Haodong， Zhu Yueming， WU Shi － yong． Numerical Simulation for the Densely － distributed Drainage Holes in Seepage with Free Surface ［J］． Chinese Journal of Geotechnical Engineering，2008(3) : 440－445．
Zhang Jiafa，Feng Deshun，Wei Yanjun． Influential Factors of Drought in Kunming Area in 2010 and Countermeasures in the Future［J］．Yangtze River，2010 ( 19) :1－6．
Wu Jingang，Tan Zhongsheng，Huang Puming．Analytic Solution of Complex Function to Distribution of Seepage Field of Tunnel with High Water Pressure［J］．Journal of Railway Engineering Society，2010(9) : 31－34．
2011, Vol. 28 
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