Abstract The Yuanliangshan Tunnel is the key wroks for the whole Yu-Huai Railway. The complex karst hydrogeology of the Maoba Syclinic Structure controls the degree of difficulty for the tunnel design and construction. Through analysing the key to the difficult problems about the Tunnel's data,the author put forward some humble opinions for reference.
DENG Yi-ming. HUMBLE OPINIONS ABOUT SEVERAL DIFFICULT PROBLEMS OF KARST HYDROGEOLOGY IN MAOBA SYCLINIC STRUCTURE OF THE YUANLIANG-SHAN TUNNEL[J]. Journal of Railway Engineering Society, 2002, 19(1): 42-46.