Abstract：In October 1998，during the excavation of New Yungchung Tunnel，massive and high-pressure water gushing occurred at the south portal workface. The project has been successfully completed and the measures adopted for this long-lasting water gushing problem are reviewed and discussed herein. During the treatment，the procedures or methodologies were modified based on the newly-obtained supplemental geologic data and the results of the previous treatment steps. The hot bitumen grouting was employed to reduce the hydraulic conductivity of the surrounding formations to advance the tunnel through the water bearing zone，which is the first application of hot bitumen grouting in Taiwan. The design was modified timely and properly according to the changes in site conditions，and information sharing and cooperation in construction teams helped the completion of the mission.
傅子仁 查念祖 薛文城. 新永春隧道高壓湧水段處理過程之探討[J]. 岩石力学与工程学报, 2004, 23(S2): 5053-5061.
Fu Robert，Cha Niantsu，HsuehWencheng . Study on Treatment of HIGH-PRESSURE WATER gushing in New YungChung TUNNEL. , 2004, 23(S2): 5053-5061.
2004, Vol. 23 
