Abstract:Research purposes:A large water bursting happened at the entrance of the tunnel to bring a lot of disasters. The hydro-geological data and in-site observed data were analysed to find out the reasons for the water bursting and sum up the laws of the appearance of water bursting for the purposes of making the remediation schemes for design and construction of the tunnel and avoiding the construction risk.
Research conclusions:The topography junction and lithology interface between mountain watershed consisting of Silurian clastic limestone and mountain slopes consisting of Qixia and Maokou groups limestone were the catchments. The 3# underground river developed in P1q+m stratum where was rich of water with three different types of water-filled layers. They were related to 3# underground river in various degrees. Water inrush brought the water of the underground river into the tunnel. The rechanneled underground river remained the characteristics of 3# underground river, such as pipeline flow, dynamic changes of runoff quantity and precipitation-runoff relations etc. The diversion of the underground river would have a certion impact on the environment, and the silt and stones brought by the water inrush would cause some difficulties in construction, operation and maintenance of the tunnel.
徐红星;邓谊明. 野三关隧道 DK 124 + 602突水相关水文地质分析[J]. 铁道工程学报, 2010, 27(4): 29-34.
XU Hongxing, DENG Yiming. Analysis of Hydrogeology Problems Related to Water Bursting in Area of DK124+602 at Yesanguan Tunnel of Yichang-Wanzhou Railway. 铁道工程学报, 2010, 27(4): 29-34.
Yang Tianhong, Tang Chunan, Tan Zhihong, et al. Rock Damage Water Inrush Model Research Situation and Water Inrush Forecast Study Trend in Development[J]. Journal of Rock Mechanics and Engineering, 2007(2): 268-277.
Deng Yiming. Main Engineering Geology Problems Controlling Scheme Selection of Zhicheng-Wanzhou Railway Line and Its Route Selection[J]. Journal of Railway Engineering Society, 2001(2): 58-66.
Zhou Qixia. Special Geological Survey of Long Karst Tunnels on Yichang-Wanzhou Railway Line: Geological Survey Report of Ye Sanguan Tunnel[R]. Wuhan: The Fourth Railway Survey and Design Institute Group Corporation, 2002.
Xu Hongxing. Karst Hydrogeology Survey of the Water Inrush Pass at the Exit of Yesanguan Tunnel of Yichang-Wanzhou Railway[R]. Wuhan: The Fourth Railway Survey and Design Institute Group Corporation, 2008.
[ 9 ] 中国科学院地质研究所岩溶研究组. 中国岩溶研究[]. 北京:科学出版社, 1987.
Karst Institute of Geology Research Institute in Chinese Academy of Sciences. Chinese Karst Studies[M]. Beijing: Science Press. 1987.