中国岩溶2009，Vol.28Issue(2)：212-218,7.
宜万铁路野三关隧道"8.5"突水事故成因分析
Cause of the "8.5" water burst incident at Yesanguan tunnel along the Yi-Wan railway
邬立 1万军伟 2陈刚 2赵璐1
作者信息
- 1. 中国地质大学研究生院,湖北,武汉,430074
- 2. 中国地质大学环境学院,湖北,武汉,430074
- 折叠
摘要
Abstract
Yesanguan Tunnel in Yichang-Wanzhou railway had a large-scale karst water inrush accident on August 5, 2007. Based on karst hydro geologic investigation, two tracing experiments with industry salt were carried out in the two main karst depressions in the study area. The tracing experiments prove that the Shuidongping karst depression is the main water source of the "5th, August" inrush accident, and the water runs to the tunnel along fault No.18 which cut off the Zhoujiabao underground river developed in the P1m limestone layer. And the experiments also prove that the water coming from Daoziping seeps and pours into the tunnel from the west part of the inrush incident. Besides, the flow speed of the groundwater lies between the two karst stratum P1m and T1d is calculated too. The flow speed of the groundwater in karst stratum P1m is 50 m/h based on the experiment in Shuidongping. The flow speed of the groundwater in karst stratum P1m is 45.5 m/h based on the experiment in Daoziping, and the flow speed of the groundwater is 10.8 m/h in karst stratum T1d. All the above provide scientific basis for the later restoration and reconstruction as well as the anti-infiltration engineer of the Yesanguan tunnel. This paper also gives reference for design and construction of deep buried tunnel in karst area.关键词
突水事故,岩溶水示踪试验/水力联系/野三关隧道Key words
inrush accident/tracing test of karst water/hydraulic relationship/Yesanguan tunnel分类
建筑与水利引用本文复制引用
邬立,万军伟,陈刚,赵璐..宜万铁路野三关隧道"8.5"突水事故成因分析[J].中国岩溶,2009,28(2):212-218,7.
