中国岩溶2016，Vol.35Issue(6)：681-687,7.DOI:10.11932/karst20160610
实例分析隧道建设对岩溶水的影响
Influence of tunnel construction on karst water: Case analyses
庄旭峰 1孙东1
作者信息
- 1. 中国中铁二院工程集团有限公司贵阳公司,贵阳550000
- 折叠
摘要
Abstract
Karst areas and karst water are widely present in Guizhou Province.The interaction between tunnel construction and karst water has long beena problem encountered in railway projects in Guizhou.Using the Moxiong and Yinshan tunnelsas examples,this paper attempts to address this issue.Via the interpretation of magnetotelluric data and the application of MIDAS GTS,groundwater problem and its disharmonious relationship with the tunnel are analyzed.After the construction of the Moxiong tunnel was commenced,the groundwater level droppedand did not recoveras expected in the springs at nearby residences,leading to the withering of the springs and severe water shortage in the communities.Yinshan tunnel on the other hand had experienced asevere rainstorm,as a result the karst water pressure elevated and eventually blasted one of the vertical side walls,which damaged the tunnel in a length up to 20 meters,interrupting train pass for more than 24 hours.The lessons from these examples suggest that when selecting the tunnel line in Guizhou,the boundaries of karst water systems should be clarified to avoid the areas with well-developed karst water.In the design stage,full consideration should also be taken to avoid any possible hazard from karst water.During the construction of tunnels,the karst channels encountered should be dredged rather than plugged.关键词
岩溶水/隧道建设/突泥突水/隧道病害/贵州Key words
karst water/tunnel construction/water inrush/tunnel problem/Guizhou分类
交通工程引用本文复制引用
庄旭峰,孙东..实例分析隧道建设对岩溶水的影响[J].中国岩溶,2016,35(6):681-687,7.
