Abstract:

On basis of the geological conditions and the water seepage/leakage of the lining of a section a karst tunnel located in waterrich area, this paper analyses the causes for the water seepage/leakage, raises the general concept for the treatment of the seepage/leakage water on the lining, describes the selection of the materials for the treatment of the seepage/leakage water and finally present the treatment techniques.

Key words: lining, leakage, grouting, drainage by grooving