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| STUDY ON PREDICTION OF SURROUNDING ROCK PERMEABILITY FOR DEEP-LYING TUNNEL——CURRENT SITUATION AND PROSPECTXU |
| Ze-min1,YANC Li-zhong2 |
| 1.Chengdu Institute of Technology, Chengdu 610059; 2. Southwest Jiaotong University，Chengdu 610931 |
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Abstract Prediction of surrounding rock permeability in tunnel is the base of estimating the water gushing yield for deep-lying tunnel. The former relevant researches may be divided into the followings;the relations between aperture and depth and between aperture and normal stress, the relationships between hydraulic conductivity and depth and between hydraulic conductivity and normal stress. So far,these researches results have not satisfied the need of practical projects completely yet.
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Received: 20 July 1999
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1999, Vol. 16 
