Abstract The waterproof technique is the part and pared in tunnel. If it have not good waterproof measure, the groundwater will enter into and hurt the tunnel. Now, the most serious disaster in the underground engineering is the seepage water. Repairing the seepage water is difficult and costly. So, it is arresting from design, the design and construction should be elaborated. This paper introduces the principles of waterproof and drainage, the waterproof in the entrance of tunnel.the grouting technology,the earlier supporting,the drainage in tunnel lining,laying waterproof layer,the siructural waterproof and the waterproof in constructing sew. This paper introduces emphatically the waterproof design and construction technology in tunnel.
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Received: 25 September 1999
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