| 摘要 |
PURPOSE: A sheet laminate for guiding the water drainage, a tunnel water-proof structure using the same and a tunnel water-proofing method are provided to prevent the tunnel water-proof structure from being lowered or damaged by the over water pressure. CONSTITUTION: A sheet laminate for guiding the water drainage comprises an embossing sheet(122) of the synthetic resin material, and a non-woven fabric(124). The embossing sheet has a plurality of drain protrusions(122a). The embossing sheet has a plurality of drain holes(122b) passing through the embossing sheet. The drain holes contacts the non-woven fabric at the lower part or the upper part of the embossing sheet. The non-woven fabric is laminated on the top surface or the bottom surface of the embossing sheet.
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