| 摘要 |
PROBLEM TO BE SOLVED: To provide an impermeable structure which is capable of bonding an impermeable sheet comprising different materials and a protection mat using heat fusion. SOLUTION: The impermeable structure 1 for conducting the water shielding of the water-shielding target portion is constructed on the surface of the imperviousness target portion. It is provided with an impermeable sheet 2 that is laid on the surface of the imperviousness target portion and a protection mat 4 comprised of the different material from the impermeable sheet 2, which is laminated on the surface of the impermeable sheet 2 and which forms at least one sealed space 9 under the impermeable sheet 2 by bonding a predetermined portion to the impermeable sheet 2, and a protection mat made of a material different from the impermeable sheet 2. The structure is further characterized by integrally installing a bonding auxiliary material 8 including the same material as the impermeable sheet 2 to the bonded portion 5 of at least impermeable sheet 2 of the protection mat 4 and bonding the protection mat 4 to the impermeable sheet 2 via the bonding auxiliary material 8 by heat fusion. COPYRIGHT: (C)2008,JPO&INPIT
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