| 摘要 |
PROBLEM TO BE SOLVED: To provide an impervious sheet structure which is a low cost when it is installed in water and has high imperviousness notwithstanding the profile of the ground surface to be installed. SOLUTION: The impervious sheets 4a, 4b bound with a fastener 9a at the step (1) is installed on the ground surface 6 at the step (2). The molds 11a, 11b are installed on the edge of the impervious sheet 4a and the molds 11c, 11d are installed on the edge of the impervious sheet 4b. The material of the mold 7a having fluidity is charged in the molds 11a, 11b at the step (4). Similarly, the material of the mold 7b is charged in the molds 11c, 11d. Then, each mold 11a, 11b, 11c, 11d is removed leaving the molds 7a, 7b after curing at the step (5). Finally, the impervious material of time curable type having initial fluidity is cast between the mold 7a and mold 7b to form the impervious structure. COPYRIGHT: (C)2007,JPO&INPIT
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