| 摘要 |
PROBLEM TO BE SOLVED: To provide a joining structure of an impervious sheet having a follow-up capability to a laid ground surface while securing the impervious performance and the shearing strength of a joining part when the impervious sheet is joined with fasteners such as bolts. SOLUTION: An intermediate water cutoff band member 15 is disposed between impervious sheets 1, 2 to be joined to each other at the overlapped portion. Upper and lower water cutoff band members 16, 17 are disposed on upper side of the impervious sheet 1 at the uppermost part and on the lower side of the impervious sheet 2 at the lowermost part, respectively. Flexible retaining plates 20, 21 are placed on the upper and lower sides of these members, respectively. A large number of fastening flat plates 5, 8 at the upper and lower parts are placed on the outer surfaces of the upper and lower flexible retaining plates at intervals in the longitudinal direction of the retaining plates, respectively. The upper and lower fastening flat plates are fastened to each other with bolts 6 and nuts 10 to join both impervious sheets 1, 2 to each other. Reinforcement wires 22, 23 are so disposed on the band-like water cut-off members at the upper surface side, the lower surface side, and the intermediate part as to fasten the large number of bolts 6 arranged parallel to each other in the longitudinal direction of the overlapped portion. COPYRIGHT: (C)2009,JPO&INPIT
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