FITTING STRUCTURE FOR WATER STOP SHEET FOR TUNNEL AND FITTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a fitting structure and a method that improve working efficiency by facilitating operations of spreading and covering of water stop sheets, and shortens an execution time by reducing connections between each of water stop sheets at a construction site. ;SOLUTION: A tunnel structure is provided with water stop sheets 3 mounted to a sprayed concrete surface 2 on a ground surface in a tunnel 1, and a lining concrete layer is formed with the water stop sheets 3 inside the tunnel. In this case, a plurality of water stop sheets 3 are spreaded and covered on the sprayed concrete surface 2 along a longitudinal direction of the tunnel 1 so that side edges 3a are connected mutually in a part at least divided along a direction of a surrounding wall of the tunnel 1, and at the time of spreading and covering the water stop sheets 3 are pressed and engaged or pressed and welded beforehand in succession with a Hook-and-Loop fastener 5 or a metal fastening member mounted on a side of the sprayed concrete surface 2.;COPYRIGHT: (C)1998,JPO