Heat welding equipment and joining method of erosion prevention sheet of erosion prevention sheet

摘要

PROBLEM TO BE SOLVED: To provide a thermal welding device for an antierosion sheet and a joining method for the antierosion sheets for joining together end parts of adjacent antierosion sheets simply and securely.;SOLUTION: This thermal welding device 3 for joining the antierosion sheets 2 to be laid on a face of slope 12 of a dike 10 and a riverbank 14 by thermal welding has a body part 31 constituted to be moved and operated, pressing parts 32, 32 for pressing the end parts 20, 20 of the antierosion sheets 2 on one side and the other side from above across an abutting section 21 where the end parts 20 of the antierosion sheets 2 on both sides are warped up and abutted on it among the end parts 20 of adjacent antierosion sheets 2, and a hot air spraying part 33 for spraying hot air on the abutting section 21.;COPYRIGHT: (C)2008,JPO&INPIT