WATER IMPERVIOUS BOARD, JOINTING STRUCTURE OF WATER IMPERVIOUS BOARD, AND CONSTRUCTION METHOD OF WATER IMPERVIOUS WALL

摘要

PROBLEM TO BE SOLVED: To provide a water impervious board whose joining part is provided with an improved water impervious property, the jointing structure of the water impervious board, and a construction method for a water impervious wall. SOLUTION: The water impervious board is provided with a male and a female type fitting parts in both sides of which at least one fitting part is surrounded with a protection bag to be filled with a water impervious material. The jointing structure of the water impervious board is composed by surrounding a fitting part of the water impervious board with a protection bag, filling the protection bad with the water impervious material, opening a part of the protection bag, inserting a fitting part of another adjacent water impervious board into the protection bag through the opening, and joining the fitting parts in the water impervious material. The water impervious boards are constructed by surrounding a fitting part with the protection bag, filling the protection bag with a liquid-state water impervious material to be flexible after curing, lowering a second water impervious board with opening means for opening the protection bag of the first water impervious board by the opening means, inserting the joining part of the second water impervious board into the protection bag through the opening, and jointing the fitting parts in the water impervious material. COPYRIGHT: (C)2004,JPO