| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure for a bag by which an injection opening can be easily formed in a work site, a method for manufacturing the bag, and a method for filling a grout material using such the bag. SOLUTION: The tubular bag 2 is formed of a woven fabric, and has a double wall 5 extending in the length direction of the peripheral wall of the tubular bag 2. The external wall 4 and the internal wall 3 of the double wall 5 have separate slits 7 and 6 extending in the peripheral direction. A grout material injecting pipe 8 is made to pass through both the slits, thereby inserting the tip of the pipe 8 into the bag. A grout material is injected into the bag through the grout material injecting pipe. This constitution can easily form the grout material injection opening in an arbitrary part of the bag, eliminates the need for special equipment in a work site, and can form the injection opening in the bag, and inject the grout material therein. COPYRIGHT: (C)2009,JPO&INPIT
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