| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a grout material from being leaked from an end portion of a bag body even if a great force acts on the end portion such as when an injection pressure of the grout material is high, or the like. <P>SOLUTION: A natural ground reinforcing material 1 comprises a core 2, a bag body 3 of which both ends are fixed to the core 2 while inserting the core therethrough, a sleeve 12 in which an end portion edge vicinity 11 of the bag body 3 is inserted together with the core 2, an outer pressing nut 15 which is fixed to the core 2 at a position outside of the bag body 3 so as to be confronted with the sleeve, and an inner pressing nut 14 which is fixed to the core 2 at a position inside of the bag body 3 and while being abutted to the end portion of the sleeve 12. The outer pressing nut 15 is screwed with a male screw 16 formed on a circumferential surface of the core 2 outside of the bag body 3, and the end portion edge vicinity 11 of the bag body 3 inserted from an end portion of the sleeve 12 closer to a side where the bag body 3 is installed can be held between opposite-side end portion of the sleeve. <P>COPYRIGHT: (C)2013,JPO&INPIT |
