| 摘要 |
A ground reinforcement material is provided to perform construction work simply, economically and faithfully. A ground reinforcement material(100) comprises a reinforcing bar(110) provided to be inserted to an excavation hole, a hollow bar(120) provided with a hollow in the longitudinal direction to be connected with one end of the reinforcing bar and inserted to the excavation hole, a gap in the internal circumferential surface contacted with the external circumferential surface of the reinforcing bar to fill up the excavation hole with filler, and a screw thread on the lower part of the external circumferential surface, and an external packer(130) surrounding the external circumferential surface of the first screw thread of the hollow bar and preventing the leakage of the filler injected to the excavation hole. |
