| 摘要 |
PROBLEM TO BE SOLVED: To directly construct a structure having a high strength in a cavity or space in the ground or water. SOLUTION: In this construction method, a cylindrical bag-like injection form 2 made of a flexible material is inserted in an diameter contracted state through a minor-diameter excavation hole 3 communicating with the cavity part 2 in the ground 1, sand is injected into the injection form 4 in a prescribed position to extend the injection form 4 in the cavity part 2, and further a hardenable resin is filled into the injection mold 4 through its upper opening part followed to be made to be hardened, thereby constructing a reinforcing structure in which the sand and hardenable resin are integrally hardened in the injection mold 4. Accordingly, the cavity part 2 in the ground can be reinforced with the reinforcing structure filled and hardened through the minor-diameter excavation hole 3. When a structure is constructed in water, it can be constructed in the same manner by using the injection form 4. COPYRIGHT: (C)2004,JPO
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