| 摘要 |
PURPOSE:To exactly inject a chemical grout by a method in which a rubber tube is provided to at least a part of the side of an outer cylinder near the tip of a two-component type chemical grout injection pipe in such a way as to make it closely contact with the wall face of a hole by action of a screwing mechanism. CONSTITUTION:A chemical grout pipe is penetrated to a given depth into the pit of the ground. When a regulating nut 5 is turned toward the clamping direction while an outer pipe 6 is pushed, an inner tube connection pipe 9, an inner tube top 12, an inner tube connection pipe 10 coupled with the top 12 and an inner operating tube 3 are relatively pulled up. When an operating adaptor 22 is pushed up to the surface of the ground, a rubber tube 2 is bend outerwards. Furthermore, when the screwing mechanism is continuously operated, the rubber tube 2 is closely contacted with the wall face of the pit to effect a packering function. After a chemical grout is injected, the screwing mechanism is inversely operated, and the rubber tube 2 is restored to its original position for next grouting operations. |
