| 摘要 |
PURPOSE:To prevent the leak of grout in an anchor hole by a method in which an interruption sheet is attached to a place corresponding to where the leak of grout could occur in the anchor hole in the periphery of a cable 1, the cable is penetrated into the anchor hole, and a grout is orderly packed from the bottom. CONSTITUTION:The positions of cracks are judged from the magnitude of the forces of jet water discharged during the excavation work of an anchor hole 4. An interruption sheet 3 is attached at its one end to a place corresponding to the crack positions on the periphery of a cable 1, the cable 1 is penetrated into the hole 4, and cement mortar is injected into the hole 4 through a hose 2 set inside the cable 1. The cement mortar is orderly packed from the bottom and even into the sheet 3, and thereby the inside of the crack positions is covered by the sheet 3 to prevent the leak of the cement mortar from where cracks developed. |
