| 摘要 |
PROBLEM TO BE SOLVED: To prevent ground heaving by simpler construction while securing safety from the ground heaving even during cutting down of bed to an excavation bottom surface. SOLUTION: A construction method for preventing ground heaving comprises: a step of drilling a plurality of holes 5 with a predetermined diameter, which are elongated to an artesian water layer 3, in object ground for earth retaining excavation; a step of inserting a reinforcement body 10, in which bag bodies 11 and 12 connected to piping 13 are coupled to each other by means of a tension member 14 with predetermined strength, into each hole formed by drilling; and a step of infilling a solidifying agent 30 into each of the bag bodies 11 and 12 of the reinforcing body 10, which is positioned in the artesian water layer 3 and the bottom ground 4 in the hole 5, through the piping 13, and of bringing each of the bag bodies 11 and 12 into pressure contact with the artesian water layer 3 and the bottom ground 4, which constitute a hole wall. COPYRIGHT: (C)2012,JPO&INPIT |
