GRATING CRIB STRUCTURE AND METHOD FOR CONSTRUCTING GRATING CRIB STRUCTURE

摘要

PROBLEM TO BE SOLVED: To surely suppress deformation of the ground by applying a prestress to a slope of a natural ground.;SOLUTION: A grating crib structure comprises: a grating crib 2 installed on the slope 26 of the natural ground 25; a fixing means 10 to be driven into the natural ground 25 for fixing the crossing point in the grating crib 2; and a pressing means 14 interposed between the crib 2 and the slope 26 of the ground 25 for pressing the crib 2 in the direction of separating from the ground 25. The pressing means 14 comprises: a bag body 15 interposed between the crib 2 and the ground 25 and capable of being expanded; and a filler 20 filled in the bag body 25 with pressure for pressing the crib 2 via the bag body 15. The crib 2 is elastically deformed and bent by expanding deformation of the bag body 25 to apply a prestress to the slope 26 of the ground 25 by the reaction force of the crib 2.;COPYRIGHT: (C)2007,JPO&INPIT