| 摘要 |
PROBLEM TO BE SOLVED: To simply and surely suppress rebound and enable the prevention of the deformation or the like of a neighboring structure therefrom by casting one or a plurality of anchors in the rebound occurrence prediction area of a filling periphery or in the periphery. SOLUTION: The property of foundation ground G is grasped under existing filling 10, and the position, structure, strength or the like of various structures 11 constructed on the existing filling 10 or an in-filling structure 12 such as a pipe passage is confirmed. Analysis is performed on the rebound of supposed ground by considering the combination of the range of removing filling 20 by planed filling removal or a structure 21 constructed after filling removal and load produced thereby. As a result, the prediction range of rebound occurrence or a degree of rebound is predicted, and the pattern disposition of anchors 30, the number of the driven anchors and the like are properly determined. Thereby the improvement of the execution cost and execution efficiency of whole work is contrived.
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