• Journal of the Society of Disaster Information
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• v.16 no.1
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• pp.1-9
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• 2020

Purpose: In this study, the safety management method supplementing the field displacement prediction management technique was performed using the numerical analysis. Method: The analysis was performed using MIDAS GTS / NX program based on the finite element method (FEM). Approximating the displacement data and displacement trend as close as possible to the collapse site, the collapse prevention method was applied after estimating the cause of collapse. Result: The cause of the collapse was estimated by soil parametar, one of the results obtained by performing the Back-analysis. As a result, it was confirmed that the free length of the anchor was insufficient, and the free length of the anchor was changed by the collapse prevention method, and the displacement was significantly reduced. Conclusion: If Back-analysis technique is used in field management, estimating the cause of collapse and suggesting a reasonable collapse prevention measure will help to reduce collase.