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February 22, 2026Japanese Journal of JSCE0 citations

A Study on the Diagnosis of Subsurface Cavities Based on Three-Dimensional Finite Element Method Analysis and Fatigue Analysis

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AOAtsuhiro OhnoTNTatsuo NISHIZAWA

Key Points

  • The aim is to evaluate subsurface cavities beneath pavements using advanced analysis methods.
  • Conducted three-dimensional finite element method (FEM) analysis of pavements
  • Examined the influence of subsurface cavities on pavement structure
  • Investigated fatigue analysis as a diagnostic tool for identified cavities
  • Demonstrated that the scale and location of cavities significantly affect pavement integrity
  • Indicated that fatigue analysis allows for rational prioritization of response strategies
  • Highlighted the potential for quantitative assessment of subsurface cavity impacts

Abstract

道路陥没の主要因は路面下に発生した空洞である．インフラ老朽化や近年の自然災害の激甚化・頻発化に伴い，路面下空洞の増加が予想され，対策の合理化が課題となっている．本報告では，三次元femを用いた解析を行い，空洞が舗装に与える影響について考察を行った．また，発見された空洞の診断方法として，舗装の疲労解析に基づく手法について検討した．本手法では空洞の規模，発生位置，交通の影響を合理的に取り扱えること，定量的に評価できるため，対応の優先順位付け等に活用できる可能性が示唆された．

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Cite This Study

Ohno et al. (2025) studied this question.

synapsesocial.com/papers/699a9ca1482488d673cd267fhttps://doi.org/10.2208/jscejj.25-21006
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