EVALUATION FOR PAVEMENT'S LOAD BEARING CAPACITY OF EACH LAYER IN CONSIDERATION OF DIFFERENCES OF DETERIORATION RATES BETWEEN BEFORE AND AFTER REPAIR

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  • 高速道路舗装における補修前後の劣化の差異を考慮した層別構造評価
  • コウソク ドウロ ホソウ ニ オケル ホシュウ ゼンゴ ノ レッカ ノ サイ オ コウリョ シタ ソウ ベツ コウゾウ ヒョウカ

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 Load bearing capacity declines by being used over time and the speed of decline differs because of many internal or external factors. The decline of load bearing capacity of pavement is deeply related to deterioration of structural or functional soundness and thus repair enabling utmost recovery in load bearing capacity should be made in the optimal timing. In this study using FWD survey data, the authors estimate the deterioration hazard model that each pavement layer's deterioration process depends on, and draw performance curves, considering the difference of the speed of deterioration between before and after repair.

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