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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/36188

    Title: Dynamic interpretation for steady-state deflection tests
    Authors: Chang, Der-wen;Chang, Horng-yuan;Chang, Chia-Lin;Hu, Kuang-fu
    Contributors: 淡江大學土木工程學系
    Keywords: 道路撓曲;動態回算;鋪面復建;動態剪力波模式;靜定撓度試驗;格林柔度影響函數;溫度效應;溼度效應;岩盤效應;Road Deflection;Dynamic Backcalculation;Pavement Rehabilitation;Dynamic Stress Wave Model;Steady State Deflection Test;Green's Flexibility Influence Function;Temperature Effect;Moist Effect;Bedrock Effect
    Date: 1996-02
    Issue Date: 2010-01-11 10:16:40 (UTC+8)
    Publisher: Taipei, Taiwan : China Road Federation
    Abstract: In recent years, research works have been heavily conducted to understand the dynamic influence on data interpretation for the road deflection measurements. For arbitrary paving system under the test load where its dynamics is important, the estimation error of the static backcalculation might be significant and would result inadequate tactics for pavement rehabilitation. In this study, the dynamic effects on steady-state deflection test are studied by comparing static and dynamic solutions from forward and backward simulations. A dynamic backcalculation program based on dynamic stress wave modeling of the Green's flexibility influence functions using versatile iterative procedures is developed to clarify the steady- state deflection test data. Post material correction procedures considering respectively the temperature and moist effects for bituminous layer and subgrade soils are suggested in this program. It is concluded that the newly developed dynamic backcalculation program can provide more reliable prediction, and that the static interpretation shall yield consistent estimation providing that the tests are conducted at relatively low frequency on sites where the bedrock effect is negligible.
    Relation: The Role of Transportation in Economic Development Asian Highway Investment: Proceedings of 1996 International Road Federation Asia-Pacific Regional Meeting, Volume IV, pp.243-250
    Appears in Collections:[Graduate Institute & Department of Civil Engineering] Proceeding

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