STUDY ON ESTIMATION METHOD OF RESILIENT MODULUS MATERIAL CONSTANTS OF SUBGRADE USING PORTABLE FWD
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- TAKEUCHI Yasushi
- 東京農業大学 地域環境科学部地域創成科学科
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- KAWANA Futoshi
- 東京農業大学 地域環境科学部生産環境工学科
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- YAMANAKA Koichi
- 日本大学 理工学部交通システム工学科
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- KOHATA Yukihiro
- 室蘭工業大学大学院 工学研究科もの創造系領域
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- SEKINE Etsuo
- (株)HRC研究所
Bibliographic Information
- Other Title
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- 小型FWDを用いた路床のレジリエントモデュラスの材料定数推定手法の提案
Abstract
<p> In this study, in order to measure quickly the results equivalent to the Mr test in the field and to enable appropriate bearing capacity evaluation of subgrade in the theoretical structural design of pavement, estimation method of material parameters used for Mr calculation from portable FWD test results using the multilayered theory was examined. As a result, it was found that the calculation point can be set from the forward analysis using the multilayered elastic theory, and that the material parameters can be obtained using regression equation of Mr from the stress state at the calculation point. In addition, by analyzing past Mr test results, it was found that the depth of the calculation point and the elastic modulus of the subgrade can be approximated by the linear equation.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering)
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Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering) 78 (1), 40-51, 2022
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390573593431249280
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- ISSN
- 21856559
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- KAKEN
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- Abstract License Flag
- Disallowed