FORWARD ANALYSIS OF PORTABLE FWD TEST USING RESILIENT MODULUS OF SUBGRADE
-
- YAMANKA Kohichi
- 日本大学 理工学部交通システム工学科
-
- TAKEUCHI Yasushi
- 東京農業大学 地域環境科学部地域創成科学科
-
- KAWANA Futoshi
- 東京農業大学 地域環境科学部生産環境工学科
-
- MINEGISHI Kunio
- 日本大学 理工学部交通システム工学科
Bibliographic Information
- Other Title
-
- 路床のレジリエントモデュラスを用いた小型FWD試験の順解析
Abstract
<p> The resilient modulus (Mr) test results are used to evaluate subgrade and roadbeds in pavement structural analysis, which employs the mechanistic-empirical pavement design (MEPD) method. On the other hand, there is a FWD method for evaluating subgrade stiffness using portable FWD in a field. The deflections obtained by both evaluation methods shows different values due to differences in loading speed. It is important to hold the consistency of these evaluation methods in the MEPD. In this study, the portable FWD test and Mr test were performed for a particular subgrade material, and the forward analysis with the multiLayered elastic theory (MLET) and the inverse parabolic load stress distribution was performed to examine the differences in the deflections using the resilient moduli estimated with both methods.</p><p> As a result, it was confirmed that the deflection obtained from the forward analysis and the deflection measured with portable FWD are in good agreement by multiplying the coefficient β that was introduced to consider the loading time to MPED method.</p>
Journal
-
- Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering)
-
Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering) 77 (2), I_225-I_231, 2021
Japan Society of Civil Engineers
- Tweet
Details 詳細情報について
-
- CRID
- 1390009454803598976
-
- NII Article ID
- 130008150577
-
- ISSN
- 21856559
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- Crossref
- CiNii Articles
- KAKEN
-
- Abstract License Flag
- Disallowed