Abstract
This paper aims to present an integrated analytical model for geosynthetic-reinforced and pile-supported embankments (GRPSEs) by rationally combining the reinforced embankment, the pile-embedded soft soil foundation, the stress adjustment region, and the equal settlement region of the substratum. The embankment geometry boundary is considered for computing the additional stress beneath the adjustment region of the underlying stratum. The geosynthetic reinforcement (GR)-reinforced embankment together with the composite foundation is considered as a whole system by ensuring the consistency of differential settlement between pile and soil on the subsurface. The stress distribution predictions of the proposed model provide reasonable agreements with the previously published results. Parametric studies and quantitative results of this proposed analytical model show that the whole GRPSE is methodically combined. It is demonstrated that increasing the area converge ratio by decreasing the center-to-center spacing is seen to be a more effective way to enlarge pile efficiency, especially when the area converge ratio is less than 10%. Increasing the compression modulus of the embankment or embedment of pile-toe into a deeper underlying stratum will be beneficial to the increment of pile efficiency. The force captured by the pile increases almost linearly with the ratio of GR deflection to the clear pile spacing.
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Acknowledgments
This work was supported by the high-level talent work launch fee funding project of Jinling Institute of Technology (Grant Nos. jit-b-202130 and jit-fhxm-202106); the Natural Science Research Project of Colleges and Universities in Jiangsu Province; the Open Fund of Key Laboratory of Flood & Drought Disaster Defense, the Ministry of Water Resources (Grant No. KYFB202112071053); and the National Key Research and Development Project (Grant No. 2018YFC1508505). The second author also acknowledges the support of the Shandong Excellent Young Scientists Fund Program (Overseas) (Grant No. 2022HWYQ-016), Shandong Provincial Natural Science Foundation (Grant No. ZR2021QE254), and Guangdong Basic and Applied Basic Research Foundation (Grant No. 2021A1515110564).
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Published In
International Journal of Geomechanics
Volume 22 • Issue 12 • December 2022
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© 2022 American Society of Civil Engineers.
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Received: Apr 28, 2021
Accepted: Jun 12, 2022
Published online: Sep 27, 2022
Published in print: Dec 1, 2022
Discussion open until: Feb 27, 2023
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