Abstract
In the embankment widening project, the new embankment will produce large deformation due to the low degree of consolidation, which will affect the stability of the embankment. Obtaining the settlement law of embankment is the premise to ensure the stability of the embankment. In this paper, the deformation law of the new embankment is studied through the embankment model test, and the settlement calculation method of the new embankment is proposed. The model test results show that the new and old embankments have a large settlement difference during the loading process, and the maximum settlement of the new embankment is twice that of the old embankment. The lateral deformation of the new embankment is directly proportional to the vertical deformation, sliding occurs under the ultimate load, and the bearing capacity is lost. Based on the one-dimensional calculation method, the lateral deformation coefficient is introduced, and the two-dimensional embankment settlement formula is obtained. The new embankment is meshed, and the deformation of each node is calculated by the formula, and the difference between the settlement and the model test data is 6.2%, which proves the feasibility and accuracy of the calculation method.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Chai CY, Zhang GG, Wu XY (2017) Analysis of the influence of lateral deformation of soft soil embankment on nearby building foundation. J Railw Eng Soc 34:23–26. https://doi.org/10.3969/j.issn.1006-2106.2017.06.005
Cui W, Lv GH, Liu CY (2017) Computational analysis of differential settlement on new subgrade in expressway widening. Sci Technol Eng 17(34):326–331. https://doi.org/10.3969/j.issn.1671-1815.2017.34.055
Fang L, Zhu ZG (2005) Study of influence factors of lateral deformation of soft soil foundation under embankments. Highway Transp Sci Technol 11:38–42. https://doi.org/10.3969/j.issn.1002-0268.2005.11.009
Giroud JP, Nhiem TV, Obin JP (1973) Mecanique des sols-tables pour le calcul des fondations[M]. http://worldcat.org/isbn/2040073493
Han JL, Zhao Y (2012) Analysis on the settlement characteristics of lateral displacement of the high embankments. J Wuhan Univ Technol Transp Sci Eng 36:165–167. https://doi.org/10.3963/j.issn.1006-2823.2012.01.039
Indraratna B, Balasubramaniam AS, Sivaneswaran N (1997) Analysis of settlement and lateral deformation of soft clay foundation beneath two full-scale embankments. Int J Numer Anal Methods Geomech 21(9):599–618. https://doi.org/10.1002/(SICI)1096-9853(199709)21:93.0.CO;2-L
Jiang GL, Lan WW, Xiao HB, Chen WZ (2014) Calculation method for lateral deformation of foundation under subgrade load. J Chongqing Univ 37(2):89–97
Li GW, Jiang HZ, Yang T, Sheng WG (2008) Influence of lateral deformation on settlement of thick soft soil underlying embankment. Rock Soil Mech 29(10):2817–2822. https://doi.org/10.16285/j.rsm.2008.10.017
Liu J, Jiang X, Qiu YJ (2015) Deformation coupling characteristics of slope weak ground under embankment load. J China Railw Soc 37:94–100. https://doi.org/10.3969/j.issn.1001-8360.2015.04.014
Liu GX, Li YG, Cao YN (2018) Calculation and analysis of lateral deformation of ground under embankment load. Rock Soil Mech 39:4517–4536. https://doi.org/10.16285/j.rsm.2017.1045
Loganathan N, Balasubramaniam AS, Bergado DT (1993) Deformation analysis of embankments. J Geotech Eng 119(8):1185–1206. https://doi.org/10.1061/(ASCE)0733-9410(1993)119:8(1185)
Ma S (1995) Lateral displacement of soft clay foundation under embankment. J Huaqiao Univ Nat Sci Ed 16(02):165–167
Pan GF, Liu XF, Yuan SY, Sun DX et al (2020) Lateral deformation of embankment with the CFG pile-net structure for Yun-Gui passenger dedicated line. Rock Soil Mech 41(2):1–11. https://doi.org/10.16285/j.rsm.2020.0126
Reshma B, Rajagopal K, Viswanadham BVS (2020) Centrifuge model studies on the settlement response of geosynthetic piled embankments. Geosynth Int 27:170–181. https://doi.org/10.1680/jgein.19.00009
Sun LQ, Yan SW, Xu Y (2011) Study of wave type asymmetry settlement and its mechanism of soft soil roadbed. Rock Soil Mech 32(1):526–531. https://doi.org/10.16285/j.rsm.2011.s1.090
Tavenas F, Mieussens C, Bourges F (1979) Lateral displacements in clay foundations under embankments. Can Geotech J 16:532–550. https://doi.org/10.1139/t79-059
Wang M, Cai GJ, Liu WY et al (2019) Evaluation of engineering characteristics of new and old soft soil foundation based on advanced CPTU data. Chin J Geotech Eng 41(2):81–84. https://doi.org/10.11779/CJGE2019S2021
Wu PC, Feng WQ, Yin JH (2020) Numerical study of creep effects on settlements and load transfer mechanisms of soft soil improved by deep cement mixed soil columns under embankment load. Geotext Geomembr 48:331–348. https://doi.org/10.1016/j.geotexmem.2019.12.005
Acknowledgements
This work was supported by the National Natural Science Foundation of China (No. 51778345, No.52078278), the Shandong Provincial Natural Science Foundation for Distinguished Young Scholars (No. JQ201811), the Key Research and Development Foundation of Shandong Province of China (No. 2019GSF109006), and the program of Qilu Young Scholars of Shandong University. Great appreciation goes to the editorial board and the reviewers of this paper.
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Lv, Gh., Cui, W. & Wang, Sj. Model Test and Theoretical Analysis of New and Old Embankments Differential Settlement Considering Lateral Deformation. Geotech Geol Eng 39, 5743–5751 (2021). https://doi.org/10.1007/s10706-021-01862-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10706-021-01862-4