Influence of Variation of Groundwater Level on Deformation of Subgrade Based on Hydromechanical Coupling

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Abstract:

Deformation of subgrade caused by variation of groundwater level is a problem of hydromechanical coupling. The coupling mechanism of seepage and deformation of subgrade was analyzed, and a model of hydromechanical coupling was then established. The resilient modulus of the model is related to the water content and compactness of subgrade soil. The relationship between them was obtained based on laboratory tests, and was employed to research the influence of rise of groundwater level on resilient modulus and deformation of subgrade. The results showed that the rise of water level had great influence on resilient modulus of subgrade, and the deformation of subgrade can’t be neglected.

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Periodical:

Advanced Materials Research (Volumes 457-458)

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30-33

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Online since:

January 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] S.X. He, Q.Z. Hu, X.S. Zhang. Influence of seepage on ground settlement of deep foundation pit[J], Chinese Jounral of rock mechanics and engineering, Vol. 22(2003) No. 9, p.1551. (In chinese).

Google Scholar

[2] Y.Q. Li, J. Zhou, K.H. Xie. Calculation of base heave of foundation pit induced by unsteady seepage[J]. Chinese Jounral of rock mechanics and engineering, Vol. 26(2007) No. 1, p.2952. (In chinese).

Google Scholar

[3] D.F. Tian, D.F. Liu, S.M. Wang et al. Coupling numerical analysis of unsaturated seepage and stress fields for soil slope[J]. Rock and soil mechanical, Vol. 30(2009) No. 3, p.810. (In chinese).

Google Scholar

[4] D.Q. Li, Selig Ernest T. Resilient modulus for fine-grained subgrade soils[J]. Journal of Geotechnical Engineering, Vol. 120(1994) No. 6, p.939.

DOI: 10.1061/(asce)0733-9410(1994)120:6(939)

Google Scholar

[5] E.C. Drumm, J.S. Reeves. Subgrade Resilient Modulus Correction for Saturation Effects[J]. Journal of Geotechnical and Geoenvironmental Engineering, Vol. 123(1997) No. 7, p.663.

DOI: 10.1061/(asce)1090-0241(1997)123:7(663)

Google Scholar

[6] A. Rivera, E. Ledoux. Nonlinear modeling of groundwater flow and total substidence of the mexico city aquifer-aquitard system. Land subsidence (Proceedings of the Fourth International Symposium on Land Subsidence)(1991).

DOI: 10.1016/0148-9062(92)92180-k

Google Scholar

[7] Z. Lu, H.L. Yao, W.P. Wu. Structural analysis and design method of dynamic deformation of expressway subgrade[J]. Rock and soil mechanical, Vol. 31(2010) No. (9), p.2907. (In chinese).

Google Scholar