Approximate Analytical Method of Load-Settlement Relation for Composite Foundation with Lateral Restriction

Article Preview

Abstract:

Considering reinforcement zone and natural foundation as a whole, the displacement component formulas satisfy with the displacement boundary conditions were constructed based on some hypotheses. Considering friction influence under foundation, a approximate analytical algorithm of foundation deformation was established under embankment loads by the variational method of displacement, and the approximate analytical formula on the relationship between the load and the average settlement was derived. The static load model tests were carried out in laboratory to verify the feasibility of this method proposed in this paper. Key words: load-settlement relation; variational method of displacement; embankment load; composite foundation

You might also be interested in these eBooks

Info:

Periodical:

Pages:

453-458

Citation:

Online since:

December 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Gong Xiao-nan. Generalized composite foundation theory and engineering application[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(1): 1-13(in Chinese).

Google Scholar

[2] Qiu Yu, Qian Guo-chao, Liu Song-yu. DJM pile treated soft clay foundation on express highway the analysis of the additional stress in composite foundation and the settlement of composite foundation [J]. Journal of Highway and Transportation Research and Development, 2001, 18(2): 1―5. (in Chinese).

DOI: 10.1061/jhtrcq.0000119

Google Scholar

[3] Alamgir, Miura, Poorooshash. Deformation analysis of soft ground reinforced by columnar inclusion[J]. Computers and Geotechnics, 1996, 18(4): 267-290.

DOI: 10.1016/0266-352x(95)00034-8

Google Scholar

[4] Yang Tao. Settlement analysis of composite ground improved by flexible floating piles under road embankment[J]. Chinese Journal of Geotechnical Engineering, 2000, 22(6): 741-743(in Chinese).

Google Scholar

[5] Li Hai-fang. Study of settlement calculation method of composite foundation under embankment loads [D]. Hangzhou: Zhejiang University, 2004. (in Chinese).

Google Scholar

[6] Liu jie, Zhang Ken-eng. Load transfer law and deformation of the pile group composite foundation under the flexible foundation[J]. Rock and Soil Mechanics, 2003, 24(2): 178-182(in Chinese).

Google Scholar

[7] Alen C, Baker S, Bengtsson P-E. Lime/Cement column stabilized soil-A new model for settlement calculation[C]. Proceedings of the Intennational Conference on Deep Mixing-Best Practice and Recent Advances, Stockholm, Sweden, 2005: 205-212.

Google Scholar

[8] Yi Yao-lin, Liu Song-yu. Settlement calculation method of composite foundation under embankment load[J]. Engineering Mechanics, 2009, 26(10): 147~153.

Google Scholar

[9] Lu Wen-zhi,Yu Jian-lin. Analytical method for pile composite ground under flexible foundation[J]. Journal of Rock Mechanics and Engineering, 2010, 29(2): 401-408.

Google Scholar

[10] The standard on transport industry of the People's Republic of China, Specification for Design of Highway Subgrades (JTJGD30—2004)[M]. Beijing: China Communication Press, (2005).

Google Scholar

[11] Xu zhi-lun. Elastic mechanics concise course[M]. Beijing, Higher education press, (2001).

Google Scholar