Abstract
Stiffened Deep Mixed (SDM) column is a new ground improvement technique which can be used to significantly increase bearing capacity and reduce settlement of soft soil. In the region consisting of deep thick saturated soft soil, SDM columns have been successfully used to support highways and railway embankments, tanks, and buildings. However, there still has been no feasible method in design of SDM column-reinforced subsoil so far. This paper proposed a method to calculate settlement of SDM columns-supported embankment over soft soil. The total settlement of SDM column-reinforced soft soil is a sum of the compression of the soil within length of stiffened core piles, the compression of the soil from core pile tip to SDM column base and the compression of the soil below SDM column base. Punching effect was considered in developing the method to consider the punching deformation of core pile upward and downward. A full scale test was introduced to verify the feasibility of the proposed method and it yielded a good prediction with the field data.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Asaoka, A.: Observational procedure of settlement prediction. Soils Found. 18(4), 87–101 (1978)
Bjerrum, L., Johannesson, I.J., Eide, O.: Reduction of skin friction on steel piles to rock. In: Proceedings of the 7th International Conference on Soil Mechanics and Foundations Engineering, Montreal (1969)
Chen, X.F.: The Theory and Building Cases of Settlement Computation. Science Publication, Beijing (2005)
Jones, A.: Tables of stressed in three-layer elastic systems. Highw. Res. Board Bull. (342), 176–214 (1962)
Ling, G.R., An, H.Y., Xie, D.Z.: Experimental study on concrete core mixing pile. J. Build. Struct. 22(2), 92–96 (2001). (in Chinese)
Qian, Y.J., Xu, Z.W., Deng, Y.G., Sun, G.M.: Engineering application and test analysis of strength composite piles. Chin. J. Geotech. Eng. 35(2), 998–1001 (2013)
Tanchaisawat, T., Suriyavanagul, P., Jamsawang, P.: Stiffened deep cement mixing (SDCM) pile: laboratory investigation. In: Excellence in Concrete Construction Through Innovation-Proceedings of the International Conference on Concrete Construction, pp. 39–48. CRC Press, Netherlands (2009)
Technical specification for strength composite piles (JGJ/T327-2014). China Architecture and Building Press, Beijing (2014)
Voottipruex, P., Bergado, D.T., Suksawat, T., Jamsawang, P.: Behavior and simulation of deep cement mixing (DCM) and stiffened deep cement mixing (SDCM) piles under full scale loading. Soils Found. 51(2), 307–320 (2011)
Ye, G.B., Cai, Y.S., Zhang, Z.: Numerical study on load transfer effect of stiffened deep mixed column-supported embankment over soft soil. KSCE J. Civil Eng. 21, 703–714 (2016)
Zhao, X., Wu, M., Chen, S.W., Kong, D.D.: Study on bearing behaviors of single axially loaded SDCM pile. In: Deep Foundations and Geotechnical in Situ Testing, Proceedings of the 2010 GeoShanghai International Conference, Shanghai, pp. 277–284 (2010)
Acknowledgments
The authors appreciate the financial support provided by the Natural Science Foundation of China (NSFC) (Grant No. 51508408 & No. 51078271) and the Pujiang Talents Scheme (No. 15PJ1408800) for this research.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Ye, GB., Rao, FR., Zhang, Z., Wang, M. (2018). Calculation Method for Settlement of Stiffened Deep Mixed Column-Supported Embankment over Soft Clay. In: Li, L., Cetin, B., Yang, X. (eds) Proceedings of GeoShanghai 2018 International Conference: Ground Improvement and Geosynthetics. GSIC 2018. Springer, Singapore. https://doi.org/10.1007/978-981-13-0122-3_3
Download citation
DOI: https://doi.org/10.1007/978-981-13-0122-3_3
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-0121-6
Online ISBN: 978-981-13-0122-3
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)