Compound Deep Soil Mixing Columns for Retaining Structures in Excavations
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 131, Issue 11
Abstract
Deep soil mixing (DSM) columns as a retaining structure for deep excavations in soft soil areas has been widely used because, in addition to its low cost, it has fewer environmental hazards and no need of dewatering. However, due to its low tensile strength, this system usually requires a very thick wall cross section and is generally impractical for use as a retaining structure for very deep excavations. In an attempt to extend the use of DSM columns for deeper excavations, this paper introduces a so-called compound DSM retaining wall system that combines DSM columns with reinforced concrete bored piles. As shown in the paper, both the compressive strength of soil-cement mixtures and the bending moment capacity of concrete piles are developed to their full advantage in this hybrid soil-retaining system. The paper also presents the detail design methodology for the proposed compound DSM wall as a retaining structure for deep excavation. Finally, the benefits of this hybrid retaining system are further demonstrated through a case study completed in Shanghai, China.
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References
Bowles, J. (1989). Foundation analysis and design, 4th Ed., McGraw-Hill, New York, 768–778.
Bruce, D., Bruce, M., and DiMillio, A. (1998). “Deep mixing method: A global perspective.” Geotechnical Special Publication No. 81: Soil Improvement For Big Digs, Boston, 1–26.
Cai, W., and Shao, Y. (1994). “Introduction of arched deep soil mixing retaining in deep excavation.” Innovation Technology Exchange Symp. on Deep Excavation in Shanghai, Shanghai, 98–119.
Fang, H., et al. (1991). Foundation engineering handbook, 2nd Ed., Van Nostrand Reinhold, New York, 447–510.
Gaylord, E., and Gaylord. C. (1990). Structural engineering handbook, 3rd Ed., McGraw-Hill, New York, 17.9–17.13.
McMahon, D. R., Maltese, P., Andromalos, K. B., and Fishman, K. L. (2001). “A DSM wall for excavation support.” Foundations and ground improvement, T. L. Brandon, ed., ASCE, Reston, Va., 670–684.
Shao, Y., Zhang, C., and Macari, E. J. (1998). “The application of deep mixing pile walls for retaining structures in excavations.” Geotechnical Special Publication No. 81: Soil Improvement for Big Digs, Boston, 84–95.
Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 131 • Issue 11 • November 2005
Pages: 1370 - 1377
Copyright
© 2005 ASCE.
History
Received: Mar 17, 2003
Accepted: Oct 21, 2004
Published online: Nov 1, 2005
Published in print: Nov 2005
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