Numerical Modeling of the Seismic Response of Soil-Mixed Reinforced Ground
Ground reinforcement methods such as stone columns, jet grouting, and soil mixing are commonly used to improve subsoil conditions for seismic mitigation. The purpose of this improvement is usually for foundation support and/or liquefaction mitigation. Additional benefits, such as a possible reduction in seismic ground motions, are not considered in NEHRP/IBC code provisions. This paper summarizes results from parametric dynamic 3-D finite element analyses of soil-mix reinforced ground. The results suggest that stiff ground reinforcements arranged in lattice-type soil-mix panels may significantly reduce ground motions and improve NEHRP/IBC Site Classification. Moreover, the cost of the soil improvement may be more than offset by the lower construction cost resulting from lower design motions and a more favorable site classification. Additional research is needed to provide detailed insight.
J. R. Martin and C. G. Olgun, "Numerical Modeling of the Seismic Response of Soil-Mixed Reinforced Ground," Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering (2009, Alexandria, Egypt), vol. 3, pp. 2296-2299, IOS Press, Oct 2009.
The definitive version is available at https://doi.org/10.3233/978-1-60750-031-5-2296
17th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2009 (2009: Oct. 5-9, Alexandria, Egypt)
Geosciences and Geological and Petroleum Engineering
Keywords and Phrases
Earthquake; Ground Improvement; Numerical; Seismic; Soil Mixing
International Standard Book Number (ISBN)
Article - Conference proceedings
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