Relevant Aspects of Applying Soil Improvement Method for Liquefaction Mitigation — Case Study

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Sesov, Valtko; Talaganov, Kosta
University of Missouri--Rolla
Geotechnical Engineering
conference paper description
This paper presents some experience gathered during the implementation of soil improvement in founding of a residential-business complex located in seismically prone area. The previously performed field and laboratory geomechanical tests proved that the geotechnical medium of the location was characterized by a high heterogeneity of soil materials with predominant presence of layers of low strength-deformability characteristics. A high underground water level and layers of fine-grained uniform sands susceptible to dynamic instability under seismic effects were observed. Such an unfavorable geotechnical situation of the given location imposed the need of improving of the natural foundation soil. The most favorable and rational solution that could provide safety and stability of structures was the use of gravel drains and well-compacted sub-base gravel layer.