Settlement Analysis of Soft Ground Replacement under Earthquake

Abstract:

The dynamic time-history response analysis method was employed to analyze the dynamic response of soft ground replacement with sand-gravel cushion. The deformation distribution of soft ground replacement with different thickness sand-gravel cushion was investigated under seismic wave. The results reveal that the bearing and asti-deformation capacity can be improved effectively for replacement sand-gravel cushion under earthquake loads by increasing the thick of cushion. The vertical displacement of foundation soil decreases gradually with the increase of the thick of cushion. The practice shows that replacement sand-gravel cushion provides a positive contribution to the aseismic effect of foundation soils mass. The present research can provide some references to similar projects.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 2379-2382
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.2379
• Online since: May 2012
• Authors: Zhong Liu, Shu Hong An, Rong Hong Yuan, Fei Li
• Keywords: Dynamic Time-History Response Analysis Method, Highly Seismic Region, Soft Ground Replacement

References

[1] JGJ 79-2002. Technical Code for Groung Treatment of Buildings, Ministry of Construction P.R. China, Beijing, 2002 (in Chinese)

[2] Kunming Hydroelectric Investigation, Design and Research Institute: The Geological Report of the Water Conveyance Line of Caojia Wan ~ Kunming Section Geo-technical Engineering[R] 2009, (in Chinese)

[3] Itasca Consulting Group ,Inc.: Fast Language Analysis of Continua in 3 Dimensions Version 3.0, user's manual, (2005)

[4] W. B. Peng: The Practical Course of FLAC3D[M], Beijing, China Machine Press, 2008 (in Chinese)

[5] Kuhlemeyer R L,Lysmer J: J. of the Soil Mechanics and Foundations Division, ASCE Vol. 99 (1973), p.421