Soil Isolation for Seismic Protection Using a Smooth Synthetic Liner
This article is a reply.
VIEW THE ORIGINAL ARTICLEPublication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 130, Issue 11
Abstract
A synthetic liner consisting of a nonwoven geotextile over an ultrahigh molecular weight polyethylene, geotextile/UHMWPE, placed within a soil profile can dissipate seismic energy transmitted to the overlying soil layer and structure. This concept of soil isolation can be an effective and inexpensive way of reducing seismic ground motions through slip displacements. Shaking table tests on soil layers isolated using cylindrical and tub-shaped liners were conducted using harmonic and earthquake base excitations. The results show that an isolation liner can significantly reduce the accelerations at the surface of the isolated soil mass. Accompanying such a reduction in accelerations are slip displacements that manifest around the perimeter of the isolated soil. Because of the curved nature of the liner, permanent slips are minimized by the restoring effect of the gravitational forces of the isolated soil mass. Analytical results under field scale conditions indicate that a soil isolation liner can dramatically reduce the peak and spectral accelerations of a vertically propagating shear wave. Such a reduction can provide seismic protection to a structure founded on soil-isolated ground.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Catan, M. ( 2000). “Soil isolation using geosynthetic liner.” MS thesis, Northeastern University, Boston.
6.
Hushmand, B., and Martin, G. R. ( 1991). “Layered soil-synthetic liner base isolation system.” Final Report, NSF Small Business Innovative Research Program.
2.
Kavazanjian, E., Hushmand, B., and Martin, G. ( 1991). “Frictional base isolation using layered soil-geosynthetic liner system.” Proc., ASCE, 3rd U.S. Conf. on Lifeline Earthquake Engineering, Los Angeles, 1140–1151.
3.
Yegian, M. K., and Kadakal, U. (2004). “Foundation isolation for seismic protection using smooth synthetic liner.” J. Geotech. Geoenviron. Eng., 130(11), 1121–1130.
4.
Yegian, M. K., and Lahlaf, A. M. (1992a). “Dynamic interface shear properties of geomembranes and geotextiles.” J. Geotech. Eng., 118(5), 760–779.
5.
Yegian, M. K., and Lahlaf, A. M. ( 1992b). “Geomembranes as base-isolation.” Geosynthetic Fabric Report, September.
Information & Authors
Information
Published In
Copyright
Copyright © 2004 ASCE.
History
Published online: Oct 15, 2004
Published in print: Nov 2004
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.