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Empirical Analysis of Horizontal Ground Displacement Generated by Liquefaction-Induced Lateral Spreads.
Barlett, S. F.; Youd, T. L.
National Science Foundation, Washington, DC.; New York State Science and Technology Foundation, Albany.; Corps of Engineers, Washington, DC., August 17, 1992, 119 p.
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Liquefaction-induced ground failure is responsible for considerable damage to engineered structures during major earthquakes. The study compiles earthquake, geological, topographical, and soil factors that affect ground displacement and develops empirical models from these factors. Case histories of lateral spread are gathered from the 1906 San Francisco, 1964 Alaska, 1964 Niigata, 1971 San Fernando, 1979 Imperial Valley, 1983 Nihonkai-Chubu, 1983 Borah Peak, Idaho, and 1987 Superstition Hills earthquakes. Multiple linear regression (MLR) is used to develop empirical models from the compiled data. Two general models are derived herein, one for free face failures and one for ground slope failures. The predictive performance of the proposed empirical models is determined by comparing predicted displacements with those actually measured at the case history sites.
Lateral strain; Ground motion; Earthquake engineering; San Francisco (California); San Fernando (California); Japan; Case histories; Alaska; Idaho; Liquefaction