Abstract:A new probabilistic model is proposed to evaluate the development of pore pressure in saturated sands under random seismic loading. The nonlinear dynamic property of sands, the uncertainty of liquefaction resistance and the nonlinearity of development of pore pressure are considered in the model. The cumulative distribution functions of pore pressure at the end of any cycle of loading are computed. The probabilities of liquefaction are directly obtained from the functions when the pore pressuie ratio is 1.0. Three typical sites of Niigata Earthquake are analyzed with the new method. The good agreement of the calculated results with field observation confirms the applicability of this method.
基金资助:
国家自然科学基金会青年科学基金资助课题
引用本文:
吴再光;林皋;韩国城;. 随机地震作用下砂土液化概率分析[J]. 岩土工程学报, 1990, 12(5): 1-8.
Wu Zaiguang, Lin Gao, Han Guocheng. Probabilistic Analysis of Sand Liquefaction under Stochastic Seismic Loading. Chinese J. Geot. Eng., 1990, 12(5): 1-8.