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基于Monte Carlo的砂土地震液化危害概率分析方法
Probability Method for Assessing the Hazard of Sand Seismic Liquefaction Based on Monte Carlo
【摘要】 针对砂土地震液化危害具有随机性和不确定性,提出了砂土地震液化危害的概率分析方法,即用概率表示不液化、轻微液化、中等液化和严重液化,并给出了采用Monte Carlo法(蒙托卡罗法)计算液化危害概率的表达式。采用该方法对一算例进行了分析,认为概率分析方法能较清楚地反映液化危害程度。
【Abstract】 As the hazard of sand seismic liquefaction is random, a probability method for assessing the hazard is proposed, that is, non-liquefaction, light liquefaction, middle liquefaction, and serious liquefaction are quantified with probability. The expressions to compute the liquefaction hazard probability are also proposed by the method of Monte Carlo. A case is analyzed by the probability method and the result shows that the probability method can be used to quantitatively assess the liquefaction hazard.
【关键词】 地震;
砂土液化;
灾害;
可靠性;
Monte Carlo;
【Key words】 Earthquake; liquefaction; hazard; probability; Monte Carlo;
【Key words】 Earthquake; liquefaction; hazard; probability; Monte Carlo;
【基金】 上海市重点学科建设项目资助(沪教委[2001]44号)
- 【文献出处】 地下空间与工程学报 , 编辑部邮箱 ,2005年01期
- 【分类号】TU441
- 【被引频次】2
- 【下载频次】152