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城市垃圾填埋场振动台试验的数值模拟研究

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Indexed by:期刊论文

Date of Publication:2012-02-15

Journal:岩土力学

Included Journals:EI、PKU、ISTIC、CSCD、Scopus

Volume:33

Issue:2

Page Number:623-627

ISSN No.:1000-7598

Key Words:城市垃圾填埋场;振动台试验;地震响应;数值模拟

Abstract:对填埋场振动台模型试验进行非线性数值分析,并与试验结果相互补充、印证,进一步考察填埋场的地震响应规律.研究表明,特殊的夹层结构形式导致水平地震作用下城市垃圾填埋场存在两个主要的响应频率,在这两个主要频率附近模型顶部取得峰值加速度响应;不考虑其他因素的影响,填埋场防渗层的地震永久位移与输入地震动的水平位移振幅近似呈正比关系;坡比是影响填埋场覆盖层和衬垫层永久位移最主要的因素.

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