软弱夹层对SV波场地放大效应的影响

英文篇名：Influence of Soft Interlayer on Site Amplification Effect of Plane SV Wave
中文刊名：港工技术
英文刊名：Port Engineering Technology
作者：刘月红 ; 于永水
英文作者：Liu Yuehong ; Yu Yongshui(CCCC First Harbor Consultants Co. ; Ltd. ; Tianjin 300222 ; China)
中文关键词：层状场地 ; 软弱土层 ; 地震波 ; SV波 ; 放大系数
英文关键词：bedded ground ; soft soil layer ; seismic wave ; SV wave ; amplification coefficient
出版日期：2013-02-15
机构：中交第一航务工程勘察设计院有限公司;
年：2013
期：01
出版单位：港工技术

摘要

通过建立单向弹性土层和半空间的精确动力刚度矩阵,利用场地离散动力平衡方程求解SV波入射时场地位移放大系数,即SV波入射时土层顶面位移与控制点位移的比值。通过实际算例分析层状场地中的软弱夹层对SV波场地放大效应的影响。
The precise dynamic-stiffness-matrix is built for one-way elastic soil layer and semi-space.The amplification coefficient of SV wave is calculated by site discrete power balance equation,i.e.the ratio of the top surface displacement and control point displacement of the soil layer during the incidence of SV wave.The detailed examples are adopted to analyze the influence of the soft interlayer of the bedded ground on the site amplification effect of SV waves.

引文

[1]Wolf J P.Dynamic Soil-structure Interaction[M].EnglewoodCliffs:Prentice-Hall,1985.
    [2]Wolf J P,Obernhuber P.Free-field Response from InclinedSV-waves,P-waves and Rayleigh waves[J].EarthquakeEngineering and Structural Dynamics,1982(10):847-869.
    [3]Wolf J P,Obernhuber P.Free-field Response from InclinedSH-waves and Love-waves[J].Earthquake Engineering andStructural Dynamics,1982(10):823-845.
    [4]梁建文,尤红兵.层状半空间中洞室对入射平面SV波的放大作用[M].岩土力学,2006,27(3):383-388.
    [5]胡聿贤.地震工程学[M].北京:地震出版社,1988.