Dynamic response of an alluvial valley consists of three types of soil  

作　　者：Hasan Faik Kara 

机构地区：[1]Civil Engineering Department,Trakya University,Turkey

出　　处：《Earthquake Engineering and Engineering Vibration》2020年第2期289-305,共17页地震工程与工程振动（英文刊）

基　　金：Trakya University,Department of Scientific Research Projects under Grant No.2016/73。

摘　　要：Dynamic response of an alluvial valley consisting of three different types of soil was studied.In the twodimensional model,the alluvial valley was assumed to have half-cylindrical shape.The alluvial valley contained three different types of soil with different shapes.The valley was surrounded by a half-space.All of the soil types and the half-space were assumed to be isotropic,homogeneous and linear elastic.The half-space was excited by simple harmonic SH-waves radiated from a strike-slip fault.The fault was assumed to have circular-arc shape in the mathematical model.The governing equations were solved by using wave function expansion method where boundary conditions were relatively simple.In the regions where boundary conditions were more complex,finite difference method was employed.Consequently,the wave propagation problem was solved semi-analytically.The obtained numerical results showed that surface displacement amplitudes are significantly affected by the material properties of the different soil types of the alluvial valley.It was also observed that the shapes of the soil types in the alluvial valley played a considerable role in surface displacements.

关 键 词：CYLINDRICAL SH-WAVES ALLUVIAL VALLEY STRIKE-SLIP FAULT 

分 类 号：S15[农业科学—土壤学] P315.9[农业科学—农业基础科学]