An analytical solution to the scattering of cylindrical SH waves by a partially filled semi-circular alluvial valley: near-source site effects

被引：34

作者：

Zhang Ning ^{[1
,2
]}

Gao Yufeng ^{[1
,2
]}

Yang Jie ^{[3
]}

Xu Changjie ^{[4
]}

机构：

[1] Hohai Univ, Geotech Res Inst, Nanjing 210098, Jiangsu, Peoples R China

[2] Hohai Univ, Key Lab, Minist Educ Geomech & Embankment Engn, Nanjing 210098, Jiangsu, Peoples R China

[3] Nanjing Hydraul Res Inst, Nanjing 210024, Jiangsu, Peoples R China

[4] Zhejiang Univ, Res Ctr Coastal & Urban Geotech Engn, Hangzhou 310058, Zhejiang, Peoples R China

来源：

EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION | 2015年 / 14卷 / 02期

基金：

中国国家自然科学基金;

关键词：

site effects; source effects; wave function expansion method; cylindrical SH waves; wave scattering and diffraction; V-SHAPED CANYON; GROUND MOTION; TOPOGRAPHIC AMPLIFICATION; SURFACE MOTION; DIFFRACTION; BASIN;

D O I：

10.1007/s11803-015-0016-3

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The earth's surface irregularities can substantially affect seismic waves and induce amplifications of ground motions. This study investigates whether and how the source characteristics affect the site amplification effects. An analytical model of a line source of cylindrical waves impinging on an alluvial valley is proposed to link the source and site. The analytical solution to this problem proves one aspect of the strong effect of source on site amplification, i.e., the wave curvature effect. It is found that the site amplification depends on the source location, especially under conditions of a small source-to-site distance. Whether the displacement is amplified or reduced and the size of the amplification or reduction may be determined by the location of the source. It is suggested that traditional studies of site responses, which usually ignore the source effect, should be further improved by combining the source with site effects.

引用

页码：189 / 201

页数：13

共 33 条

[11]

Liang J.W., 2004, ACTA SEISMOLOGICA SI, V17, P549

[12] Diffraction of plane SV waves by a shallow circular-arc canyon in a saturated poroelastic half-space [J].

Liang, Jianwen ;

Ba, Zhenning ;

Lee, Vincent W. .

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, 2006, 26 (6-7) :582-610

[13] Site effect study in central Mexico using H/V and SSR techniques: Independence of seismic site effects on source characteristics [J].

Lozano, Lucia ;

Herraiz, Miguel ;

Singh, Shri Krishna .

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, 2009, 29 (03) :504-516

[14]

Luo H, 2008, 248 U SO CAL

[15] Soil-Structure Interaction on a Shallow Rigid Circular Foundation: SH Wave Source from Near-Field Excitations [J].

Luo, Hao ;

Lee, Vincent W. .

JOURNAL OF EARTHQUAKE ENGINEERING, 2014, 18 (01) :67-89

[16]

Mow, 1971, R482PR RAND CORP

[17] 3-DIMENSIONAL SIMULATION OF A MAGNITUDE-7.75 EARTHQUAKE ON THE SAN-ANDREAS FAULT [J].

OLSEN, KB ;

ARCHULETA, RJ ;

MATARESE, JR .

SCIENCE, 1995, 270 (5242) :1628-1632

[18] Site amplification in the Los Angeles basin from three-dimensional modeling of ground motion [J].

Olsen, KB .

BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, 2000, 90 (06) :S77-S94

[19]

Parvez IA, 2006, CURR SCI INDIA, V91, P827

[20]

Sanchez-Sesma F.J., 2002, ISET J EARTHQUAKE EN, V39, P167

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