Volume 12, Issue 2 And B (Transaction B: Geotechnical Engineering April 2014)                   IJCE 2014, 12(2 And B): 160-173 | Back to browse issues page


XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Panji M, Kamalian M, Asgari Marnani J, Jafari M K. Antiplane seismic response from semi-sine shaped valley above embedded truncated circular cavity: a time-domain half-plane BEM. IJCE. 2014; 12 (2) :160-173
URL: http://ijce.iust.ac.ir/article-1-840-en.html

Abstract:   (2545 Views)
In this paper, normalized displacement amplitude of the ground surface was presented in the presence of the semi-sine shaped valley above the truncated circular cavity embedded in a homogenous isotopic linear elastic half-plane, subjected to obliquely propagating incident SH waves as Ricker wavelet type. The proposed direct time-domain half-plane boundary element formulation was used and extended to analyze the combined multi-boundary topographic problems. While using it, only boundary of the valley and the surrounding cavity should be discretized. The effect of four geometric parameters including shape ratio of the valley, depth ratio, horizontal location ratio and truncation thickness of the cavity and incident wave angle was investigated on the responses at a single dimensionless frequency. The studies showed that surface behavior was completely different due to complex topographic features, compared with the presence of either valley or cavity alone. In addition, the cavity existence below the surface could play a seismic isolation role in the case of vertical incident waves and vice versa for oblique waves.
Full-Text [PDF 1593 kb]   (1189 Downloads)    
Type of Study: Research Paper | Subject: Seismic Geotechnique

Add your comments about this article : Your username or Email:
Write the security code in the box

© 2015 All Rights Reserved | International Journal of Civil Engineering

Designed & Developed by : Yektaweb