On arrangement of source and receivers in SASW testing |
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| Authors: | Longzhu Chen Jinying Zhu Xishui Yan Chunyu Song |
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| Institution: | a School of Civil Engng. and Mechanics, Shanghai Jiaotong University, Shanghai 200030, China;b Department of Civil and Envir. Engng., University of Illinois at, Urbana-Champaign, IL 61801, USA;c College of Architecture and Civil Engng., Zhejiang Univ., Hangzhou 310027, China |
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| Abstract: | This study investigates the effects of source and receivers arrangement on the Rayleigh wave dispersion curve in SASW testing. Analytical studies and numerical simulations with coupled finite and infinite elements are presented in this paper. It is shown that arrangement of source and receivers has a significant effect on test results, especially for soils with high Poisson's ratio or saturated soils. Larger source-to-receiver distance and receiver spacing usually give better results, and it is unnecessary to keep them equal. To satisfy the error control requirement in Rayleigh wave phase velocity measurement, source-to-receiver distance and receiver spacing should meet corresponding minimum values, which are proposed for different Poisson's ratios of soil in this paper. |
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| Keywords: | Author Keywords: Rayleigh wave Spectral analysis of surface wave (SASW) testing Wave velocity Arrangement of receivers |
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