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收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

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Subject: search.filters.subject.SASW

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Now showing 1 - 3 of 3
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    Geotechnical applications and standardization of surface wave method-from engineer's perspective
    (2010-01-01)
    Lin, Chih-Ping
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    Lin, Chun-Hung
    ;
    Chang, Tzong-Sheng
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    土木工程學系
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    Department of Civil Engineering
    This paper focuses on the power and concerns of surface wave method in geotechnical applications. It is increasingly used to map not only the vertical variation but also the lateral variation of S-wave velocity. The methods available for surface wave testing and analysis are reviewed and re-examined. Case histories are presented to highlight unique features of surface wave method and point out potential problems. The solution to those problems is proposed and further standardization of surface wave testing is suggested.
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    Dispersion analysis of surface wave testing - SASW vs. MASW
    (2017-08-01)
    Lin, Chih-Ping
    ;
    Lin, Chun-Hung
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    Chien, Chih-Jung
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    交大名義發表
    ;
    National Chiao Tung University
    The data reduction method for dispersion relation in surface wave testing is conventionally associated with the certain method of data acquisition, for example, phase shift analysis in the two-station SASW method and 2-D multi-station wavefield transformation of surface wave in the MASW method. The fundamental difference in dispersion analysis between the 2-station and multi-station approach was clarified in this study. Limited to the two channel data, conventional dispersion analysis of SASW suffers from possible phase un-wrapping errors, inefficient data filtering and synthesis, and inability to distinguish multiple modes. The MASW approach, on the other hand, can avoid these problems and provide visualization of dispersion relation through 2D wavefield transformation. As opposed to multiple shots in the SASW testing, the MASW testing typically uses only single shot, limiting the obtainable wavelengths due to near field and far field effects. Combining the merits of these two methods, a multi-shot common receiver configuration survey is proposed to acquire multi-station wavefield for 2D wavefield transformation using as few as two receivers. An additional benefit of the multi-shot common receiver configuration is shown to be better control and higher lateral resolution of the measurement range. (C) 2017 Elsevier B.V. All rights reserved.
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    Metamorphosing the SASW Method by 2D Wavefield Transformation
    (2012-08-01)
    Lin, Chun-Hung
    ;
    Lin, Chih-Ping
    ;
    交大名義發表
    ;
    National Chiao Tung University
    Dispersion analysis in surface wave testing is conventionally associated with a certain method of data acquisition, such as phase angle analysis in the two-station spectral analysis of surface wave (SASW) method and two-dimensional (2D) multistation wavefield transformation in the multistation analysis of surface wave (MASW) method. A new procedure has been developed to reconstruct the SASW data as MASW-imitating data, taking advantage of the 2D multistation wavefield transformation to better analyze the SASW data. Numerical simulations and a real-world example demonstrate the feasibility of this procedure, but also reveal an unwanted side effect associated with aliasing. A common-receiver survey is proposed for future experiments to eliminate this unwanted side effect and at the same time increase the lateral resolution. DOI: 10.1061/(ASCE)GT.1943-5606.0000657. (C) 2012 American Society of Civil Engineers.