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An Experimental Study about the Properties of Stress Wave in SPT Model Rod  

권기철 (동의대학교 토목공학과)
서원석 (한국과학기술원 토목공학과)
김범상 (SK 건설연구소)
김동수 (한국과학기술원 토목공학과)
이병식 (공주대학교 토목공학과)
Publication Information
Journal of the Korean Geotechnical Society / v.18, no.4, 2002 , pp. 95-104 More about this Journal
Abstract
The theoretical and analytical studies on dynamic signals(force and acceleration signals) measured at SPT rod are actively made. In this paper, the characteristics of stress wave(force signals) in SPT rod were studied experimentally using model rod system. It was noted that the amplitude ratios of reflected wave over incident wave in different end conditions were well matched with theoretical results. The impedance of soil could be determined if the characteristics of incident and reflected waves could be evaluated quantitatively in situ SPT test. On the other hand, the results of model tests showed that the effect of reflected wave caused by side friction was negligible, and therefore, the analysis model considering only end resistance of sampler could be applicable in dynamic analysis of SPT.
Keywords
End conditions; Impedance; Rod-ground system; SPT; Stress wave;
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  • Reference
1 SPT Dynamic Analysis and Measurements /
[ Abou-matar, H.;Goble, G. G. ] / Journal of Geotechnical and Geoenvironmental Engineering   DOI   ScienceOn
2 /
[ Richart, F. E.;Woods, R. D.;Hall, J. R. ] / Vibrations of Soils and Foundations
3 Determination of Wave Equation Soil Constants from the Standard Penetration Test /
[ Goble, G. G.;Abou-matar, H. ] / Proceeding, Fourth International Conference on the Application of Stress-Wave Theory to Piles
4 SPT Energy Measurements Using a PC Based System /
[ Robertson, P. K.;Woeller, D.J. ] / 44th Canadian Geotechnical Conference
5 Energy Dynamics of SPT /
[ Schmertman, J.;Alejandro P. ] / Journal of the GED
6 SPT Energy Transmission: Theory, Measurement and Significance /
[ Clayton, C. R. I. ] / Ground Engneering
7 SPT Hammer Energy Measurement /
[ Kovacs, W. D.;Salomone, L. A. ] / Journal of the GED
8 Alternative Method of Determining Resilient Modulus of Compacted Subgrade Soils Using Free-Free Resonant Column Test /
[ Kim, D. S.;Kweon, G. C.;Lee, K. H. ] / Transportation Research Record