000018558 001__ 18558
000018558 005__ 20170118182228.0
000018558 04107 $$aeng
000018558 046__ $$k2017-01-09
000018558 100__ $$aSato, Yoshiyuki
000018558 24500 $$aStudy on Method for Evaluating 3-Component of S-Waves in Sedimentary Layers

000018558 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018558 260__ $$b
000018558 506__ $$arestricted
000018558 520__ $$2eng$$aIn the study of Kyuke et al. (2010), we proposed a method of evaluating the vertical motion of S-waves, which has been an issue in estimating 3-component waves, by assuming the simultaneous incidence of SV-waves and P-waves in the seismic basement. Using deep borehole records down to the seismic basement, we showed that our proposed method could better predict the observed records than the estimated results by the conventional method, which assuming the oblique incidence of SV-waves in the seismic basement. However, in some period bands of the simulation results, the simulation accuracy is slightly inferior. In this study, in order to improve the simulation accuracy, we focused on the estimation method of the incident wave. Generally, only the deepest sensor’s records are used, when the incident wave of the vertical array records was estimated based on the 1-D multiple reflection theory. However, there is a possibility that the estimated incident wave is distorted, because the incident wave can fully predict the record of the deepest sensor, although the assumed ground model might include an error. Thus, in this study, we introduced a new technique to the method of Kyuke et al. (2010). The new technique estimates the incident wave in the seismic basement using all of the array records. Further, this method was extended to the SH incident wave. Then, we simulated the 3-component records of a deep borehole down to the seismic basement. We confirm that these results are more consistent with the observed records than the conventional approaches.

000018558 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018558 653__ $$aEvaluating S-waves motions, P-wave, SV-wave, SH-wave, Simultaneous Incidence

000018558 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018558 720__ $$aSato, Yoshiyuki$$iKobayashi, Kikuji$$iKyuke, Hideo
000018558 8560_ $$ffischerc@itam.cas.cz
000018558 8564_ $$s2525496$$uhttps://invenio.itam.cas.cz/record/18558/files/1699.pdf$$yOriginal version of the author's contribution as presented on USB, paper 1699.
000018558 962__ $$r16048
000018558 980__ $$aPAPER