000009828 001__ 9828
000009828 005__ 20141205153158.0
000009828 04107 $$aeng
000009828 046__ $$k2008-10-12
000009828 100__ $$aDavoodi, Mohammad
000009828 24500 $$aEvaluate Reliability of f-k and SPAC Methods

000009828 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009828 260__ $$b
000009828 506__ $$arestricted
000009828 520__ $$2eng$$aIn recent years, microtremors observation was widely in use for estimation of the sub-surface S-wave velocity (Vs) structure. To evaluate reliability of ambient vibration array methods in Microtremor data analysis and to compare ones results for a same known field, a set of Microtremor array records was performed in selected site in Tehran (Iran capital). Furthermore, the results of in-situ tests like SPT, PS-Logging and DownHole (to 200m depth) and Refraction-Reflection of wave tests exist in the site and Vs profile is available. Therefore, it is possible to compare the results of Microtremor data processing (by two Array methods: f-k and SPAC method) and existing Vs profile (by In-situ tests). This paper focuses on reliability evaluation and precision of array methods with small aperture arrays. By defining 3 errors types (Boundary detect error, Velocity detect error and Total error) relationships between array geometry (station number and distance …), data recording times, input vibration types (human or natural) and quantity or quality of results agreement in depth ranges that show more reliability are studied. As a striking result, the SPAC method is probably more convenient compared to the f–k method, because it gives results as well as the f–k method by using less recording stations and with shorter dimensions arrays. However, the topic would deserve thorough further investigations.

000009828 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009828 653__ $$aSite Characterization, Geotechnical Earthquake Engineering, Site Effects, Ambient Vibration Array Methods

000009828 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009828 720__ $$aDavoodi, Mohammad$$iHaghshenas, Ebrahim$$iEsfahanizadeh, M.$$iMirjalili, Abolfazl$$iAtashband, Shaham
000009828 8560_ $$ffischerc@itam.cas.cz
000009828 8564_ $$s1153192$$uhttps://invenio.itam.cas.cz/record/9828/files/02-0161.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 02-0161.
000009828 962__ $$r9324
000009828 980__ $$aPAPER