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 Wysłany: Nie 2:48, 08 Maj 2011 Temat postu: hollister To pulsating rock under dynamic response |
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Under microtremor dynamic response of geotechnical
Hongyue (CollegeofCivilEngineeringandArchitecture, ZhejiangUniversityHangzhou, 310027) AbstractThegroundmicro-tremorsignalsareobservedincoastalareaofFujian, mainlyinFuzhou, andthesignalsareana. lyzedbyfastFouriertransformmethod (FFT). Wenotonlystudythecharacteristicsofthestructureoffrequency-spectrumandresponsetOgroundmicro. tremor, butalsoinvestigatethefunctionwithfrequency-dependenceandfrequency-selectionofmicro-tremorfordifferentfoundationsoilstrata. Theresultsareasfollows: First,hollister, itcanreflectvariationofthicknessofc0v. eringlayerandthedurationofpropagationtimeoftheshearwaveinoverburdenlayer. Second,ed hardy vaatteet, thedurationofpropagationtimeoftheshearwaveino, rerburdenlayerandthethicknessofsiteoverburdenlayeraretwooftheimportantreaSOnsthataf. fectthepredominantperiodofthegroundmicro-tremor. Furthermore, softsoilofthegroundenlargespredominantperiodofthegroundmicro-tremorincertaindegree. Third · throughstudyingthecharacteristicsofthestructureoffrequency-spec-trum, wecanestimetethedynamicalcharacteristicsofgroundsoil. Fourth. withtheestablishmentofcorrelationetweenthepredominantperiodofthegroundmicro-tremorandthethicknessofoverburdenlayer,Hollister sale, andthelengthofpropagationtimeofshearwaveintheoverburdenlayer,Oakley juliet, ithelpsrevealandunderstandthecorrelationbetweengroundformationandthemicro-tremorpredominantperiod, andwillalsohelpdeveloptheapplicationofthegroundmicro-tremoranalysistechnigue, Keywords; pulsation; spectralstructure; stratumstructure: dynamicalresponse first author Xu Jiancong men. PhD . Engineers ,ed hardy lippis, October 1967 students. Tel : 013116788203; E-mail: xjcl008 @ zju. edu. cn
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