CAJ | 학술논문

针对地壳浅部介质横向变化大的特点,用瞬态瑞利波SASW与MASW方法对河北夏垫断裂进行了探测与数据处理分析.分别用时间域互相关法和频率域f-k分析法提取频散曲线,然后进行反演得到横渡速度结构.实验结果表明瞬态瑞利波法在应用中便捷、灵活,对于探测地表介质中非均匀异常体及断裂向浅部的延伸情况具有独特的应用前景.
침대지각천부개질횡향변화대적특점,용순태서리파SASW여MASW방법대하북하점단렬진행료탐측여수거처리분석.분별용시간역호상관법화빈솔역f-k분석법제취빈산곡선,연후진행반연득도횡도속도결구.실험결과표명순태서리파법재응용중편첩、령활,대우탐측지표개질중비균균이상체급단렬향천부적연신정황구유독특적응용전경.
In accordance with the characteristic of great lateral variation in shallow crust,SASW and MASW are used to detect the xiadian fault.In data processing we use the methods of time-domain cross-correlation and f-k transformation to derive dispersion images respectively,then get the S-wave velocity structure by inversion.The result of the test shows transient rayleigh wave method is compact,convenient and reliable.Especially in lateral inhomogeneous media,by the variability of near-surface velocity structure carl be revealed effectively and it will have a special application prospects in detection of surface anomalous bodies and downward extension of near-surface faults.