CAJ | 학술논문

浅层面波法调查表层速度结构多用于非沙漠区的工程与环境领域.本文利用多道面波分析(MASW)技术针对塔克拉玛干沙漠地区特殊地质情况,对所采集的浅层多道面波资料进行处理分析得到沙漠区表层速度结构;同时对该地区所获得的地震大炮记录上的面波进行了处理、分析和对比,探讨了沙漠区利用大炮面波法调查表层结构的可行性.实践表明,多道面波资料可以得到很好的浅层速度结构,而大炮记录则可得到详尽的深层地质结构,将二者相结合便得到测区表层60m范围内的速度结构信息,也证明了在沙漠区利用大炮面波记录提取表层地下介质结构是可行的.
천층면파법조사표층속도결구다용우비사막구적공정여배경영역.본문이용다도면파분석(MASW)기술침대탑극랍마간사막지구특수지질정황,대소채집적천층다도면파자료진행처리분석득도사막구표층속도결구;동시대해지구소획득적지진대포기록상적면파진행료처리、분석화대비,탐토료사막구이용대포면파법조사표층결구적가행성.실천표명,다도면파자료가이득도흔호적천층속도결구,이대포기록칙가득도상진적심층지질결구,장이자상결합편득도측구표층60m범위내적속도결구신식,야증명료재사막구이용대포면파기록제취표층지하개질결구시가행적.
Shallow surface wave methods are mostly used for investigation of the surface velocity structure in environmental and engineering geophysics in non-desert areas. For the special geological features of the Takelamagan Desert area, we use the multi-channel analysis of surface wave (MASW) method to process multi-channel shallow surface wave records to determine the near surface velocity structure in the desert area. We also process, analyze, and compare the surface waves in many-trace records extracted from the oil exploration shot gathers in the area. We show that the MASW method can determine detailed shallow velocity structure in desert areas and the many-trace records can be used to get detailed deep geological structure. The combination of the two different datasets can obtain the exact velocity structure upper 60 m depth in the survey area.