WD智能天然源面波数据采集处理系统及其应用试验

Data acquisition and processing system of WD intelligent natural source surface wave and its application test

我国自主研发的WD智能天然源面波数据采集处理系统,改变了迄今为止现场仪器只采集天然微振动波形记录的现状。该系统利用大数据计算、筛选、叠加、归一化等技术,创先性研制出现场仪器在采集微震信号的同时,可直接显示勘探成果的面波频散曲线;信号采集过程中,无需震源,无需人工控制;装置系统安置在地面,10-30min可获得上百米深度地层的面波频散曲线,得知土层软硬。在不同岩性地区的试验结果证实,该系统能快速、准确地进行地层划分,操作便捷,适应性强,为天然源面波勘探广泛应用于工程勘查提供了技术保障。

This paper introduces the data acquisition and processing system of WD intelligent natural source surface wave designed and developed independently by Chinese researchers,which has changed the situation that the in-site instrument can only collect natural microvibration wave form record. Utilizing such techniques as large data calculation,sieving,stacking and normalization,this system has innovatively developed the direct demonstration of surface wave frequency-discretion curves of exploration results simultaneously with the acquisition of the micro seismic signal. During the signal acquisition,seismic source and human control are not needed. The equipment is installed on the ground,and can obtain transverse wave velocity curve of the strata within one hundred meters in 5 - 30 minutes and reflect the hardness of the strata. Test results in areas of different lithologic characters have proved that this system can divide strata rapidly and accurately. With the advantages of easy operation and high adaptability,this system provides technological guarantee for extensively applying the natural source surface wave exploration to the engineering exploration.