大地电磁法(EM3D)技术在隧道不良地质物探勘察中的应用研究

Technical Application of Electromagnetic Magnetotelluric Method (EM3D) in Poor Geological Exploration of Tunnels

为了分析大地电磁法在地质物探的发展现状,在工程施工不良地质隧道物探中,通过运用电磁法收集的地质数据,经过数据处理和数据反演,并结合有针对性的地质测绘、地质水文调查等方法,整理数据后综合分析研判隧道不良地质情况,最终形成地质综合物探视电阻率反演成像图,并进行详细的地质成果描述,为大跨径隧道、不良地质施工提供科学准确的参考依据。

In order to analyze the current development status of EM3D in geological geophysical exploration,geological data collected by electromagnetic method is used in the geophysical exploration of unfavorable geological tunnels in engineering construction.After data processing and inversion,combined with other targeted geological surveying and geological hydrological surveys,the data is sorted out and comprehensively analyzed to determine the unfavorable geological conditions of the tunnel.Finally,a geological comprehensive exploration resistivity inversion imaging map is formed,and detailed geological results are described,providing scientific and accurate reference basis for large-span tunnels and unfavorable geological construction.