摘要
隧道的勘探技术研究,一直是我国铁路隧道勘探研究的热点和难点,传统钻探及调绘等手段在隧道勘探中有较大的局限性,采用新方法技术是提高隧道勘察水平的重要手段之一。结合玉(溪)磨(憨)线特长隧道—大金山隧道音频大地电磁测深工作,阐述了音频大地电磁测深的方法原理、资料采集、地形校正等内容。以音频大地电磁法为主、结合钻探及地质调绘等手段,宏观上查明隧道的地质条件,为深孔钻探孔位布置和隧道设计提供了详实的基础资料。
The exploration technology of tunnel has always been a hot and difficult problem for railway tunnel exploration.The traditional drilling and geological mapping methods have great limitations in the railway tunnel exploration. Using new technology is an important factor to improve the comprehensive survey of railway tunnel. Combined with the technology of audio-frequency magnetotelluric sounding in Dajin Mountain extra-long tunnel of Yuxi-Mohan Line,this paper discusses the method and principle of audio-frequency magnetotelluric sounding,data acquisition,terrain correction and so on. The audiofrequency magnetotelluric method combined with drilling and geological mapping method can macroeconomically identify the geological condition of the tunnel,which can provide a basis for the borehole layout of deep hole and tunnel design.
出处
《铁道建筑技术》
2015年第10期45-48 77,共5页
Railway Construction Technology
基金
四川省交通科技项目资助(110102033)
关键词
高频大地电磁测深
铁路隧道勘探
地形校正
high-frequency magnetotelluric sounding
railway tunnel exploration
terrain correction
