Abstract：Research purposes ： As basic data for the design, there is a great difference in the comparison of data precision of geophysical exploration with expected precision of engineering design. Some difficult technical problems are one of causations resulting in the differences. These difficult problems badly restrict development of geophysical exploration technology on railway. Putting forward and discussing these difficult problems is to arouse the experts and colleagues at home and abroad paying attention to and solving these difficult problems.
Research conclusions :(1) The difficult problems can be summed up as contradiction of disturbance with resolution ratio, contradiction of difference of physical properties with resolution ratio and contradiction of depth of exploration with resolution ratio. (2) Due to restriction of the difficult problems, it is notable especially that defection of the application effect on geophysical exploration. (3) If the difficult problems are solved or partly solved, the ability and precision of geophysical exploration will be greatly enhanced in railway engineering geological investigation, and it will be tremendous development on geophysical exploration technology.
Yao Yao. Seismic Wave Field and Seismic Prospecting [M ] . Beijing ： Geological Publishing House，2006.
[2]铁建设[2008]105号，铁路隧道超前地质预报技术指南 [S] .
Railway Construction [ 2008 ] No. 105，Guide for Geological Prediction in Tunnel of Railway [ S].
[3]李坚.铁路隧道物探模式探讨[J].铁道工程学报，2013 (2) ：63 -68.
Li Jian. Discussion of Geophysical Exploration Pattern for the Railway Tunnel [ J ]. Journal of Railway Engineering Society，2013 (2) : 38 - 42.
[4]底青云，王若.可控源音频大地电磁数据正反演及方法 应用[M].北京：科学出版社，2008.
Di Qingyun, Wang Ruo. Controlled Source Audio -Frequency Magnetotellurics [ M ] . Beijing ： Science Press， 2008.
[5]雷旭友.多源多孔对联合反演方法及其在电磁波层析成像中的应用[J].成都理工大学，2010.
Lei Xuyou. A Joint Inversion Based on the Data of Multi - source and Multi - crosshole and Its Application in the Electromagnetic Tomography [ J ] . Chengdu University of Technology，2010.
[6]李坚. 高速铁路煤窑采空区综合物探技术探讨[J].路基工程，2010(增刊）；38 -42.
Li Jian. Discussion on Comprehensive Geophysical Exploration Technology in the Coal Mined - out Area along High - speed Railway [ J ] . Subgrade Engineering, 2010( S) :38 -42.
[7] J. Zhe,S. Greenhalgh,L. Marescot.多道、多波及可变电极组合电阻率成像系统[ J ].地球物理学,2007 (2) :72.
J. Zhe，S. GreenhaIgh, and L. Marescot. Multi -Channel， Full Waveform and Flexible Electtode Combination Resistivity Imaging System [ J ]. Geophysics，2007(2) :72.
[8]董焕成，重磁勘探教程[M].北京：地址出版社，1993.
Dong Huancheng. Gravity and Magnetic Exploration Tutorial [ M] Beijing ： Geological Publishing House， 1993.
2014, Vol. 31 
版权所有 © 2014 《铁道工程学报》编辑部