Abstract：Research purposes: If the traditional high—density instrument is used to explore for construction of Shengli Railway Tunnel，there would be lots of difficulties and the exploration work would not be finished in time because of the burying depth and lengh of the tunnel．If the WGMD一6 Distributed 3 D High—density Resistivity lmaging System is used，the field exploration work can be finished in time，because this system is easy to use with the characteristics of full functions，deep effective exploration depth，high observation accuracy and resolution，large volumes of stored data and geological information and hiigh reliability．
Research conclusions: Application of the high—density resistivity method can interpret the geologic section of electric property and provide the powerful support to the type classification of surrounding rock of tunnel after the modification and verification of the exploration results．The application shows the WGMD一6 Distributed 3 D High—density Resistivity Imaging System is an effective exploration means for construction of new railway．
2009, Vol. 26 
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