EH-4电磁成像系统在铁路隧道勘探中的应用

摘要

该文介绍了EH-4电磁成像系统的原理、野外工作方法和资料处理,并将该方法应用于某隧道的前期勘探中,查明了可能会对隧道安全造成危害的断层、破碎带、富水带以及岩溶发育区等,并提出了合理的建议.该方法对中深部的地质异常体勘探效果良好,是铁路隧道勘探比较实用的方法.%The principles, field working method and data processing of EH - 4 electromagnetic imaging system are introduced in the paper, and the method is applied in the early exploration of a tunnel, the security risks of the tunnel, such as faults,fractured zone, water-enrichment zone and the karst development zones are successfully found out, finally reasonable suggestions are put forward. The EH- 4 imaging system works well in exploration of medium-depth geologic anomalies,and it's a good and practical means in the railway tunnel exploretion .