EH4电磁成像系统在隧道工程勘察中的应用

EH4电磁成像系统由美国著名Geometrics和EMI一起研究开发,其系统是一种双源型的。目前,广泛应用于金属矿产的勘察、铁路,公路隧道的勘察、以及水资源的勘察等等。本文介绍了EH4的原理、工作方法、以及数据处理。并结合具体隧道中的应用效果,说明该方法可以对沿轴线方向大型断裂地质构造分布状况、岩体完整性及岩层富水带的埋深和规模进行超前的宏观预测。

Application of EH4 Electromagnetic Image System to Survey of Tunnel Engineering for Expressways

EH4 electromagnetic image system, developed jointly by the famous American Geometrics and EMI, electromagnetic system is a kind of double source type. At present, it is widely used in metal minerals prospecting, railway, highway tunnel survey, and water resources survey and so on. This paper introduces the working principle of the EH4, working method and data processing. Combined with the concrete tunnel effect in application, it shows that the method can be along the axis direction of large fracture distribution of the geological structure, rock mass integrity and rich strata buried depth and scale of the hose to macro forecast ahead of his time.