无线电波透视法及其应用

Radio wave transillumination and application

无线电波透视法是利用无线电波在钻孔中的发射和接收来确定地下介质特性和地质构造的一种物探方法。当电磁波在地下有耗介质中传播时,遇到岩性不同的分界面就会产生不同的电磁波反射、折射、透射和频散、吸收等,通过研究接收到的电磁波的性质达到探测地下目标物的目的。本文简述了该方法的理论,描述了方法的分类,概述了目前使用的发射天线、接收天线和常用的仪器,总结了野外工作方法和解释方法,最后给出了应用实例说明其应用效果。

Radio wave transillumination uses radio wave to transmitt and receive in drilling hole to determine the characteristics of underground media and geological structure. When electromagnetic wave traveling in underground media with loss, it will lead to different reflecting and refracting, and also frequency scattering and absorbing at the interfaces with different rock feature. The underground target is detected through studying the property of electromagnetic wave received. In this article, the theory is briefly introduced, the classification described, the present used transmitting and receiving antenna and instruments generalized, the operating method in field and explaining method summarized, finally, the applied examples are given to show the effect of radio wave transillumination.