高损耗电磁波条件下隧道超前探水预测  

Prediction of Advanced Water Exploration in Tunnel under Condition of High Loss Electromagnetic Wave

作　　者：邵建国[1] 梁珠擎 

机构地区：[1]兰州资源环境职业技术学院,甘肃兰州730021

出　　处：《城市道桥与防洪》2018年第9期239-241,共3页Urban Roads Bridges & Flood Control

摘　　要：CFC复频电导法是一项全新的电磁波探水技术,该技术应用中频电磁波,对含水岩体电导率与电容率变化引起的复阻抗的变化进行侦测,适合隧道长距离超前探水。以徐楼铁矿为对象,研究CFC复频电导法在高损耗电磁波条件下的超前探水效果。结果表明,在导电率和介电常数都较高的介质中,CFC仍然可以正常工作。试验成功地探测出徐楼铁矿-217 10-5和-205 10-6出矿巷掌子面前方100 m内含水结构,为后续的施工起到了积极作用。The complex frequency conductance(CFC) method is a new electromagnetic wave water exploration technology. This technology uses the mid frequency electromagnetic wave to detect the change of complex impedance caused by the change of electrical conductivity and permittivity of water bearing rock mass. This technology is suitable for the long-distance advanced water exploration of tunnel. Taking the Xulou Iron Mine as the object, this paper studies the effect of advanced water exploration under the condition of high loss electromagnetic wave by the CFC method. The result shows that the CFC can still work properly in the higher conductivity and dielectric constant of medium. The test successfully detect the containing water structures within 100 m in front of-217 10-5 and-205 10-6 face of the mine in Xulou Iron Mine in order to play the positive role for the subsequent construction.

关 键 词：高损耗电磁波 CFC复频电导 隧道超前预报 

分 类 号：U456[建筑科学—桥梁与隧道工程]