高技术通讯2017，Vol.27Issue(1)：95-102,8.DOI:10.3772/j.issn.1002-0470.2017.01.012
面状不良地质体钻孔雷达响应特征及正演研究
Study on borehole radar response's characteristics and forward simulation for planar unfavorable geo-bodies
摘要
Abstract
According to the common planar unfavorable geo-bodies in borehole radar exploration, the formula of propagating/reflecting distance and two-way-travel-time of borehole radar wave in rock mass with planar unfavorable geo-bodies was derived by analyzing the method of geometry-physical model.The RCS (radar cross section) characteristics for planar unfavorable geo-bodies with various dip angles and various antenna intervals were studied.The regression curve relation between the dip angle of fissure and radar cross section angle was given, and also the influence of antenna interval on the propagating or reflecting distance is discussed.Furthermore, the borehole radar response fields of various fissure model intersected or non-intersected with borehole were analyzed with the finite difference time domain (FDTD) method.The simulation results provide visualized perceptual knowledge and abundant interpretation material for use of borehole radar in geologic survey, which improves the accuracy of geological interpretation.关键词
面状不良地质体/钻孔地质雷达/雷达反射截面(RCS)/正演研究/收发天线距Key words
planar unfavorable geo-bodies/borehole radar/radar cross section (RCS)/forward simulation/antenna interval引用本文复制引用
钟声,王川婴,唐新建,刘艺..面状不良地质体钻孔雷达响应特征及正演研究[J].高技术通讯,2017,27(1):95-102,8.基金项目
国家自然科学基金(41472271,41372317)和973计划(2015CB057903)资助项目. （41472271,41372317）
