铁道科学与工程学报2018，Vol.15Issue(1)：148-155,8.
地质雷达超前地质预报正演模拟及应用研究
Advance geological forecast forward modeling of geological radar and its application
摘要
Abstract
In order to ensure the quality of tunnel construction and construction safety, it is necessary to forecast the tunnel in the early stage of construction in the course of the tunnel construction in the complex geological conditions, such as gushing water, sudden mud, roof fall and landslide. Based on the FDTD theory, two-layer and three-layer models, single filling water, filling mud, inflatable cave model, fault fracture zone anomaly model were established to simulate the propagation of high-frequency electromagnetic waves in medium with wave impedance difference. By using the geological radar profiles, the distribution characteristics of karst caves and fracture zones of different models were compared and analyzed, which provides a theoretical basis for the practical engineering application. Meanwhile, taking the Liuyuetian tunnel and the Mahua tunnel as example, the characteristics of the geological cave and fault in the geological radar profile were studied.关键词
地质雷达/正演模拟/隧道超前预报/溶洞/断层破碎带Key words
ground penetrating radar/forward modeling/tunnel prediction/cave/fault fracture zone分类
交通工程引用本文复制引用
朱自强,郭有军,刘涛影..地质雷达超前地质预报正演模拟及应用研究[J].铁道科学与工程学报,2018,15(1):148-155,8.基金项目
国家自然科学基金资助项目(41374120) （41374120）
广东交通科技计划资助项目(201502008) （201502008）
