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简要介绍地质雷达的工作原理,运用GPRMAX2D探地雷达(GPR)正演模拟软件对巷道衬砌背后的脱空和钢筋等进行了二维正演模拟,得出了不同缺陷的雷达探测图像特征,并应用于煤矿巷道工程实例,对巷道衬砌的雷达探测图像进行了分析。
This paper briefly introduces the working principle of GPR, and uses GPRMAX2D GPR forward simulation software to carry out two-dimensional forward modeling of cavitation and rebar behind the tunnel lining. The radar detection image features of different defects are obtained. It is applied to mine roadway engineering example and the radar detection image of roadway lining is analyzed.