【摘要】 通过广东深圳、东莞等地实测的探地雷达资料,对金属供水管和电力、电信线缆的雷达图像特征进行研究和分析,结果表明:金属供水管的探地雷达图像特征是开口向下的抛物线形状,有明显的一次雷达反射波,无明显的多次反射波,抛物线同相轴顶部对应的是金属供水管的管顶;电力电信线缆的探地雷达图像特征则是明显的极短抛物线形,顶部较窄且下面有较多的多次反射波组,整体呈明显的条带状反射波组特征。实践表明,探地雷达方法能够高效、快捷地探测地下金属供水管和电信、电力线缆,能较精确的区分这两种管线、确定地下管线的水平位置和上顶埋深。更多还原

【Abstract】 This paper based on the ground-penetrating radar measured data in Guangdong,Shenzhen and Dongguan studies and analyzes the GPR image features of the water supply metal tube and electric cable and telecommunications cable.The results show that the GPR image feature of the water supply metal tube is a parabola opening down,which has an obvious radar reflector wave and does not have multiple reflected wave.The parabolic phase axis corresponds to the top of the water supply metal tube;The GPR image features of the electric cable,telecommunications cable are obviously short.The parabolic top is narrower and it has multiple reflected wave below and the whole characteristic is obviously stripshaped reflector wave group.The practice shows that the GPR method can efficiently and quickly detect the underground water supply metal tube and electric cable,telecommunications cable,and it can be more accurate to determine the horizontal position of the underground pipelines and the depth of the top.更多还原