探地雷达连续测量模式下触发方式讨论  

Trigger Modes in the Continuous Measurement of Ground Penetrating Radar

作　　者：许泽善 蔡俊雄 戴泉水 唐发伟 熊秀权 Xu Zeshan;Cai Junxiong;Dai Quanshui;Tang Fawei;Xiong Xiuquan(Sichuan JianYe Project Quality Survey Co., Ltd., Chengdu Sichuan 610213, China;Shenzhen Water Planning and Design Institute Co., Ltd., Shenzhen Guangdong 518022,China;Fujian Construction Engineering Quality Inspection Center Co., Ltd. Xiamen Branch, Xiamen Fujian 361011, China)

机构地区：[1]四川省建业检验检测股份有限公司,四川成都610213 [2]深圳市水务规划设计院股份有限公司,广东深圳518022 [3]福建省建筑工程质量检测中心有限公司厦门分公司,福建厦门361011

出　　处：《工程地球物理学报》2020年第4期522-529,共8页Chinese Journal of Engineering Geophysics

摘　　要：由于时间采集模式简单、容易操作,所以在隧道衬砌检测的应用中通常采用时间采集模式,再通过做距离归一化处理转换为标准的道间距计算里程位置。这种方法的检测结果很大程度依靠天线移动速度的控制,在速度控制不均时,一方面会使雷达图像的大小偏离实际,另一方面会导致距离错误。对探地雷达的时间和距离两种触发模式进行了模拟对比检测实验,结果证明采用距离触发模式可有效避免时间触发模式存在的一些问题,更适用于隧道衬砌检测。For its simplicity and operability,the time acquisition mode is usually adopted in the tunnel lining detection application.The mile age position is calculated by performing the distance normalization processing to convert to the standard track pitch.The detection result of this method largely depends on the control of the moving speed of the antenna.When the speed control is uneven,the size of the radar image would deviat from the actual size and lead to the distance error.We carries out the simulation and comparison test on time and distance triggering modes of ground penetrating radar.The results show that the distance triggering mode can effectively overcome some current problems in the time triggering mode,and it is more suitable for tunnel lining detection.

关 键 词：时间触发模式 距离归一化处理 天线移动速度 测距轮触发模式 

分 类 号：P631.3[天文地球—地质矿产勘探]