路面雷达检测技术初步研究
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摘要
路用探地雷达的基本原理是向地下发送脉冲形式的高频电磁波。电磁波在地下介质传播过程中,当遇到存在电性差异的地下目标体,如空洞、路面结构层分接口等时,电磁波便发生反射,返回到地面时由天线接收。在对接收到的雷达波进行处理和分析的基础上,根据接收到的雷达波形、强度和双程走时等参数可推断地下目标体的空间位置、几何形态。采用地质雷达对路面脱空缺陷雷达检测进行初步研究,得到了路面脱空缺陷识别方法。
The basic principle of Ground Penetrating Radar(GPR) is transmitting pulse to the underground in form of the high frequency electromagnetic wave.When the electric different exists between underground objects during the transmission of electromagnetic wave in underground medium,such as voids,the layer interface of pavement structure,and so on,the electromagnetic wave is reflected back to the ground surface and received by the antenna.According to the received radar′s waveform,intensity,two-way travel time and other parameters,the underground object′s spatial location and geometric form can be inferred on the basis of that received radar waves are processed and analyzed.In this paper,preliminary research on pavement void defect detection is carried on by using the geological radar,therefore the identification method of pavement void defect is obtained.
The basic principle of Ground Penetrating Radar(GPR) is transmitting pulse to the underground in form of the high frequency electromagnetic wave.When the electric different exists between underground objects during the transmission of electromagnetic wave in underground medium,such as voids,the layer interface of pavement structure,and so on,the electromagnetic wave is reflected back to the ground surface and received by the antenna.According to the received radar′s waveform,intensity,two-way travel time and other parameters,the underground object′s spatial location and geometric form can be inferred on the basis of that received radar waves are processed and analyzed.In this paper,preliminary research on pavement void defect detection is carried on by using the geological radar,therefore the identification method of pavement void defect is obtained.
引文
[1]李大心.探地雷达方法及应用[M].北京:地质出版社,1994.
[2]张玉海.探地雷达的工作原理和检测应用[J].铁道建筑技术,2003,(4):71-72.
[3]钱荣毅,曾校丰.RIS探地雷达系统及公路检测实例[J].物探装备,2003,13(4):258-259.
[4]金峰,张金荣.探地雷达在路面厚度检测中的应用浅析[J].山西建筑,2008,9(26):291-293.
[5]耿玉岭,贾学民,李大鸣,等.公路路面无损检测中的探地雷达技术研究[M].北京:地震出版社,2007.
[6]张彦杰.探地雷达在道路检测中的应用研究[D].长春:吉林大学,2007.
[7]刘恒.路用探地雷达在道路工程中的应用研究[D].大连:大连理工大学,2002.
[8]李志强,王建忠.地质雷达在沥青面层厚度检测中的应用[J].山西交通科技,2008,(2):42-43,55.
[9]蔡迎春,王复明,张蓓,等.路面雷达厚度测试误差分析[J].公路交通科技:应用技术版,2006,(4):24-25.
[2]张玉海.探地雷达的工作原理和检测应用[J].铁道建筑技术,2003,(4):71-72.
[3]钱荣毅,曾校丰.RIS探地雷达系统及公路检测实例[J].物探装备,2003,13(4):258-259.
[4]金峰,张金荣.探地雷达在路面厚度检测中的应用浅析[J].山西建筑,2008,9(26):291-293.
[5]耿玉岭,贾学民,李大鸣,等.公路路面无损检测中的探地雷达技术研究[M].北京:地震出版社,2007.
[6]张彦杰.探地雷达在道路检测中的应用研究[D].长春:吉林大学,2007.
[7]刘恒.路用探地雷达在道路工程中的应用研究[D].大连:大连理工大学,2002.
[8]李志强,王建忠.地质雷达在沥青面层厚度检测中的应用[J].山西交通科技,2008,(2):42-43,55.
[9]蔡迎春,王复明,张蓓,等.路面雷达厚度测试误差分析[J].公路交通科技:应用技术版,2006,(4):24-25.
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