摘要
该文介绍了探地雷达检测隧道衬砌质量的原理 ,阐述了数据采集及图像处理过程中引起误差的因素 ,提出减少误差的若干方法。对检测结果验证表明 ,应用探地雷达检测隧道衬砌质量效果良好 ,对衬砌厚度的检测误差一般可控制在 5cm以内 ;对衬砌背后空洞、松散区等回填情况的判释准确率可达 80 %以上。
The principle of applying ground-penetrating radar to quality inspection on the tunnel lining is introduced in the paper and the factors introduced the error in the procedure of data collection and image processing are described.In addition, some methods of reducing error are put forward. As indicated by practical examples,the result of quality inspection on tunnel lining is satisfactory. The error in inspecting thickness of tunnel lining is within 5cm and the accuracy of the backfill analysis of tunnel lining is above 80%.
出处
《勘察科学技术》
2003年第5期56-59,共4页
Site Investigation Science and Technology
关键词
探地雷达
检测
隧道衬砌
误差分析
ground penetrating radar
tunnel lining
quality inspection
error analysis
