基于声(冲击弹性)波的隧道衬砌检测技术及应用

Technology and Application of Tunnel Lining Detection Based on Acoustic(Impact Elasticity)Wave

铁路隧道衬砌质量关系到列车行车安全,其无损检测方法目前仍以地质雷达法、敲击法、回弹仪法为主。现有检测技术存在检测精度低、结果受作业人员经验影响大、检测范围受限等诸多问题,严重制约了对隧道衬砌质量的正确评估和把控。为提升无损检测技术在隧道衬砌检测中的有效性,基于声(冲击弹性)波开发了针对隧道衬砌厚度、缺陷、强度等方面的检测新技术,同时引入AI技术,实现隧道衬砌检测结果分析自动化,消除了人为因素干扰。同时,通过轻量化三维图形技术实现检测数据的三维可视化管理。该技术已在数百座铁路隧道中应用,其有效性与优越性得到充分验证。

The lining quality of railway tunnel is related to the safety of train operation.At present,the nondestructive testing methods are mainly still the geological radar method,knocking method and resiliometer method.The existing detection technology has such disadvantages as low detection accuracy,the result influenced by the experience of operators and limited detection range,which seriously restricts the correct evaluation and control of tunnel lining quality.In order to improve the effectiveness of nondestructive testing technology in tunnel lining detection,a new detection technology for the thickness,defect and strength of tunnel lining is developed based on acoustic(impact elasticity)wave.Meanwhile,AI technology is introduced to automate the analysis on the detection results of tunnel lining and eliminate the interference of human factors.In addition,3D visualization management of detection data is realized by lightweight 3D graphics technology.The technology has been applied in hundreds of railway tunnels,whose effectiveness and advantage have been fully verified.