中日韩运营铁路隧道检测技术现状及发展趋势

我国运营铁路隧道总体规模巨大，传统隧道检测方式难以满足大规模运营隧道检测及时、高效的需求，融合隧道检测新技术、优化运营铁路隧道既有检测方式是运营铁路隧道检测降本增效的关键。基于以上问题，对中国、日本及韩国隧道检测技术进行调研，从图像类、探测类以及集成综合类3个方面梳理中日韩隧道检测技术发展现状。提出运营铁路隧道检测技术以快速综合检测、数据智能化判释、隧道状态协同评估为主的发展趋势，分析适用于我国运营铁路隧道实际情况的隧道检测模式，提出应重视铺轨前的隧道检测，确保隧道初始状态信息的全面和真实性，加快建设隧道状态信息库，基于快速、综合、智能化的隧道检测技术体系，实现运营期铁路隧道的动态周期检测，以实现运营隧道降本增效。

State of Art and Development Trend of Tunnel Inspection Technology in China,Japan, and South Korea

Traditional tunnel inspection methods struggle to satisfy the demands of large scale tunnel inspection in a timely and effective manner in China owing the large number of operational railway tunnels. In this study, a cost effective and efficient railway tunnel inspection is realized by developing the new tunnel inspection technology and optimizing the existing detection methods. First, the tunnel inspection technologies used in China, Japan, and South Korea are investigated, and the state of the art of the tunnel inspection technology development is introduced from the aspects of image inspection technology, non destructive detection technology, and integrated inspection technology. Based on the current situation, the development trends in operational railway tunnel inspection technology, rapid comprehensive inspection, intelligent data interpretation, and collaborative assessment of tunnel status are proposed, and the tunnel inspection mode applicable to the actual situation of operational railway tunnels in China is analyzed. Results show that tunnel inspection should be focused upon before track laying. Comprehensive and real tunnel initial state information should be ensured, and the construction of tunnel state information database should be speeded up to realize the dynamic cycle detection of railway tunnels in the operation period, reduce cost, and increase efficiency based on rapid, comprehensive, and intelligent tunnel detection technology system.