高速铁路隧道衬砌裂缝自动化检测硬件系统研究

Research on Hardware System for Automatic Detection of Tunnel Lining Crack on High-Speed Railway

衬砌裂缝是最常见的隧道病害。由于高速铁路列车运行速度较快,衬砌裂缝造成衬砌混凝土掉块会对高速铁路运行造成极大安全隐患。目前国内衬砌裂缝检测还停留在以人工检测为主的阶段,而基于图像处理的检测系统,已经广泛应用于桥梁、公路等工程中,但是由于隧道自身的特殊性,检测系统的发展较为缓慢。在结合高速铁路隧道自身特点基础上,提出一套隧道裂缝自动化检测系统,并对系统工作原理进行阐释,在此基础上对系统内部各项硬件设备进行选型,最后在实验室内完成组装和调试,基本达到了预期的效果。

Lining crack is one of the most common diseases of the tunnel. Because the train runs very fast on high-speed railway, the concrete debris-falling due to tunnel lining cracking may cause serious safety hazard on the operation of high-speed railway. At present in China, however, it is manual inspection that dominates the inspection of tunnel lining crack, while the detection system based on image processing has been widely used in bridges, roads and other projects; but because of the particularity of the tunnel, the development of detection system used for tunnel is relatively slow. In this paper, by combining with the characteristics of high-speed railway tunnel itself, a set of automatic detection system used for detecting the tunnel lining cracks was put forward, and the working principle of this system was analyzed. On this basis, the models of various hardware devices in relation to this automatic detection system were selected. Finally, the assembling and debugging for this system were all completed in laboratory, and the expected result has been basically achieved.