Technique and application for nondestructive inspection of tunnel lining

The quality inspection of tunnel lining is very important,the traditional inspection technique is not only low-efficiency,bad-representation,great chance,but also devastating on the holistic quality of the lining and wall.A new technique for quality inspection of tunnel lining by the methods of geologic radar and ultrasonic wave is introduced.The fundamental principles and methods are explained.A practical example is used to indicate its inspection method and data process.Compared with the traditional method,the hidden danger of tunnel lining can be found fleetly and accurately by this new method.It effectively solves the devastating issue on tunnel lining and generates remarkable social and economic benefit.