地质雷达检测盾构法隧道管片的技术探讨

Technical discussion on the detection of tunnel tubes of shield method by GPR

作为一种无损检测技术,地质雷达因其快速而高效的检测方法在盾构法隧道管片检测中得到推广。然而由于管片生产工艺等干扰因素的影响,地质雷达管片背后注浆密实度的检测结果往往存在一定程度的误差。本文分析了管片干扰因素的影响,提出了解决方法,为类似的工程检测提供参考及借鉴。

As a non-destructive testing technology,the geological radar has been rapidly popularized in the shield tunnel tube detection because of its fast and efficieny. However,due to the influence of interference factors such as the production process of the tube,there is often a certain degree of error in the detection results of grouting compactness behind the geological radar tube. This paper analyzes the interference factors of pipe sheet,and puts forward a solution to provide a practical reference for similar engineering testing.