【摘要】 地质雷达由于采用了一定的介质作为探测方法,很容易掌握混凝土衬砌结构的厚度、衬砌周围回填及空隙情况等,为工程技术评价提供依据。针对重庆市巫山县境内某隧道地质条件复杂等特点,阐述了探地雷达探测技术的工作原理及其特点,并对隧道衬砌厚度测定、衬砌及衬砌背后缺陷检测以及钢筋位置检测,结果表明:地质雷达检测在隧道施工中起着重要作用,其具有广泛的实用性和应用前景。更多还原

【Abstract】 The thickness of tunnel lining and the status of backfill and interspaces around the lining which are crucial to the engineering evaluation can be easily detected by the use of GPR,due to its detecting requirement of a media. Regarding to a tunnel in Wushan county,Chongqing with complicated geological conditions,the operation principles and characteristics of GPR detection were discussed in detail at aspect of detection of the lining thickness,defect detection of the lining and the back of the lining,as well as the detection of the reinforcing steel bars.The results indicate that GPR plays an important role in the construction of the tunnel,it has broad practicability and promising application prospect.更多还原