雷达检测技术在混凝土施工质量检测中的应用——以两河口水电站导流洞施工为例

针对两河口水电站初期导流洞发育有较多断层及绢云母板岩夹层、局部破碎带宽度大、岩体完整性差、开挖过程中局部出现较大地质缺陷超挖的问题,为了确保导流洞运行安全,采用地质雷达检测技术对导流洞施工完成后的混凝土浇筑质量及混凝土与围岩之间的脱空情况进行检测,介绍了地质雷达检测技术方法及检测成果。

Application of Radar Detection Technology in Quality Inspection of Concrete Construction in Diversion Tunnels of Lianghekou Hydropower Station

In the construction of initial diversion tunnels of Lianghekou Hydropower station , a large number of faults and sericite slate sandwich development are found .Serious over-excavation due to geological defects is encountered because of the large band of local crushing and poor integrity of rocks .To ensure the operation safety of diversion tunnels , geo-logical radar detection technology is applied to inspect the quality of concrete construction and voids between the concrete and the surrounding rocks .In this paper , the geological radar detection technology is introduced and the detection re-sults are presented .