地质雷达在三峡工程施工阶段应用研究

长江三峡工程施工阶段面临众多复杂的工程地质问题和施工技术难题。寻找一种快捷、高分辨无损探测手段查明施工中出现的隐蔽的地质缺陷或质量问题，无疑对施工进度和施工质量起到保证作用，采用地质雷达手段，探明了开挖过程中花岗岩体不均匀风化分布范围：圈定出较大断层及风化夹层的延伸范围和产状；并进行了专用高速公路质量检查等，文章结合三个实例介绍应用情况。经现场验证，探测结果与实际情况吻合，应用效果显著。

Application of Ground Penetrating Radar in Three Gorges Project

During the Three Gorges Project, many complicated engineering and geologicalproblems are met, high-resolution harmless detecting method is needed to find buried geological defect or engineering quality problems, to guarantee the project schedule and quality. Georadar is applied in detecting the extension of inhomogeneous weathering of granite mapping the extension and geometry of large faults and weathering alternative layers. checking the engineering quality of expresses. 3 case histories are introduced The detecting results are consistent to the real situations. The application effects are obvious.