综合检测技术在面板堆石坝渗漏检测中的应用

经过30多年发展,我国面板堆石坝建设成就显著,但同时也面临着诸如大坝渗漏等病害问题。面板堆石坝坝体材料的非同质和变形的多维度,使得大坝渗漏形式多样,给大坝渗漏检测带来巨大挑战。为此,针对新疆某面板坝,首先应用资料分析和水下机器人声纳扫描普查确定可能渗漏的区域,然后派潜水员进行水下高清摄像详查破损区,最后采用示踪剂进行连通试验验证此前判断。上述综合检测技术在该面板堆石坝渗漏检测中得到成功应用,相关经验可供类似面板坝渗漏处理参考。

Application of integrated leakage detection technology in detection of concrete face rockfill dam

The construction of concrete face rockfill dam (CFRD) in China has had remarkable achievement in the past 30 years. However, various hidden diseases, such as dam leakage, endanger the safety of dams. The non-homogeneity material and multi-dimensional deformation of CFRD make the dam leaking in various forms, bringing along great challenge to the dam leakage detection. In a CFRD in Xinjiang, data analysis and ROV sonar scanning survey were used to determine the possible leakage area. Then divers detected the damaged area in detail by using underwater HD camera. Finally connectivity test was carried out to verify the previous judgement. This technology has been successfully applied in the leakage detection of CFRD, and the experiences could be referred by other leakage detection.