西枝江地下输水箱涵渗漏综合无损检测新技术

New Comprehensive Non-destructive Testing Technology for Leakage of Underground Water Conveyance Culvert Structure in Xizi River

针对深圳市东江水源工程西枝江输水箱涵,利用冲击映像法确定箱涵伸缩缝位置,采用高密度面波和渗漏噪声监控法相互印证判断渗漏区域。实验结果确定了试验段范围内存在的一条伸缩缝,并可查明其漏水情况,证明这种综合无损检测新技术可以有效、无损地判断渗漏区域。同时,本项研究工作还提出了一种箱涵防渗漏处理方案,现场实施效果良好。

The comprehensive non-destructive leakage testing technology for the underground water conveyance culvert structure in Xizi River is introduced.The impact imaging method is used to determine the position of expansion joints.The high-density surface wave method and the leakage noise monitoring method are used collaboratively to determine the leakage area.The test results show that there is an expansion joint in the test area and the leakage situation can be found out.It proves that the new comprehensive non-destructive testing technology can determine the leakage area effectively and non-destructively.Also,a new culvert leakage treatment scheme is proposed and the practical application shows good results.