探地雷达在混凝土渠渗漏检测中的应用

Application of Ground Penetrating Radar for the Concrete Channel Leakage Test

通过沙特某取排水项目工程实例,介绍了探地雷达在混凝土渠渗漏检测工作中的应用。基于探地雷达工作原理及项目特点,对检测方法、典型信号特征的识别、渗漏判定标准等进行深入研究。在现场开展渗漏模拟试验,对探地雷达的适用效果进行现场验证。对现场实测数据进行分析,判定混凝土渠漏点位置。抽选部分漏点,对其周边土体进行钻孔取芯,验证结果表明探地雷达在混凝土渠渗漏检测工作中具有较高的精准性。该检测技术对工期紧、规模大的类似渠道工程项目具有积极的借鉴意义。

Through th case study of a water intake and drainage project in Saudi Arabia,it introduces the application of ground penetrating radar for the concrete channel leakage detection.Based on the working principle of ground penetrating radar and the characteristic of the project,it makes further research on the detection method,the recognition of typical signal feature,the leakage criterion.The simulation test for the leakage of concrete channel is conducted on site,it aims at verifying the feasibility of this method.It analyzes the field data and judge the leakage location of the concrete channel.Select some leakage areas from the judgement result,and drill the soil core sample,it proves this leakage detection method has a high accuracy when it is applied on the concrete channel in this condition.This leakage detection technology is positive to apply on other similar concrete channel project which has great scale and tight project schedule.