摘要
管道漏损是供水系统长久以来面临的难题,漏损检测研究一直备受学者关注。探地雷达因其高效、无损的特点,常被用于管道漏损检测。本文通过漏损模拟试验和正演模拟试验,对海砂介质中的供水管道漏损特征进行研究。结果表明,探地雷达难以检测敷设在海砂介质中的管道,而漏损水流能够降低介质电导率,当管道漏损发生后,湿润区域处的反射能量明显增强,可根据能量反射强度的变化来对海砂覆土中的漏损区域进行定位。
Pipeline leakage is a long-term problem faced by water supply systems,and the research of leakage detection has always attracted the attention of scholars.GPR is often used for pipeline leakage detection because of its high efficiency and non-destructive characteristics.In this paper,the leakage characteristics of the water supply pipeline in the marine sand medium are studied by field leakage simulation test and forward modeling test.The result shows that GPR is difficult to detect the pipeline laid in the marine sand medium,and the leakage water can reduce the conductivity of the medium.When the pipeline leakage occurs,the reflected energy in the wet area is significantly enhanced,and the leakage area can be located according to the change of energy reflection intensity.
作者
叶子豪
申永刚
张燕
李康均
Ye Zihao;Shen Yonggang;Zhang Yan;Li Kangjun(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China;Hydro China Huadong Engineering Corporation,Hangzhou 311122,China)
出处
《科技通报》
2022年第10期59-64,共6页
Bulletin of Science and Technology
关键词
海砂介质
供水管道
探地雷达
漏损检测
正演模拟
marine sand medium
water supply pipeline
GPR
leakage detection
forward modeling
作者简介
叶子豪(1997-),男,硕士生,主要从事供水管网漏损检测研究。E-mail:yezihao0111@zju.edu.cn;通信作者:申永刚(1974-),男,副教授,主要从事管网研究。E-mail:sygdesign@zju.edu.cn。
