摘要
地下供水管道漏损的准确定位问题一直是困扰供水系统和市政建设的难题,它不仅造成水资源的损失,而且对基础设施的破坏较大.准确定位漏点须对漏损管道的声信号进行研究,而漏损管道的声信号与漏损点的声阻抗密切相关.文中从声学的角度出发,分析了漏损点的声阻抗特性,并对漏损管道内流体的声传播进行了研究.
How to locate the position of the underground pipe leakage presisely, has always been a big problem for water supply system and civil construction, eakage not only causes losses of water but also makes great damage to the fundamental establishment. Precise locating needs to detect the acoustic signal of the pipe leaks that has close relationship with the acoustic impedance of the leaks. Therefore, the fluid sound propagation of the leakage pipes is studied ,according to the acoustic impedance characters.
出处
《武汉理工大学学报（交通科学与工程版）》
2005年第6期925-927,931,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
国家自然科学基金项目资助(批准号:60002005)
关键词
管道漏损
声阻抗
声传播
pipeline leakage
acoustic impedance
sound propagation
