Damage Detection Technology and Pipeline Test site of Urban Water Supply Pipeline

摘要：

　　The problem of water supply pipeline leakage has brought trouble to many cities,Pipeline leakage not only causes the waste of water resources,but also brings security risks.In order to analyze the problems existing in the development of breakage detection technology of the urban water supply pipeline network,this paper investigates the break detcction tecnology and the large-scale pipeline test site.The test pipeline has been established after summarizing the cause and damage of the water supply pipeline.Based on the analysis of the leakage signal,the statistical sound intensity,standard deviation,frequency domain energy distribution intensity and frequency domain energy distribution concentration parameters are selected as the characteristic parameters.An example has been used to verify its accuracy and validity.The results show that the noise intensity is better than other intensity parameters under the influence of noise.The standard deviation is very sensitive to noise and can be used as an evaluation index to reflect the signal noise.The normalized energy parameters of the power spectrum distribution(PSD)and spectral width parameters(ESW)can be used to quantitatively describe the frequency domain characteristics of the signal.

关键词： Urban water supply pipeline Acoustic detection technology Pipeline test site Damage characteristic

作者: Q.F.Hu B.W.Zhou F.Wang C.L.Ning T.Sun

作者单位: Shanghai Institute of Disaster Prevention and Relief,Tongji University,Shanghai,200092,China College of Civil Engineering,Tongji University,Shanghai,200092,China

会议类型: 国际会议

会议名称: The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)

会议地点: 青岛

会议语种:英文

页码: 2243-2251

在线出版日期: 2018-07-22（万方平台首次上网日期，不代表论文的发表时间）