Crack and Leakage Detection on Underground Pipelines Using Acoustic Technique

Abstract

In this study, a method of water leakage detection system was investigated using acoustic emission device, AQUA M 300D. It is used to pinpoint leakage sources for underground pipelines system. The leakage is detected by analyzing the feedback frequency, where leakage area produces higher frequency due to the vibration resulting from a high-pressure liquid that flows through the crevice. The method is successful to detect underground pipelines system leakage with 90% accuracy.

Review of the Effect of Climatic Conditions to the Development of Erosion Process in Soils of Azerbaijan

“…The magnitude of K ic diminishes with increasing strain rate and decreasing temperature. The value of K ic normally increases it with reduction in grain size as composition and other micro structural variables are maintained constant [5]. Y = in this shape of crack for pipe, 1.12 is taken for the value of geometry factor a = (crack length)/2 = 0.01/2 =0.005 m K=Yσ√πa K=1.12(373.3) √ (π (0.005))…”