The backfill quality of a pipeline has an important influence on operation. When loose is used, the may be damaged after short term In this study, numerical simulation analysis buried pipes was carried out under three conditions: around pipe, dense backfill, and controlled low strength materials (CLSM) backfill. effects narrow trench backfilling using CLSM force deformation pipelines were studi...

Buried pipeline leakage will affect the thermal characteristics of soil environment, leading to a poor environment. In addition, natural gas possibly produces an explosion and subsequent fire, which has fatal harm. Sustainable detection underground leaks is significant part current research. this study, method for leak buried PE pipelines based on sound source investigated. The simulation softw...

Dysfunctions and failures of buried pipe networks, like sewer are studied in this paper from the point view structural reliability heterogeneity geotechnical conditions longitudinal direction. Combined soil spatial variability Peak Ground Acceleration (PGA) induce stresses displacements. A model has been developed within frame geostatistics a mechanical description soil–structure interaction se...

Water distribution systems are complex interconnected networks that require extensive planning and maintenance to ensure that the drinking water is delivered to the consumers. Lack of adequate water supply in urban areas is due to aging water distribution systems and inadequate maintenance of this critical infrastructure (Bhave 2003). The reliability of such deteriorating systems is continually...

In Australia, when stormwater systems were first introduced over 100 years ago, they were constructed independently of the sewer systems, and they are normally the responsibility of the third level of government, i.e., local government or city councils. Because of the increasing age of these stormwater systems and their worsening performance, there are serious concerns in a significant number o...

Water distribution systems present a significant challenge for structural monitoring. They comprise a complex network of pipelines buried underground that are relatively inaccessible. Maintaining the integrity of these networks is vital for providing clean drinking water to the general public. There is a need for in-situ, on-line monitoring of water distribution systems in order to facilitate e...

Abstract The acoustic propagation characteristics of axisymmetric waves have been widely used in leak detection fluid-filled pipes. related methods and equipment are gradually coming to the market, but their theoretical research obviously lags behind field practice, which seriously restricts breakthrough innovation this technology. Based on fully three-dimensional effect surrounding medium, a c...