Authors : Fariborz Rahimi Klarijani and Nima Ranjbar Mali Darreh
Abstract: Water networks and main underground drinking water transmission and distribution pipelines are among the infrastructures of urban areas and giving attention to the problems of these pipelines is a priority management program. One of the most important factors in the design of water channels is the analysis of external forces affecting the pipe and its surrounding texture and finally the pipe deformation. Many factors affect the design of water transmission pipelines, one of these factors is controlling the pipe diameter change or pinch flat. Behavior assessment of culverts and interaction analysis of the bed around culverts under in normal loadings can provide appropriate analysis to carry out the right design of such projects. In this study, 5 different methods in terms of the materials filling around the pipeline were studied and laboratory results obtained were compared with American Water Works Association (AWWA) and modeling by ABAQUS finite elements software. The results showed that as the soil around the pipe is filled with dense and harder materials, the latitude pipe diameter change or the pinch flat will be decreased where the results were consistent with the regulation and software.
Fariborz Rahimi Klarijani and Nima Ranjbar Mali Darreh, 2017. Comparing Experimental and Software Results of Changing the Water Transmission Pipe Diameter under the External Load of Surrounding Soil (Case Study: Pipes with a Diameter of 2400 mm). Journal of Engineering and Applied Sciences, 12: 2029-2038.