Document Type : review paper
Authors
1
Ph.D. Student, Water Engineering Department, Ferdowsi University of Mashhad, Iran
2
Associate Professor, Sari Agricultural Sciences & Natural Resources University, Iran
3
Associate Professor, Water Engineering Department, Ferdowsi University of Mashhad, Iran
4
Former Ms.C, Water Engineering Department, Ferdowsi University of Mashhad, Iran
Abstract
Water networks, water pipes in the trenches how to establish, influenced by location, topography and direction of economic factors in the drawings of these projects should be considered. evaluating the behavior of underground structures and the interaction effects on the surrounding context of buried pipes of normal loadings, can do the appropriate analysis to properly design supervisor engineers and designers of these projects provide. Hence this analysis to determine the ducts and transmission lines for the acts of existing forces and effective in settlement some of the issues essential to the deformation of side offers. For this purpose a range of water transmission and distribution project dousti dam was selected. Then, counting different loadings, characteristics of steel pipe used in filling trenches and materials, settlement to review and change the tube and bed by Ansys finite element numerical model and Plaxis was paid. Average vertical displacement along the tube and Ansys, Plaxis respectively against 22.5 and 8.5 mm was. Also in section studied, the surface layer (asphalt) 5 cm had subsided. With increased pressure inside the pipe to the limit, surface subsidence declined. Model due to better soil structure interaction and side impact forces and also in terms of deformation in the side wall of the pipe, the results of the model in Ansys general settlement of the pipe and around, better as Plaxis and is recommended in the design, the results, This model is considered.
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