دانلود Indian Journal of Science and Technology

Abstract

Background/Objectives:  Understanding  the  mechanics  of  buried  pipes  is  complicated  due  to  the  imprecision  in  the properties of the soil envelope. This paper deals with the study of behavior of flexible Un-Plasticized Poly Vinyl Chloride pipes buried in loose and dense sand backfill. Methods/Statistical  Analysis:  A  design  methodology  is  proposed  for prediction of the performance of pipes using the finite element method ANSYS. The pipe soil interaction under static loading  conditions  is  investigated.  Height  of  the  soil  above  the  pipe  varies  with  the  ratios  of  diameter  of  the  pipe.  The numerical results are compared with the available values calculated using the theoretical approach Spangler Deflection theory. Findings: Provision of geogrid reinforcement above the crown of buried pipe is suggested to minimize the vertical deflection of buried Un-Plasticized Poly Vinyl Chloride pipes.