Numerical analysis on Buried pipes protected by combination of geocell reinforcement and rubber-soil mixture

Tavakoli Mehrjardi, Gh.; Moghaddas Tafreshi, S.N.; Dawson, Andrew

Abstract

A numerical simulation of laboratory model tests was carried out to develop an understanding of the behaviour of pipes in a trench prepared with 3-Dimensional reinforced (namely "geocell-reinforced" in the present study) sand and rubber-soil mixtures, under repeated loadings. The study reports overall performance of buried pipes in different conditions of pipe-trench installations and the influence of pipe stiffness on backfill settlements, stress distribution in the trench depth and stress distribution along the pipe's longitudinal axis. Good agreements between the numerical results and experimental results were observed. The results demonstrate that combined use of the geocell layer and rubber-soil mixture can reduce soil surface settlement and pipe deflection and eventually provide a secure condition for buried pipe even under strong repeated loads.

Citation

Tavakoli Mehrjardi, G., Moghaddas Tafreshi, S., & Dawson, A. (2015). Numerical analysis on Buried pipes protected by combination of geocell reinforcement and rubber-soil mixture. International Journal of Civil Engineering, 13(2),

• Journal Article Type: Article
• Acceptance Date: May 30, 2015
• Publication Date: Jun 10, 2015
• Deposit Date: Jun 28, 2016
• Publicly Available Date: Jun 28, 2016
• Journal: International Journal of Civil Engineering
• Electronic ISSN: 1735-0522
• Publisher: Springer Verlag
• Peer Reviewed: Peer Reviewed
• Volume: 13
• Issue: 2
• Keywords: Numerical analysis, Geocell, Buried pipes, Rubber-soil mixture, Stress transfer
• Public URL: https://nottingham-repository.worktribe.com/output/754831
• Publisher URL: http://ijce.iust.ac.ir/article-1-1179-en.html
• Contract Date: Jun 28, 2016