CUED Publications database

Dem analysis of soil-pipeline interaction in sand under lateral and upward movements at deep embedment

Yimsiri, S and Soga, K (2006) Dem analysis of soil-pipeline interaction in sand under lateral and upward movements at deep embedment. Geotechnical Engineering, 37. pp. 83-94. ISSN 0046-5828

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Abstract

The soil-pipeline interactions under lateral and upward pipe movements in sand are investigated using DEM analysis. The simulations are performed for both medium and dense sand conditions at different embedment ratios of up to 60. The comparison of peak dimensionless forces from the DEM and earlier FEM analyses shows that, for medium sand, both methods show similar peak dimensionless forces. For dense sand, the DEM analysis gives more gradual transition of shallow to deep failure mechanisms than the FEM analysis and the peak dimensionless forces at very deep depth are higher in the DEM analysis than in the FEM analysis. Comparison of the deformation mechanism suggests that this is due to the differences in soil movements around the pipe associated with its particulate nature. The DEM analysis provides supplementary data of the soil-pipeline interaction in sand at deep embedment condition.

Item Type: Article
Uncontrolled Keywords: DEM analysis FEM analysis Numerical simulations Soil-pipeline interactions
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:32
Last Modified: 27 Nov 2014 19:21
DOI: