Numerical study of the use of actively-tensioned polymeric strips for reinforced soil walls
Tipus de documentText en actes de congrés
EditorInstitution of Civil Engineers (ICE)
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Polymeric strip reinforced soil walls require a practical method to fix the reinforcement tail-ends in the soil backfill during construction to ensure adequate anchorage and to avoid any slack along the linear reinforcement elements. A number of different techniques are currently used depending on the reinforcement type, arrangement and the contractor. This paper reports the results of a series of numerical simulations that were carried out on an idealized 6 m-high wall with precast partial height facing panels. A different reinforcement pre-tension load was applied to the layers in each simulation case. The results of numerical simulations include the reinforcement axial load distribution, vertical facing load and end-of-construction facing alignment plotted as a function of the reinforcement layer depth location and applied pre-tension load. The results demonstrate that the magnitude of pre-tensioning has a significant effect on wall performance for walls subjected to operational (working stress) conditions at end of construction.
CitacióDamians, I.P., Bathurst, R.J., Lima, J., Lloret, A., Josa, A. Numerical study of the use of actively-tensioned polymeric strips for reinforced soil walls. A: European Conference on Soil Mechanics and Geotechnical Engineering. "Geotechnical Engineering for Infrastructure and Development: proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering". Edinburgh, Scotland: Institution of Civil Engineers (ICE), 2015, p. 3833-3838.