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A platform for research: civil engineering, architecture and urbanism
Effect of Hybrid Geosynthetic Layers on Soil Walls with Marginal Backfill Subjected to Rainfall
The objective of this paper is to examine the influence of hybrid geosynthetic layers in dissipating pore water pressures in geogrid reinforced soil walls with marginal backfill subjected to rainfall. In this regard, numerical modelling was carried-out using a finite-element based software SEEP/W by subjecting the soil wall to different rainfall intensities, ranging from 10 mm/hr to 80 mm/hr. For selected sections, static global stability of the soil wall with and without hybrid geosynthetic layers was carried-out using SLOPE/W. The number of hybrid geosynthetic layers was varied to arrive at the optimum number of layers needed to maintain stability against different intensities of rainfall simulated, and the results were compared with equivalent number of conventional sand drainage layers. The results indicated that, the hybrid geosynthetic layers placed at bottom half were more effective in reducing the pore water pressures developed during rainfall, and in improving the stability of the reinforced wall section than identical number of sand layers.
Effect of Hybrid Geosynthetic Layers on Soil Walls with Marginal Backfill Subjected to Rainfall
The objective of this paper is to examine the influence of hybrid geosynthetic layers in dissipating pore water pressures in geogrid reinforced soil walls with marginal backfill subjected to rainfall. In this regard, numerical modelling was carried-out using a finite-element based software SEEP/W by subjecting the soil wall to different rainfall intensities, ranging from 10 mm/hr to 80 mm/hr. For selected sections, static global stability of the soil wall with and without hybrid geosynthetic layers was carried-out using SLOPE/W. The number of hybrid geosynthetic layers was varied to arrive at the optimum number of layers needed to maintain stability against different intensities of rainfall simulated, and the results were compared with equivalent number of conventional sand drainage layers. The results indicated that, the hybrid geosynthetic layers placed at bottom half were more effective in reducing the pore water pressures developed during rainfall, and in improving the stability of the reinforced wall section than identical number of sand layers.
Effect of Hybrid Geosynthetic Layers on Soil Walls with Marginal Backfill Subjected to Rainfall
Bhattacherjee, Dipankana (author) / Viswanadham, B. V. S. (author)
Geo-Chicago 2016 ; 2016 ; Chicago, Illinois
Geo-Chicago 2016 ; 362-371
2016-08-08
Conference paper
Electronic Resource
English
Effect of Hybrid Geosynthetic Layers on Soil Walls with Marginal Backfill Subjected to Rainfall
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