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Effect of Granular Layer Strength and Thickness on Jute Geotextiles Reinforced Rural Road
Abstract In the present study, a 3D finite element (FE) analysis has been carried out to study the stress and strain response of Jute Geotextiles (JGT) reinforced rural road by static analysis. In the rural road, JGT has been placed in between top granular layer and subgrade soil with a thin layer of sand above and below of JGT as Sand-JGT-Sand (SJS) reinforcement. SJS reinforced rural road has been modelled and analysed by using the commercial FE software package ABAQUS 6.12. Two types of reinforced rural road section have been developed to simulate the effect of degradation of JGT. Nonlinear behaviour of the road materials has been taken into account for top granular layer, sand and for subgrade soil, JGT has been discretized using membrane element. Results of FE analysis indicate a significant improvement in the service life of SJS reinforced rural road section, before and after degradation of JGT over unreinforced rural road section. Only a small fraction of the tensile strength of JGT has been mobilized in SJS reinforced rural road sections. Maximum percentage utilization of JGT tensile strength has been found as 4.76 and 2.38% for thin and thick top granular layer, respectively.
Effect of Granular Layer Strength and Thickness on Jute Geotextiles Reinforced Rural Road
Abstract In the present study, a 3D finite element (FE) analysis has been carried out to study the stress and strain response of Jute Geotextiles (JGT) reinforced rural road by static analysis. In the rural road, JGT has been placed in between top granular layer and subgrade soil with a thin layer of sand above and below of JGT as Sand-JGT-Sand (SJS) reinforcement. SJS reinforced rural road has been modelled and analysed by using the commercial FE software package ABAQUS 6.12. Two types of reinforced rural road section have been developed to simulate the effect of degradation of JGT. Nonlinear behaviour of the road materials has been taken into account for top granular layer, sand and for subgrade soil, JGT has been discretized using membrane element. Results of FE analysis indicate a significant improvement in the service life of SJS reinforced rural road section, before and after degradation of JGT over unreinforced rural road section. Only a small fraction of the tensile strength of JGT has been mobilized in SJS reinforced rural road sections. Maximum percentage utilization of JGT tensile strength has been found as 4.76 and 2.38% for thin and thick top granular layer, respectively.
Effect of Granular Layer Strength and Thickness on Jute Geotextiles Reinforced Rural Road
Patra, Souvik (author) / Bera, Ashis Kumar (author)
2019-01-01
14 pages
Article/Chapter (Book)
Electronic Resource
English
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