Design and analysis of geosynthetic reinforced soil bridge abutments

摘要

Design and analysis of geosynthetic reinforced soil bridge abutments are being presented in the Masterudof science thesis. Considering recommendations from many scientific papers and technicaludspecifications from the field of geosynthetic reinforced soil structures, some theoretical bases anduddesign methods are being presented and properly applied to the Eurocode standards where possible, byudtaking into consideration ultimate (ULS) and serviceability limit states (SLS). In the second part of theudthesis first bridge with geosynthetic reinforced soil bridge abutments in Slovenia, built in Novemberudand December 2014 in Žerovinci in municipality of Ormož, has been designed using methods andudequations, presented in this thesis. Some laboratory tests have been previously evaluated atudGeomechanical laboratory of Slovenian national building and civil engineering institute in order toudobtain basic characteristics of foundation soil, building materials and their interaction, needed for theudproper design of the abutments. Some field monitoring also took place during and after construction ofudthe abutments in order to directly compare required tensile strength of the geosynthetic layers,udconsidering laboratory test results, calculation results and results from field measurements. To obtainudproper stress – strain relation for the typical reinforced soil it is of main importance to evaluateudlaboratory static load test on the specimen with exactly the same building materials – compactedudsandy-gravel material and intermediate geosynthetic layers – as used at the construction site.udGeosynthetic reinforced soil bridge abutments design method, presented in the master of scienceudthesis, along with the laboratory static load test results for typical reinforced soil could be properlyudused in civil engineering design practice.