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A platform for research: civil engineering, architecture and urbanism
Construction and instrumentation of a highway slope reinforced with high-strength geotextiles
As a part of a highway widening project, the Federal Highway Administration designed and supervised the construction of a permanent 1H:1V geotextil-reinforced slope 15,3 m high. The instrumentation program detailed in this paper has evaluated the performance of this slope, constructed using decomposed granite as backfill material. Several characteristics were unique to the design: the structure was higher than usual geotextil-reinforced slopes, it involved the use of both a high modulus composite and a nonwoven geotextile, and it was constructed using indigenous soils as backfill material. The geotextiles were selected considering not only that adequate tensile strength should be provided but also that expected in-plane drainage capacity would be beneficial in dissipating pore water pressures that could be generated in the fill. An extensive program of instrumentation and construction monitoring was implemented to evaluate its performance. Preliminary monitoring results taken until eight weeks after completion of the fill indicate an excellent overall performance of the slope, that showed small deflections and reinforcement strains during the construction and early post-construction periods.
Construction and instrumentation of a highway slope reinforced with high-strength geotextiles
As a part of a highway widening project, the Federal Highway Administration designed and supervised the construction of a permanent 1H:1V geotextil-reinforced slope 15,3 m high. The instrumentation program detailed in this paper has evaluated the performance of this slope, constructed using decomposed granite as backfill material. Several characteristics were unique to the design: the structure was higher than usual geotextil-reinforced slopes, it involved the use of both a high modulus composite and a nonwoven geotextile, and it was constructed using indigenous soils as backfill material. The geotextiles were selected considering not only that adequate tensile strength should be provided but also that expected in-plane drainage capacity would be beneficial in dissipating pore water pressures that could be generated in the fill. An extensive program of instrumentation and construction monitoring was implemented to evaluate its performance. Preliminary monitoring results taken until eight weeks after completion of the fill indicate an excellent overall performance of the slope, that showed small deflections and reinforcement strains during the construction and early post-construction periods.
Construction and instrumentation of a highway slope reinforced with high-strength geotextiles
Konstruktion und meßtechnische Ausstattung einer Autostraßenböschung mit hochfester Geotextil-Verstärkung
Zornberg, J.G. (author) / Barrows, R.J. (author) / Christopher, B.R. (author) / Wayne, M.H. (author)
1995
15 Seiten, 7 Bilder, 13 Quellen
Conference paper
English
Construction and instrumentation of a highway slope reinforced with high-strength geotextiles
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