A geogrid-reinforced earth-retaining wall using full-height precast concrete wall facing was instrumented in tucson, arizona. Construction on the wall was completed in october 1985. Instruments were monitored during construction, at intervals during the year after construction, and once a year thereafter. Tensile strains measured during construction indicate that during compaction of the wall fill, a tension force was induced in the geogrids that is low in comparison with safe working loads. Measurements of tension in the geogrids arecompared with tensions computed by limit equilibrium analysis. In general, this comparison is satisfactory. In addition, a study of measured geogrid response over a 4-year period reveals that rates of creep strain are not appreciable. This paper appears in transportationresearch record no. 1330, Behavior of jointed rock masses and reinforced soil structures 1991
Samenvatting