caa a22 4500 467930783 CHVBK 20180406152942.0 cr unu---uuuuu 170328e20060601xx s 000 0 eng 10.1007/s10706-005-1707-8 doi (NATIONALLICENCE)springer-10.1007/s10706-005-1707-8 Experience of Vibrocompaction in Calcareous Sand of UAE [Elektronische Daten] [Azm Al-Homoud, W. Wehr] The study is concerned with the influence of various factors on vibro compaction in calcareous soils, This include effect of carbonate content, and influence of pore water pressures in sand, settlements during vibrocompaction, vibroaccelerations during sand column installation compared to earthquake accelerations and finally the liquefaction design based on average CPT parameters. Previous experiences with calcareous sands and literature review confirm the necessity to apply a correlation factor for calcareous material to the raw cone penetration resistance CPT values obtained in the field. Because of the very fragile grains of the Dubai calcareous sands the penetration resistance will be influenced by crushing and grinding. To accommodate for effect of calcareous sands on measured CPT values, a best fit correlations formula called here "correlation factor” is developed. A parametric dynamic triaxial liquefaction testing programme has been executed on representative samples with loose and dense zones. Representative testing parameters for field conditions and earthquake design accelerations have been applied indicating that ground improvement is necessary. It was observed during the dynamic triaxial tests that the whole soil mass consisting of dense columns and looser zones in between behaves jointly, and therefore compaction control using an average-CPT approach is possible. Springer, 2006 calcareous sand nationallicence cone penetration test nationallicence design criteria nationallicence dynamic triaxial testing nationallicence earthquakes nationallicence liquefaction potential nationallicence relative density nationallicence shells correction factor nationallicence UAE nationallicence vibrocompaction nationallicence Al-Homoud Azm American University of Sharjah, P.O. Box 26666, Sharjah, UAE aut Wehr W. Keller Grundbau Company GmbH (Offenbach), Germany aut Geotechnical & Geological Engineering Kluwer Academic Publishers 24/3(2006-06-01), 757-774 0960-3182 24:3<757 2006 24 10706 https://doi.org/10.1007/s10706-005-1707-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10706-005-1707-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Al-Homoud Azm American University of Sharjah, P.O. Box 26666, Sharjah, UAE aut NATIONALLICENCE 700 1- Wehr W. Keller Grundbau Company GmbH (Offenbach), Germany aut NATIONALLICENCE 773 0- Geotechnical & Geological Engineering Kluwer Academic Publishers 24/3(2006-06-01), 757-774 0960-3182 24:3<757 2006 24 10706 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer