f Seismic field measurements applied to static geotechnical problems

The paper tries to illustrate with practical examples that the loading rate during seismic field and laboratory tests is lower than that of many conventional geotechnical field and laboratory tests. Geotechnical parameters are needed for different design situations, such as: 1) construction activity, e. g. pile installation, soil excavation or soil placement, soil compaction, construction of structures or buildings etc. 2) short-term loading due to cyclic or dynamic loading, e. g. earthquakes, wind or water wave action, filling or emptying of silos, building live loads etc., and 3) long-term loading of structure, e. g. settlements of structures and buildings. Figure 1 shows typical loading rates for construction activities and building loads, which extend over many orders of magnitude.