The new DAT WideLog's enhanced multiple capabilities allow for a single data logger in situations that traditionally require more than one datalogger, such as jet grouting, cement injections, grouting, drilling, MWD tests, CFA, deep mixing, soil mixing,
vibroflotation, diaphragm walls, hydromills, and Lugeon and Lefranc tests.
There are different methods practiced to improve the engineering properties of such soils such as stabilization, grouting, removal and replacement, removal and recompaction, preloading,
vibroflotation, stone columns, and dynamic compaction and reinforcement using geosynthetics [3-8].
For the present study, data acquired before and after the ground compaction process performed via vibroflotation, were inverted according to the Full Velocity Spectrum (FVS) approach (Dal Moro, 2014) and obtained [V.sub.S] values also compared with the information obtained via penetrometer tests.
Ground compaction was performed by means of a vibroflotation process down to a depth of 15 m.
Figure 8 reports the N30 (number of blows per 30 cm penetration) values before and after the vibroflotation process.
The key focus area of the company includes piling, jetgrouting, CFA, diaphragm walls, drilling, grout injection, soil mixing,
vibroflotation, Lugeon tests, mineral investigation.
DAT instruments is an Italian company that specializes in the design and production of instruments and software used in special foundation jobs such as piling, jet grouting, CFA, diaphragm walls, drilling, grout injection, soil mixing and
vibroflotation. Founded in 2001, DAT instruments currently serve customers in more than 20 countries on 5 continents with a range of products, both standard and custom, that assist in the planning, construction and maintenance of multi-site operations.