Proceedings-DFI/EFFC 11th International Conference on Piling and Deep Foundations, 2014, Stockholm, Sweden, (DFI)
Deep Mixing Technology: Comparison between Laboratory and Field Test Result, Different Jobsite Application
Alessandro Bertero, Trevi S.p.A, Italy; Stefano Valagussa, Wesley Schmutzler and Filippo Maria Leoni, TREVIICOS, USA
The Deep Mixing Method (DMM) represents a viable solution to improve the adverse geotechnical properties of foundation soils. Differences and the importance of performing pre-construction laboratory and field tests will be highlighted. Comparative analyses and interpretations between the various lab and field stages, along with accumulated information about soil properties and QC results, allowed fine-tuning of the production parameters throughout almost the entire project. Two projects where the US Army Corps of Engineers selected the Deep Mixing Method (DMM) for the required stabilizations, and a third project completed in Italy, will be illustrated: • the LPV 111 Project (New Orleans - LA – USA); DMM was used for ground improvement/foundation strengthening and consequently stabilize and support the burden of the new levee. • the Rio Puerto Nuevo Project (San Juan - PR - USA); DMM was applied to improve the soils adjacent to a 90” forced sewer main relocation and to improve the soils for the base of a new drainage channel • the new Italian high speed railway project (Florence Italy); DMM technology was applied to realize a a TBM break in/break out, foreseen originally by jet-grouting.
|article #1953; publication #100 (IC-2014)|