Advancing the awareness, use and performance of slurry and diaphragm wall technologies for design and construction of seepage cutoff, vertical barrier systems, and temporary and permanent earth support works.
Giovanni Bonita, Ph.D., P.E., P.Eng, P.G.
GEI Consultants, Inc.
Giovanni is Senior Vice President of GEI Consultants, Inc. and covers projects nationwide from the Washington, DC office. He has over 24 years of experience in geotechnical and geostructural engineering relating to deep foundations, cutoff walls, permanent and temporary retaining systems, and ground improvement.
Tremie concrete placement simulation using 2 tremie pipes.
Colors represent different concretes batches with very different rheological properties.
The tremie pipes were not raised for this simulation.
Cutoff Walls PowerPoint
Committee-generated base PowerPoint module introduction to cutoff walls for seepage control, including applications and construction.
Structural Walls Manual Update
Task force updating Industry Practice Standards and DFI Practice Guidelines for Structural Slurry Walls (2005) to include recent advancements.
Structural Slurry (Diaphragm) Walls PowerPoint
Committee generated base PowerPoint module introduction to structural slurry walls, including applications and construction.
Outlines basic design and construction for structural slurry walls, including an overview of types of slurry walls, design and construction considerations, detailing, quality assurance and control, and advantages and limitations.
Industry Practice Standards and DFI Practice Guidelines for Structural Slurry Walls (2005) – Highlights the major considerations in selecting structural slurry walls for temporary and permanent use in foundation construction.
Guide to Tremie Concrete for Deep Foundations (2nd Edition) – EFFC-DFI task force developed provide guidance for characterization related to performance, mix design process, and methods used to test fresh concrete.
Associated research report to Guide to Tremie Concrete for Deep Foundations
Guide to Support Fluids for Deep Foundations (1st Edition) – EFFC-DFI task force outlined the state of the art of support fluid practice to improve existing design, testing and practices for deep foundation elements – bored piles (drilled shafts), barrettes (LBEs) and diaphragm wall panels.
Guide to Working Platforms – EFFC-DFI guidance and resources for design and construction of safe working platforms.