• DFI Europe
  • DFI India
  • DFI Trust

Slurry Wall

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.
gbonita@geiconsultants.com
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.

Slurry Wall Events

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.

Initiatives

Cutoff Walls Guidelines

Outlines fundamental background information on the selection of cutoff walls/seepage barriers.

Structural Slurry Walls PowerPoint

Committee generated base PowerPoint module introduction to structural slurry walls, including applications and construction.

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

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.

Committee Research

Diaphragm Walls as Permanent Basement Walls in Regions of High Seismicity – outlines the requirements for extension of this practice to more common use in regions of high seismicity.

Fundamentals

Industry Practice Standards and DFI Practice Guidelines for Structural Slurry Walls (2005)

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.