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GeoConSol
Geotechnical & Tunnel Consultants

A consultant is a universal observer who can look at a problem outside the environment in which the problem came to be, thereby creating a solution that was never possible before.  Fernando Flores

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EXPERT / FORENSIC SERVICES
DIFFERING SITE CONDITIONS
-->DSC Technical Principles
-->DSC Standards for Entitlement
-->DSC Independent Review
-->DSC Case Histories
-->Case History of a Bogus Expert
GEOTECHNICAL / CONSTRUCTION
-->Rock Testing/Boreability
-->Impact Hammer Feasibility
ARTICLES / PUBLICATIONS
TUNNELS / TUNNELING
-->Tunnel Boring
-->Excavation Improvement
-->Microtunneling/Pipe-Jacking
-->Selection of TBMs & MTBMs
-->Forensic Investigations
-->Safety
-->Detection of Covert Tunnels
CLIENTS
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Peter J. Tarkoy
herrenknecht soil head

Tunnel & Underground
Forensic Investigations 

Experience With: 

  • Tunnel - collapses floods, substandard excavation performance 

  • Concrete (jacked) pipe failures

  • Investigation of machine failures and performance issues

    • component failures, substandard performance & cutter life

    • hydraulic dredge substandard performance

    • Causes of over-break, personal injuries and wrongful death, accidents, failure of explosives

Our expert witnesses have been Court (Federal, State, County, and EBOCA) qualified:

  • Geotechnical engineering & interpretation, underground excavation, differing site conditions;

  • Differing Site Conditions (DSC) presentation and defense;

  • Geology, Exploration, & Geotechnical Baseline reports,

  • Tunnel, Tunnel Boring, & Microtunneling Excavation,

  • Baseline Construction Performance, Excavation Productivity, & Time-Progress Analyses, Scheduling

  • Underground, Heavy Construction, Blasting & Vibrations,

  • Construction safety, personal injury issues in construction,

  • Machine Failures, Machine Underperformance, Tunnel Case Histories

  • Slurry wall excavation;

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