Geotechnical

Preloading of Varved Clay Soils

This part of our ongoing series about building settlement and geotechnical engineering strategies to mitigate settlement. Mike Talbot is OTO’s geotechnical engineering practice lead. I recently had the pleasure of presenting a talk on this topic at the Connecticut Society of Civil Engineers Spring 2017 Geotechnical Conference. This post provides some highlights of my talk. The […]

Settlement of Structures Part 2 – “The Fix”

In Part I of this topic, we discussed the assessment and the identification of the cause of settlement of existing structures.  Once the causes have been identified, we can then provide alternatives to prevent on-going settlement, if needed.  This post will discuss a few of the engineering solutions that are available to mitigate a settlement […]

What is Connecticut Valley Varved Clay?

Large areas of the Connecticut River Valley are underlain by a type of soft soil deposit known as Connecticut Valley Varved Clay (CVVC).  This deposit formed at the bottom of a large glacial lake, commonly known as Lake Hitchcock, which once filled almost the entire valley from Vermont to near Long Island Sound. This lake […]

Geotechnical Engineering Series: Building Settlement issues in Western New England

  The OTO geotechnical group will feature a series of blogs discussing soil settlement concerns and mitigation.  Topics will include forensic studies and remediation alternatives for existing building settlement and damage, as well as providing geotechnical engineering solutions for new construction to mitigate settlement concerns.   Part I:  Soil Detectives! Assessment of Settlement of Existing […]