Geocomp Lab Systems: Case Studies

GeoDesign Upgrades to Fully Automated Geotechnical Testing, Consolidation testing

Profile:
Located in Portland, Oregon, GeoDesign, Inc. offers clients a full range of integrated geotechnical, environmental and geological consulting services. GeoDesign’s soil testing lab supports the firm’s in-house design and construction monitoring needs.

Challenge:
GeoDesign wanted to update its soil testing and consolidation testing capabilities in accordance with new federal agency recommendations, and was looking for a system that would provide close-loop RM testing along with the ability to automate strength and consolidation testing.

At the time, the company was equipped to conduct direct shear tests, but did not have a triaxial system and could not fulfill triaxial test requirements.

consolidation testing

“The system is extremely good at providing quick, accurate reports of the test results… [It] definitely exceeds our expectations.”
  
George Saunders Principal Geotechnical Engineer GeoDesign, Inc.

Solution:
GeoDesign acquired a fully-automated triaxial cyclic, RM, stress path system from Geocomp in 2002. The company now uses the system to conduct RM, strength and consolidation testing.

Management selected Geocomp’s system from among the available alternatives because it is well-designed and supported, said George Saunders, Principal Geotechnical Engineer at GeoDesign.

Benefits:
GeoDesign’s new equipment has dramatically increased the firm’s ability to complete detailed RM, strength and consolidation testing. And it has increased the design team’s confidence in its soil testing results.

We feel much more comfortable with the data,” Saunders said. “Soil is not well behaved,” he explained. “It’s what Mother Nature put in the ground for you. This apparatus allows us to at least tame it a bit. It helps us to define the material to a higher and more efficient degree,” he said.

The Geocomp system is also more efficient in terms of labor. “You can have all the loads done and the job completed over night without having to baby sit the test itself,” Saunders said. “None of our other equipment includes feed-back loop automation, and accordingly, it can not be fully automated like the Geocomp system is,” he said.

Initially, Saunders found the prospect of transitioning to a new automated system a bit intimidating. “It’s a fairly significant piece of hardware and software, and it takes time to get comfortable with it and make sure you’re doing the tests correctly,” he said.

Support provided by Geocomp’s technical team, led by Dr. Rachid Hankour, has made all the difference, Saunders said. “Rachid Hankour is the best out there,” he said. “I know I can call him and he’ll give me the skinny in a way that will allow us to get something done quickly.”

Having new soil testing capabilities may allow GeoDesign to take on some additional work, Saunders said. “People in this area don’t have [the resources to test] the seismic parameters that you can test with this Geocomp equipment. There is nobody in town who has that capability. There may be some ability to market that as an attribute,” Saunders said.

A year after purchasing its new geotechnical testing system, GeoDesign reports that it is performing admirably. I’m happy with the machine,” Saunders said. “The system is extremely good at providing quick, accurate reports of the test results … [It] definitely exceeds our expectations.”

© 2007 Geocomp Corporation