703-627-0451 roger@insitusoil.com

Campanella and Failmezger Inside Rutgers' CPT Truck

CPT Truck near Delaware Memorial Bridge

CPTU from truck at Wilson Bridge

DMT Performed from Trailer Rig being pulled by Large Trackhoe through Settling Pond in Texas

Elevated jack up barge with drill rig for stable working conditions pushing DMT at Cape Fear, North Carolina

Truck near Lincoln Memorial

Truck Rig near Washington Monument

Failmezger and Truck Rig near Space Shuttle at NASA at Cape Canaveral

Failmezger Performing BST in Cleveland

Failmezger Reading DMT Guages with 100 bar auxillary guage for 400 foot deep DMT Sounding

Failmezger, Marchetti and Bullock at ISC #1 Conference 1998 in Atlanta

Failmezger Saturating the Pressuremeter Probe at the Wilson Bridge

NASA Failmezger and Schmertmann Reading DMT Gauge

NASA Failmezger Schmertmann Crapps

Ronald Stidham Drilling the Pressuremeter Test Zone

Performing DMT from Braun Rig on Barge in North Dakota

Seismic CPT Truck overlooking Atlantic Ocean

Seismic DMT Data Collected at NASA

Seafloor Direct Push System

We have developed a seafloor direct push system enabling us to perform either cone penetrometer or dilatometer with true interval seismic tests from the mudline of a river.

Portable Direct Push System

We have developed a portable direct push system that can move through a 32-inch wide door opening to access the ground floor concrete slab next to the structure’s footings.

Dilatometer Test

We have performed the deepest dilatometer test in the world at Calvert Cliffs Nuclear Power Plant at a depth of 398 feet. We were the organizers of the Second International Conference on the Flat Dilatometer Test (2006).

Cone Penetrometer Test

The mechanical cone penetrometer probe, invented in The Netherlands in 1932 by P. Barentsen, measures the quasi-static thrust required to push a solid, conical tip having a 60 degree apex angle and a cross‑sectional area of 10 cm2 into the foundation soil

Soil Pressuremeter Test

The PMT is typically performed by inserting a cylindrical probe into an open borehole, supporting it at the test depth, and then inflating a flexible membrane in the lateral direction to a radial strain of as much as 40% depending on the probe design.

Rock Pressuremeter Test

Rock Pressuremeter Test

Rock pressuremeter tests can be used for lateral load and deformation analyses of drilled shafts. We use a rock pressuremeter that applies up to 300 bars of pressure.

Soil Borehole Shear Test

The BST , developed by Dr. R. L. Handy at Iowa State University, provides a convenient method to accurately measure the drained shear strength of soils in-situ.

Rock Borehole Shear Test

Dr. Handy developed a rock borehole shear test (RBST) device to measure the shear strength properties of rock.

Ko Step Blade

The Ko step blade was invented to measure this difficult to obtain soil parameter.  The blade contains four steps going from thin to thick from its bottom to top.

Our Mission

To enable engineers to provide better professional design services and to save owner’s construction dollars, In Situ Soil Testing, L.C. performs high quality tests and provides comprehensive analyses of soil parameters.  This website contains many references for Geotechnical, Structural and Civil Engineers to quickly find technical information about In-Situ tests and their design applications.(Which In-situ test should I use–a designer’s guide)

Company Profile

Founded by Roger A. Failmezger, P.E., F. ASCE in 1995, In-Situ Soil Testing, L.C. started with the purchase of a DMT/CPT truck originally owned by the University of Florida and designed by Dr. John Schmertmann (history of truck by Dr. Schmertmann).   It was the first direct push truck in North America and still operates well today.   The company has expanded significantly and owns a wide variety of in-situ soil and rock testing equipment.  We routinely perform dilatometer, cone penetration, pressuremeter (soil and rock), borehole shear (soil and rock), and ko step blade tests.  Unlike other firms who recommend only one test,  because that is all that they own and can do, we recommend the most appropriate test(s) for your project’s needs.

Mr. Failmezger is an accomplished and innovative engineer who has adopted and adapted the latest advances in in-situ testing for his company. Read more…

Dick Handy, Ph. D.

He has enthusiastically pioneered, together with Dr. John Schmertamann, the introduction and use of the Flat Dilatomer Test (DMT) in USA. Read more…

Silvano Marchetti, Ph. D.

In-Situ Soil Testing, L.C., 2762 White Chapel Road, Lancaster,
VA 22503 703-627-0451 | Email: roger@insitusoil.com