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Base Model:
SASW-G [Geophysical Testing]
click here for enlarged view [+]
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Scroll down to see a list of Available
Models and Key
Features for the SASW test method add-on.
Save money! Contact Olson Instruments when adding on to an existing system,
or purchasing multiple systems as some of the components are common to other
test methods.
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Spectral Analysis of Surface Waves (SASW-G) investigations are
typically applied to assess material properties of soil and rock.
The Spectral Analysis of Surface Waves (SASW-S) system
is designed to measure the in-place shear wave velocity profile of
soil and rock without requiring a borehole. In general, the method
uses the dispersive characteristics of surface waves to determine the
variation of the shear wave velocity (stiffness) of layered systems
with depth. Once the shear wave velocity profiles are determined, shear
and Young’s moduli of the materials can be estimated through the use
of elastic wave theory equations. The shear wave velocity profiles
(shear wave velocity versus depth) are determined from the experimental
dispersion curves (surface wave velocity versus wavelength) obtained
from SASW-G measurements through a process called forward modeling
or through an inversion process.
The SASW-G method has been applied to soil sites with measurement depths exceeding 150 feet. It should be noted that the method requires an accessible area on the surface
with a length equal to or greater than the measurement depth required. The method can applied on both bare ground as well as paved surfaces. Add the SASW-S bar (shown in photo at left) for structural and pavement
applications.
Training
Hands-on training classes are available for all of our Nondestructive Testing
Methods at our Wheat Ridge, Colorado (USA) location, which is a
suburb located appromately 15 minutes northwest of downtown Denver. Training
may be available at your location by one of our agents upon special arrangement.
For complete details about the Spectral Analysis of Surface Waves-G system available
as an add-on test for the Freedom
Data PC or NDE 360 platform, call toll free
1-888-423-1214 or email:
details@olsoninstruments.com
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Applicable On:
- Asphalt
- Concrete
- Masonry
- Stone
- Wood
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Test For:
- Layer Thickness
- Soil & Rock Moduli
- Shear Wave
Velocity Profiles
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Meets ASTM:
Meets ACI:
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All of Olson Instruments have been researched, tested, and used on-site daily
by our sister company, Olson
Engineering, world reknowned for NDT consulting. The OE
Website is loaded with Tech Brief and project photos using the
equipment shown on this website. Purchase our products to “do-it-yourself”,
or hire an Olson Engineering Nondestructive Testing professional for your
next project
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