test-site

UNLV Engineering Geophysics Laboratory

test-site Engineering Geophysics Test Site
Map of EGTS

Drilling

Drilling at the UNLV test site by Western Technologies, Inc.

A site has been designated on the UNLV campus for geotechnical and geophysical characterization and ground truthing. The soil profile includes primarily gravels and sands, with some cemented lenses and caliche. Groundwater is encountered at 3 meters. The site has three cased and grouted 3 in. (75 mm) diameter boreholes, 20 feet (6 m) deep, which are appropriate for crosshole seismic testing.

Some data collected on this site are posted at the EGTS Database Bank.

Borehole – based Testing

Crosshole seismic testing

First-generation downhole seismic source

Downhole seismic source developed at UNLV

Downhole geophone

Seismic refraction measurements

Burcin Avar with seismograph

Seismic refraction testing using shear waves

Resistivity

Bjorn Sundquist explaining the resistivity imaging equipment.

Discussing electrode configuration

Conductivity

Jeff Mason with conductivity meter

Conducting a conductivity survey

Development and research at this site are made possible by the National Science Foundation, Western Technologies, Inc., State of Nevada Applied Research Initiative and the Howard R. Hughes Colleges of Engineering.