INTRODUCTION
Subsurface exploration is typically conducted prior to construction
and development of most sites. The subsurface conditions are often
investigated by drilling bore holes into the ground, and noting the elevations
of different soil and rock types, and the location of the water table.
Samples of the soil or rock may be obtained for identification or laboratory
testing, and in-place tests may be performed to determine soil and rock properties.
The Department of Civil and Environmental Engineering and the Department
of Geological Science have a trailer mounted, gasoline powered drill called
the Winkie, which is used to provide "hands on" experience in subsurface
investigation.
DESCRIPTION OF THE WINKIE DRILL
The Winkie drill is a lightweight portable gasoline powered drill mounted on a trailer. The drill was designed to recover 1" rock cores to a depth of 400'. In some formations, cores up to 2 1/8" in diameter can be recovered to lesser depths. A reduction gear allows for lower rotation rates when drilling through soil. Continuous flight augers of 2 3/4" diameter are used for subsurface exploration and sampling of soils. The Winkie is used by the Geotechnology and Materials Group as an instructional tool in the introductory course in Geotechnical Engineering (CE 330). It is also used in support of the Senior Design Project (CE400), and several research projects.
MAIN APPLICATION
Augur drilling for soil exploration
