
Geotechnical engineering is the branch of civil engineering concerned with the engineering behavior of earth materials. Geotechnical engineering is important in civil engineering, but also has applications in military, mining, petroleum and other engineering disciplines that are concerned with construction occurring on the surface or within the gr...
Found on
http://en.wikipedia.org/wiki/Geotechnical_engineering

The branch of engineering that specializes in assessing the stability and strength of soil and rock materials, as well as groundwater conditions. With regard to mining, geotechnical engineering principles are used to determine the appropriate design of mine features such as pit walls, tunnels, and earthen embankments.
Found on
http://www.rocksandminerals.com/glossary.htm
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