GM Enterprises has many geotechnical sample collecting techniques:
Shelby Tube Sampling
Split Spoon Sampling
Texas Highway Department Cone Penetration Test Sampling
Continious Five Foot Sample Barrells
NX Rock Coring
NQ Rock Coring
Direct Push Sampling
We offer several drilling techniques as well:
Continious Flight Auger Drilling
Hollow Stem Auger Drilling
Wet Rotary Drilling
Air Rotary Drilling
Dual Tube NX Core Barrell System Drilling
Dual Tube NQ Core Barrell System Drilling
Electric, Hydraulic Direct Push Sampling
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