Excavation Engineering and Earth Mechanics Institute (EMI)
(Industrial Testing Lab)

Pioneering solutions in tunneling, mining, and geotechnical construction through innovation, testing, and modeling.

EMI – Industrial Testing Lab and Research Institute (Rock, Soil, and Concrete)

About EMI
Since 1974, EMI at Colorado School of Mines has led innovation in mechanical excavation, tunneling, and drilling solutions for mining and civil underground construction. We provide cutting-edge research, advanced testing, and performance modeling to solve the most demanding underground challenges.

What We Do:

❖ Tunneling & Boring: Hard rock and soft ground TBMs, shaft/raise boring, and microtunneling.
❖ Mining Technology: Testing of continuous miners, roadheaders, and longwall shearers.
❖ Drilling & Excavation: For oil, gas, and water wells, including jet-assisted and mechanical cutting.
❖ Optimization & Innovation: Performance modeling, automation, and predictive tool development.
❖ Industry Collaboration: Partner-driven testing, validation, and custom technology development.

Why EMI?

❖ 50+ years of experience with real-world validation
❖ State-of-the-art testing facilities and modeling tools
❖ Proven track record of innovation and cost-effective solutions
❖ Close collaboration with global industry leaders

Excavate, Master, Innovate.

Excavate, Master, Innovate is the motto for EMI.

EMI’s Vision

“To be the global leader in rock mechanics and excavation engineering, advancing scientific understanding and pioneering innovative solutions for mining, tunneling, and geotechnical challenges.”