Excavation Engineering & Earth Mechanics Institute (EMI)

A global leader in rock mechanics, excavation technology and materials testing for more than five decades.

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

About EMI

Originally established to advance the science of mining and tunneling, the Earth Mechanics Institute at Colorado School of Mines has since broadened its scope to support civil, energy and underground construction projects worldwide. It is recognized as one of the premier rock mechanics laboratories in North America.

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

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.”

Facilities

EMI testing follows strict standards set by the American Society of Testing & Materials and the International Society of Rock Mechanics. EMI’s capabilities extend from rock mechanics testing to full-scale rock excavation and drilling tests, offering clients flexible solutions for both industrial and research engineering needs

2ServoControlled Press (100-250-500 ton capacity)
Point Load testing
UltrasoicWaveVelocity
Direct Shear,Slake Durability, Cerchar Abrasion
Norwegian Drillability – Boreability tests

XRD-XRF-This Section
Linear Cutting Machine
Rotary Drilling
Percussive Drill
Roof Bolter

Customized testing for mining and tunneling projects ranging from rock mechanics testing to data analysis

EMI maintains close collaboration with academic researchers, laboratory staff and industry partners. Our clients include contractors, consultants, mining companies, government agencies and more. This environment fosters innovation, ensures rigorous quality control and allows us to customize test programs to meet the unique requirements of each project.