Groff Engineering provides underground mining engineering services for industrial minerals, aggregates, evaporites, and coal operations.

Our experience includes mine planning, ventilation engineering, rock mechanics, mine development, and resource and reserve evaluation.

Underground Mining Expertise

Groff engineers have hands-on experience in underground operations, including:

• Limestone mining
• Salt mining
• Zinc mining
• Coal mining
• Large-opening room-and-pillar mining

Our team combines practical operating experience with modern engineering tools to deliver safe, efficient, and economically viable mining solutions.

Underground Mine Planning & Design

We assist clients with:

• Mine development planning
• Room-and-pillar layout design
• Production scheduling
• Reserve recovery optimization
• Infrastructure planning

Whether evaluating a new mine or improving an existing operation, we focus on maximizing recovery while maintaining safety and operational efficiency.

Mine Ventilation Engineering

Proper ventilation is critical to underground mine safety and productivity.

Groff Engineering performs:

• Ventilation surveys
• Airflow measurements
• Atmospheric pressure monitoring
• Ventilation network modeling
• Ventilation improvement studies

Our work helps operators maintain safe working conditions and optimize ventilation performance.

Rock Mechanics & Mine Stability

Understanding rock behavior is essential for managing underground risks.

Our services include:

• Stability assessments
• Pillar design review
• Ground control recommendations
• Numerical modeling
• Finite difference analysis

We apply advanced analytical tools when appropriate while maintaining a practical focus on field conditions.

Selected Underground Mining Experience

Hannibal Underground Limestone Mine

Managed engineering and development activities for the Hannibal Underground limestone mine, a project with approximately 1.6 million tons per year of production capacity.

Underground Salt Mining

Provided engineering support and operational experience within underground salt mining operations.

Tennessee Zinc Mining

Began professional career working in underground zinc mining operations in Central Tennessee.

Why Choose Groff Engineering?

• Professional mining engineers
• Underground mining experience across multiple commodities
• Expertise in room-and-pillar mining methods
• Ventilation and ground control capabilities
• Practical operating experience combined with advanced engineering analysis