Mining & Tunneling

Underground Construction Solutions for Mines, Tunnels, and Shafts

Mining & Tunneling projects require more than excavation capacity. They require a specialty contractor that understands underground access, ground behavior, support sequencing, equipment constraints, safety planning, and the realities of working in limited-access environments.

When infrastructure teams face complex underground challenges, Drill Tech Drilling & Shoring, Inc. delivers the ideal combination of experienced field crews and practical engineering expertise. Through our specialized Mining & Tunneling Division we manage the entire lifecycle of subterranean projects. 

From initial mine development, deep shafts, and portal creation to comprehensive tunnel rehabilitation and the construction of permanent underground infrastructure, we provide the steady ground support and excavation services you need.

Partner with Drill Tech to conquer complex underground constraints and safely engineer your future today

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Underground Construction for Complex Mining & Tunneling Projects

Navigating the complexities of mining and tunneling means managing constant environmental variables. From volatile geological formations and water-management challenges to restrictive spatial footprints, there is no margin for error. Success demands an underground partner capable of balancing meticulous risk mitigation with agile, safe field operations.

Drill Tech supports underground construction projects where coordination between engineering, excavation, support installation, and equipment access is critical..

A successful mining or tunneling scope depends on several practical factors:

1. Safe access into the work area
2. Excavation methods suited to the ground conditions
3. Ground support installed at the right stage
4. Equipment that can operate within underground constraints
5. Coordination with the owner, engineer, and project team
6. Final infrastructure that supports long-term use

Mine Development and Infrastructure Support

Mine development depends on creating reliable access and support systems before production or long-term use can advance. Drill Tech assists with the underground elements that allow mine owners and operators to working infrastructure.

That work can include portals, declines, shafts, excavation support,. In each case, the objective is to create a safe, constructible path into the mine while supporting the surrounding rock or soil.

Drill Tech’s experience with mining and tunneling systems includes public and private projects such as the Two Mile Bar Tunnel, tunnel stabilization work for the South Coast Water District, and projects at the Barrick Cortez Hills Underground Mine in Nevada. 

Tunnel Rehabilitation and New Tunnel Construction

Tunnel work can involve new construction, rehabilitation, stabilization, or improvements to existing underground infrastructure. Each type of project brings different risks. A new tunnel may require careful sequencing through changing ground. Pojects may require work around existing linings, utilities, water, restricted access, or active infrastructure.

Drill Tech supports tunnel projects with excavation, ground support, and construction methods designed around the site. When the work involves a water tunnel, utility tunnel, mine tunnel, access tunnel, or infrastructure corridor, our team focuses on safe access, stable excavation, and practical support installation.

Don’t compromise on underground risks. Trust Drill Tech’s proven expertise to keep your project moving

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Mining & Tunneling Services From Our Geotechnical Construction Experts

At Drill Tech, our Mining & Tunneling Division brings together multiple underground construction capabilities, helping project teams coordinate related scopes.

Underground Mining

Underground mining projects require safe access, controlled excavation, and robust support systems engineered for demanding environments. Drill Tech delivers comprehensive solutions for underground mine infrastructure, seamlessly coordinating complex ground conditions, strategic access points, and production milestones.

Our expertise spans the entire lifecycle of underground development; beginning with the creation or improvement of portal, shaft, and decline access, and extending through lateral mine development. To navigate these constrained and technically demanding environments, we emphasize rigorous planning, precise sequencing, and tailored equipment selection before excavation begins. 

Drill Tech’s comprehensive underground capabilities include:

• Mine Access & Development: Portals, shaft access, declines, and lateral mine development.
• Excavation Support: Customized support systems for both soft rock and hard rock environments.
• Infrastructure Construction: underground mine facility installation.
• Rehabilitation & Remediation: Rehabilitation of existing underground openings and ground support remediation.
• Specialized Production Services: Production mining and mine backfill operations.

Tunnels

Drill Tech delivers tunnel construction and rehabilitation for diverse civil projects, including hydroelectric, railroad, transportation, water/sewer tunnels, large caverns,. We safely manage complex alignments and ground behavior across all geologies, matching support systems to field conditions.

Our teams specialize in versatile excavation and stabilization methods, including hand mining, drill-and-blast, roadheaders, shield tunneling, SEM/NATM, and pipe/box jacking, alongside advanced shotcrete and rock reinforcement to meet strict owner schedules.

Access Shafts

Access shafts provide vertical or near-vertical entry for personnel, equipment, materials, ventilation, utilities, or permanent underground infrastructure. They are often one of the most critical components of a mining or tunneling project because they affect how work is staged and how safely the underground area can be reached.

Drill Tech supports access shaft work with the planning and construction capability needed to manage structural requirements. Shaft projects require careful attention to groundwater, adjacent structures, confined access, spoil handling, support sequencing, and safety controls.

When an underground project depends on the shaft, the shaft cannot be treated as a secondary scope. It becomes part of the project’s critical path.

Ground Support

Ground support is key to underground safety and long-term performance. As excavation progresses, the surrounding ground must be stabilized so crews can continue working and the finished tunnel, shaft, decline, or underground opening can function as intended.

Drill Tech provides ground support installation for mining and tunneling projects that require practical, field-ready solutions. Support may involve methods such as shotcrete, rock bolts,, steel arches,  or other systems selected for the site conditions.

The right ground support plan should account for:

1. Rock or soil conditions
2. Excavation geometry
3. Groundwater and drainage conditions
4. Construction sequencing
5. Long-term infrastructure requirements

Custom Fleet: Specialized Equipment for Your Mining or Tunneling Project

Mining and tunneling projects often require equipment that can perform in tight, low-clearance, or difficult-access environments..

Drill Tech’s custom fleet supports project teams that need specialized machinery, tooling, and field capability matched to the work area. This matters when access is limited, headings are constrained, or the project requires equipment that can be adapted to underground sequencing.

A custom fleet is valuable because it helps reduce avoidable delays. When equipment is selected around the work plan, crews can move more efficiently and respond more effectively to field conditions.

Discuss Your Mining & Tunneling Project With Drill Tech

If your project involves underground mining, tunnel construction, shaft access, ground support, or tunnel rehabilitation, Drill Tech can help you evaluate the right path forward. Our team is ready to support technically demanding underground work with experienced crews, practical engineering, and specialty geotechnical construction capability.

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How Drill Tech Supports Mining & Tunneling From Planning Through Execution

The strongest outcomes come from connecting planning, engineering input, field execution, and quality control.

Drill Tech’s approach is built around the way underground work actually progresses. We evaluate the project requirements, align the right methods and crews, and adapt to field conditions without losing sight of safety or performance.

Our process typically includes:

• Reviewing the project scope, access needs, and ground conditions alongside the project developer
• Coordinating engineering, sequencing, and constructability requirements
• Selecting equipment, crews, and support methods for the work area
• Executing excavation, support, and infrastructure scopes in the field
• Monitoring conditions and adjusting methods when needed
• Completing permanent support or outfitting requirements

Engineering and Constructability Coordination

Mining and tunneling work benefits from early coordination between design intent and field reality. Drill Tech’s in-house engineering capability helps bridge that gap by supporting practical plans that can be built safely and efficiently.

This coordination is especially important when underground access, ground support, and excavation sequencing affect one another. By reviewing constructability early, Drill Tech helps project teams reduce risk before it becomes a field problem.

Field Crews With Underground Experience

Underground construction places a premium on experienced crews. Crews must understand confined access, support sequencing, changing ground, ventilation concerns, material handling, and the need to communicate clearly as work advances.

Drill Tech’s field teams bring the experience needed to manage these challenges while keeping the project aligned with safety, schedule, and quality expectations. That practical experience is one of the reasons project teams rely on Drill Tech for specialty geotechnical construction.

Related Specialty Geotechnical Services

Mining and tunneling projects often require support from other specialty geotechnical services. Drill Tech can help connect underground work with the related scopes needed to complete the project.

For excavation support and portal areas, our earth retention systems can help stabilize lateral earth pressures and support temporary or permanent structures. Where weak or loose soils affect performance, ground treatment and ground improvement can improve stability, bearing capacity, and seismic resistance. For structural support needs, deep foundation systems can transfer loads to stronger soil or rock below the surface.

Service Integration for Complex Underground Projects

The strongest project outcomes happen when related scopes are coordinated early. Mining and tunneling work can involve excavation, ground support, water control, access planning, shoring, stabilization, foundations, and final outfitting.

Drill Tech helps clients align those scopes so the work can move forward safely and efficiently.

Why Choose Drill Tech for Mining & Tunneling

Drill Tech is a nationwide specialty geotechnical construction contractor with more than 30 years of experience, 600+ employees, 2,500+ completed jobs, and work performed across 45+ states. Our services combine field execution with in-house engineering support, giving clients a partner that can help solve technical problems and build the work.

For Mining & Tunneling projects, that combination is especially valuable. Underground scopes are often affected by ground conditions, access, equipment limitations, schedule pressure, and changing site realities. Drill Tech is built to respond to those challenges with experienced people and practical solutions.

Key advantages include:

• Specialty geotechnical expertise across excavation support, ground treatment, foundations, rail, and underground construction
• Nationwide execution capability for infrastructure, transportation, water, mining, and heavy civil projects
• In-house engineering support that helps align design intent with constructible field methods
• Project-tested crews and equipment for complex ground and access conditions
• A safety-focused approach built around planning, communication, and disciplined execution

The right underground contractor helps reduce uncertainty before it becomes a costly delay.

The Benefits of Working With Drill Tech

Experience Across Infrastructure, Mining, and Heavy Civil Work

Mining and tunneling scopes often intersect with other specialty geotechnical needs. A tunnel portal may require earth retention. A shaft may need ground support. A mine infrastructure project may require stabilization, foundations, or custom access solutions.

Because Drill Tech works across multiple specialty geotechnical disciplines, our team can evaluate the broader project context, helping owners and contractors coordinate work more effectively.

Built for Safe, Practical Project Delivery

Safety and constructability drive Drill Tech’s mining and tunneling approach. We understand that underground work does not allow for guesswork. Plans must be realistic, equipment must fit the job, crews must understand the risks, and support systems must be installed with discipline.

Our goal is to help clients move difficult underground projects forward with confidence.

Choose Drill Tech’s nationwide footprint and 30-year legacy for guaranteed underground engineering excellence

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Frequently Asked Questions About Mining & Tunneling

Why is ground support important in underground construction?

Ground support helps stabilize the surrounding rock or soil as excavation advances. It protects crews, supports the opening, and helps the finished tunnel, shaft, decline, or underground structure perform as intended.

Does Drill Tech support both new tunnels and rehabilitation work?

Yes. Drill Tech’s Mining & Tunneling Division supports both new construction and tunnel rehabilitation. Rehabilitation work may involve stabilizing existing underground infrastructure, improving support systems, or working within restricted access conditions.

Who should contact Drill Tech for Mining & Tunneling services?

Owners, general contractors, public agencies, mining operators, and infrastructure teams should contact Drill Tech when a project involves underground construction, tunnel support, mine access, shafts, portals, or complex ground conditions.