Ground Support Equipment Guide for Contractors

Ground support equipment stabilizes rock and soil on mining and tunneling projects. Learn what it includes, how to specify it and where grouting plants fit.

Introduction
What Counts as Ground Support on a Mining or Tunneling Site?
How Does Grouting Equipment Fit Into Ground Support?
Which Specifications Matter Most Before You Buy?
Site Access, Dust, and Worker Safety Considerations
What People Are Asking
Ground Support Equipment Approaches Compared
How AMIX Systems Supports Grouting for Ground Support
Practical Tips for Specifying Your Equipment
Wrapping Up
Further Reading

Article Snapshot

Ground support equipment is the machinery and systems that stabilize rock and soil around underground and civil excavations, including drilling, bolting, shotcrete and grouting equipment. Contractors choose it by ground conditions, required output, site access and worker safety, and grouting plants supply the mixed material that many support methods depend on.

By the Numbers

A 2026 Australian occupational-exposure study included 238 workers involved in ground-support activities such as piling, drilling, mesh installation, and shotcrete (Oxford Academic, 2026)^[1].
The same study reported a 52 percent prevalence of the measured exposure indicator among the ground-support work group (Oxford Academic, 2026)^[1].
The study reported a median exposure concentration of 0.023 for the ground-support work group, using the study’s stated measurement units (Oxford Academic, 2026)^[1].

Introduction

Ground support equipment keeps excavations open, safe and productive by holding rock and soil in place while crews work. Mining contractors, tunneling crews and geotechnical firms depend on it every shift, and a poor equipment choice shows up quickly as delays, rework and safety incidents. Contractors in places such as Alberta, Saskatchewan and the US Gulf Coast also work in ground that needs stabilization before anything else can be built.

AMIX Systems Ltd., a Canadian engineering and manufacturing company based in Vancouver, designs the grout mixing plants, pumps and handling equipment that serve the grouting side of ground support. We do not build drilling rigs, bolters or tunnel boring machines, so this guide is clear about where our equipment fits and where it does not.

This article explains what ground support covers, how grouting and backfill plants connect to a wider support program, which specifications deserve attention, and how dust and site access affect your choices. A comparison table, practical tips and four common questions follow.

What Counts as Ground Support on a Mining or Tunneling Site?

Ground support equipment is the set of machines and systems that install, place or inject the elements holding rock and soil stable around an excavation. The category covers drilling rigs, rock bolting machines, mesh handling, shotcrete sprayers, and grouting and backfill plants. Each machine installs a different element, and a complete program combines several of them.

Teams use several names for the same idea, including ground support systems, ground control equipment and ground stabilization equipment. The wording changes between mining, tunneling and geotechnical work, but the job stays constant: keep the ground where the design says it should be.

Core Categories of Ground Support Equipment

Mechanical reinforcement machines drill holes and install bolts, dowels and mesh. Shotcrete machines spray a structural lining over the excavated surface, and AMIX lists a used Shotcrete System – Wet & Dry Mix with PLC and HMI controls on its used equipment pages. Grouting equipment mixes and pumps cement-based or bentonite materials into voids, fractures, soil or the gap behind a tunnel lining. Backfill equipment fills mined-out spaces so the surrounding rock stays supported.

Where Projects Use This Machinery

Underground hard-rock mines use support machinery for stopes, shafts and cemented rock fill. Tunneling contractors need it for segment backfill and annulus grouting behind a tunnel boring machine. Dam owners use grouting for curtain, foundation and consolidation work, and geotechnical contractors use it for jet grouting, deep soil mixing, micropiles and soil nails. Scale varies widely, from a few cubic meters of grout per hour on a micropile job to continuous high-volume production on a large soil mixing site.

How Does Grouting Equipment Fit Into Ground Support?

Grouting equipment fits into ground support by producing and delivering the cement, bentonite or other slurry that fills voids, bonds anchors and seals fractures. Grout plants are ground support equipment in the same way a bolter is, because anchors, soil nails, micropiles and tunnel linings cannot perform as designed without a consistent grout. The mixing plant is part of the support system, not an accessory to it.

Why Colloidal Mixing Matters

A colloidal mixer shears cement particles at high speed so every particle is wetted and dispersed. The result is a stable mixture that resists bleed and pumps more easily. AMIX publishes the patented AMIX high-shear colloidal mixer (ACM) as the heart of its plants. The published design uses tangential entry ports that create a vortex, a patented impeller that shears on both sides, and a shear zone against a replaceable wear liner. We describe this as true colloidal mill shearing, which differs from systems that use a centrifugal pump to simulate shearing.

Plant Output Ranges

The AMIX Grout Plant (AGP) line is organized by plant output. The AGP Typhoon covers 2 – 8 m³/hr, the AGP Cyclone covers 8 – 30 m³/hr, and the AGP Hurricane covers 25 – 110+ m³/hr. The colloidal mills inside carry higher maximum flow ratings, such as 272 m³/hr for the 8×4 mill, but that figure is the mill’s maximum flow and not the plant’s production rate.

Published projects show the practical range. On the Seymour-Capilano twin tunnels filtration project in North Vancouver, an ACM 4000 with a 3.5 m³ mixer produced 30 m³/hr and allowed grout to be pumped up to 1,000 m for Frontier-Kemper. On a deep soil mixing project for Recon Services, an AGP supplied within 4 months produced 100 – 150 m³/hr and logged over 150 operating days with 3 down days for maintenance and repair. That record shows a well-built plant still needs planned maintenance.

Which Specifications Matter Most Before You Buy?

The specifications that matter most for ground support equipment are output, pressure, wear resistance, mobility and material handling, because together they decide whether a machine matches the ground and the schedule. Check each one against the actual project rather than the catalog headline.

Pumps and Agitated Tanks

Pump choice depends on the material being moved. Peristaltic Pumps – Handles aggressive, high viscosity, and high density products flow 1.8 – 53 m³/hr (8 – 232 gpm) and, per the AMIX data sheet, reach up to 3 MPa (435 psi). They have no seals or valves to service, and only the hose is a wear item. HDC heavy-duty centrifugal slurry pumps suit high-volume slurry transport, with a published capacity of up to 5,040 m³/hr and wetted parts in ASTM A532 grade 3A high chrome. AAT agitated tanks hold batches from 600 L (158 USG) to 12,000 L (3,170 USG) with variable speed from 20 – 150 rpm.

Wear Parts and Mobility

Mill wear parts matter when grouts are abrasive. AMIX mills use 29% chrome replaceable liners and impellers with high-performance mechanical seals. Mobility matters on remote or tight sites, and modular plants are built in modified 20 ft or 40 ft high-cube containers or on skids. For the Advanced Geo-Solutions rapid transit ground support project in Lake Forest, California, an ACM 2500 liter skid-mounted plant was relocatable in one day with a four-man crew.

Site Access, Dust, and Worker Safety Considerations

Site access, dust and worker exposure shape equipment decisions as much as output does, because crews handle cement powder, rock dust and heavy machinery in tight spaces. Specifying material handling and dust control at the start prevents costly changes after mobilization.

Researchers have begun to quantify exposure in this work. The 2026 Australian occupational-exposure study summarized above covered ground-support activities such as piling, drilling, mesh installation and shotcrete, and its results show that exposure is measurable across these tasks (Oxford Academic, 2026)^[1]. The figures do not tell a buyer which machine to purchase, but they show why exposure control belongs in the equipment specification.

Equipment That Supports Cleaner Handling

AMIX supplies silos, hoppers and feed systems for bulk storage, conveyors and screw conveyors for material handling, and pulse-jet dust collectors and bag-houses to capture airborne powder. Admixture systems and micro-ingredient feeders, gravimetric or volumetric, dose additives without hand batching. The ACM mixers use a self-cleaning cycle that runs on batch water, which AMIX publishes as reducing downtime and waste, and automated configurations can operate 24/7.

Access and footprint count just as much. Hard-rock mines in remote locations and urban tunnel sites with limited surface space both favor compact, modular layouts that set up quickly and move easily between work areas.

What People Are Asking

What does ground support equipment include?

Ground support equipment includes drilling rigs, rock bolters, mesh and shotcrete machines, and grouting and backfill plants that stabilize rock and soil around excavations.

The exact mix depends on the method. A bolting program needs drilling and installation machines, while a ground improvement program needs mixing plants, agitated tanks and pumps. AMIX Systems supplies the mixing, batching, pumping and material handling side, including AGP grout plants, ACM mixers, APP peristaltic pumps, HDC slurry pumps and AAT agitated tanks. AMIX does not make drilling rigs, rock bolts or tunnel boring machines.

Is a grout mixing plant considered ground support?

Yes, a grout mixing plant counts as ground support when its grout fills voids, anchors reinforcement or seals fractures that keep the ground stable.

AMIX publishes these applications for its AGP plants: cement grouting, jet grouting, soil mixing, TBM two component grout, micro tunneling lubrication, annulus backfill, micropile grouting, soil nail grouting, paste backfill and cemented rock fill. Paste backfill and cemented rock fill are applications of the plants, not separate AMIX product lines, and AMIX does not sell the cement, bentonite or admixtures themselves.

How do I choose the right grout plant size for a project?

Start with the total grout volume your rigs consume per hour, then choose the plant line whose published output range covers that demand.

The AGP Typhoon covers 2 – 8 m³/hr, the AGP Cyclone covers 8 – 30 m³/hr and the AGP Hurricane covers 25 – 110+ m³/hr. Also weigh grout type, pumping distance and the number of rigs the plant must feed. To size a system, send AMIX your project type, required output, and start and completion dates through a quote request, and book a discovery call with Ben Macdonald if you want to talk it through.

What safety risks come with ground support work?

Ground support work exposes crews to dust, heavy machinery and unstable ground, so equipment selection should include dust control, enclosed material handling and safe access.

Cement and rock dust, moving equipment and confined work areas all raise exposure. Researchers measured occupational exposure in ground-support work in a 2026 Australian study (Oxford Academic, 2026)^[1]. Closed bulk storage, dust collectors and automated batching reduce open powder handling, and a site-specific risk assessment should still guide every setup.

Ground Support Equipment Approaches Compared

Ground support methods differ in purpose, machinery and reliance on mixed material, and comparing them shows where each machine type belongs in a program. The table below summarizes three common approaches.

Ground support equipment type	Main purpose	Machinery	Role of grout mixing
Mechanical reinforcement	Holds rock blocks together at the excavation face.	Drilling rigs, bolting machines and mesh handling equipment.	Grout bonds anchors in drilled holes when the design calls for it.
Shotcrete lining	Seals and stiffens the excavated surface.	Shotcrete sprayers with batching and mixing units.	Mix consistency affects how evenly the lining is placed.
Grouting and backfill	Fills voids, seals fractures and stabilizes soil or rock.	Colloidal mixers, agitated tanks, peristaltic pumps and slurry pumps.	The mixing plant is the core of the method, and grout consistency drives results.

AMIX Systems equipment belongs mainly in the third row, with the listed used shotcrete system touching the second. The choice between approaches rests on ground conditions and the engineer’s design, not on the machinery alone.

How AMIX Systems Supports Grouting for Ground Support

AMIX Systems Ltd. designs, engineers and fabricates grout mixing plants, batch systems and related equipment for mining, tunneling and heavy civil work. The company was founded in 2012, and its team brings more than two decades of grout mixing and backfill experience. Fabrication is CWB, CSA W47.1 Division 2 certified.

For ground support equipment programs that rely on grout or backfill, our range includes Colloidal Grout Mixers in containerized or skid-mounted form, plus AGP plants, pumps, tanks, silos, admixture systems and dust collectors. Modular Containers – Containerized or skid-mounted solutions house plants in modified high-cube shipping containers for transport to remote sites. Engineering, automation, retrofitting and field support are available, and ancillary equipment integrates with new or existing setups.

“The AMIX Cyclone Series grout plant exceeded our expectations in both mixing quality and reliability. The system operated continuously in extremely challenging conditions, and the support team’s responsiveness when we needed adjustments was impressive. The plant’s modular design made it easy to transport to our remote site and set up quickly.” – Senior Project Manager, Major Canadian Mining Company

To discuss your project, request a quote with your project type, required output, and start and completion dates. Email sales@amixsystems.com or call +1 (604) 746-0555. For company updates, Follow us on LinkedIn.

Practical Tips for Specifying Your Equipment

Specifying support machinery well starts with the ground and the design, not the catalog. The tips below help contractors and engineers avoid the most common mismatches.

Document rock or soil conditions, the support method and the grout or backfill recipe before comparing machines, because equipment only performs when it matches the ground.
Add up the hourly demand of every rig, then choose a plant line whose published output range covers that total.
Ask which parts wear, how quickly they can be replaced, and whether the mill uses replaceable liners and impellers.
Schedule maintenance windows and keep key spares on site, since even a published plant record includes 3 down days in over 150 operating days.
Plan bulk storage, feed systems and dust collection together so powder handling stays enclosed from delivery to mixer.
Confirm pressure and capacity figures on the manufacturer’s data sheet, and ask the supplier to clarify any number that differs between documents.
Open the quote conversation early with project type, required output, and start and completion dates, so engineers can size the system around your schedule.

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Wrapping Up

Ground support equipment works best when every machine in the program is matched to the ground, the method and the site. Define the support method first, size the grout or backfill plant to rig demand, check wear parts and pressure ratings against data sheets, and build dust control into the specification from the start.

AMIX Systems provides the mixing, pumping and handling side of that program with modular, custom-engineered plants. Send your project type, required output, and start and completion dates to sales@amixsystems.com, call +1 (604) 746-0555, or visit Suite 460 – 688 West Hastings St, Vancouver, BC V6B 1P1. Project updates are shared when you Follow us on Facebook.