Line Drilling Services

Line Drilling Contractor for Controlled Rock Separation

Line drilling is used to create a controlled plane of weakness in rock so excavation can occur along a defined boundary.

Queensland Drill & Blast Services provides line drilling services for civil construction, infrastructure, trenching, subdivisions and other projects where clean rock separation, profile control and reduced disturbance are critical.

This method is commonly used where excavation accuracy matters and where uncontrolled breakage could create safety risks, create rework or damage rock beyond the required cut line.

Line drilling is particularly effective on projects requiring tighter tolerances, cleaner edges and more disciplined control over surrounding ground conditions. Our team delivers line drilling with a focus on drilling accuracy, practical coordination and reliable field execution.
About Us

Why Choose QDBS for Line Drilling

Line drilling only works properly when hole spacing, alignment and execution are disciplined. Small inconsistencies can affect the fracture line, reduce the quality of separation and compromise the final excavation result. That is why practical field control matters.

Queensland Drill & Blast Services provides line drilling with a focus on the details that make the method effective on real projects, not just in theory.

Clients choose QDBS for line drilling because we focus on:

Accurate drilling along defined cut lines
Practical understanding of excavation tolerances
Consistent hole spacing and alignmentsafer, cleaner preparation for rock removal
Reliable field delivery across constrained and sensitive sites
Clear coordination with engineers, supervisors and downstream contractors
Trusted by many companies

Why Line Drilling Is Used

Line drilling is used to help create a defined break line in the rock, allowing excavation to occur with greater precision and less unnecessary disturbance outside the intended cut. This makes it a practical method for projects where excavation limits are tight and where overbreak can create downstream problems.

A well-executed line drilling programme can help achieve:

Cleaner rock separation
Improved excavation boundary control
Reduced overbreak
Better final wall and profile definition
Less disturbance to surrounding ground
More efficient follow-on works such as footing installation, retaining structures, trenching and service placement


On projects where the edge needs to be right, line drilling helps improve excavation quality and reduce rework.

Industries We Service

Line drilling is used across industries where rock needs to break along a defined boundary and the final excavation profile needs to stay controlled. Queensland Drill & Blast Services supports projects where cleaner edges, reduced overbreak and disciplined execution matter.

Civil construction

Civil construction works often require excavation near structures, services, basements and staged work zones. Line drilling helps create cleaner boundaries and better profile control where excavation accuracy matters.

Quarries

In quarry environments, line drilling is used where wall control, boundary definition and reduced overbreak matter more than pure production output. It helps create cleaner separation along defined cut lines, supports safer excavation near benches, haul roads or fixed infrastructure, and improves profile control in areas where the final rock face matters.

Mining & rehabilitation

Rehabilitation works can require controlled excavation outcomes rather than aggressive production-focused breakage. Line drilling can help shape cleaner profiles and support more controlled final landform preparation.

Utilities & Trenching

Utility corridors, drainage works and service trenching in rock often need straighter trench edges and more controlled break lines. Line drilling helps improve excavation boundaries and supports cleaner trench preparation.

Infrastructure

Infrastructure projects often involve tight tolerances, complex staging and multiple downstream trades. Line drilling supports cleaner rock separation so excavation works can hand over with less rework and better control.

Subdivisions

Subdivision rock excavation is often shaped by site boundaries, neighbouring properties and service constraints. Line drilling is well suited to these environments where cleaner edges and reduced overbreak are important.
Hire Drillling Teams

Our Drill Rigs & Machines

Our fleet includes multiple Epiroc SmartROC surface drill rigs, specifically the SmartROC T35, T40, and T45 platforms, allowing us to deliver reliable drilling across civil, quarry, mining, and renewable energy projects.These rigs are designed for quarrying and construction environments, delivering precise drilling, high productivity, and improved blast outcomes through consistent hole quality and intelligent control systems.

Precision drilling across multiple environments

Our SmartROC T35, T40, and T45 drill rigs provide consistent drilling performance across civil construction, quarry production, mining rehabilitation, and renewable energy projects. Their advanced control systems ensure accurate collar positioning, controlled penetration rates, and consistent hole depth. Protecting blast design integrity and improving overall excavation outcomes.

Intelligent rig control and hole accuracy

SmartROC drill rigs use advanced rig control systems to monitor drilling parameters in real time, reducing operator variability and improving hole alignment and consistency. This improves fragmentation outcomes, reduces oversize material, and supports safer and more efficient blasting operations.
iPhone mockup

Scalable fleet for small and large programmes

With multiple SmartROC rigs available, we can deploy single or multi-rig drilling operations depending on project size and programme requirements. This allows us to maintain production schedules, support simultaneous project sites, and scale drilling output to meet client timelines without compromising drilling quality.

Maintained for reliability and operational uptime

All drill rigs are supported by structured preventative maintenance systems, daily inspections, and dedicated fleet management. This ensures equipment remains operational, reliable, and ready for deployment. Reducing downtime and ensuring consistent delivery across all project environments.
We Go All Over

Reliable Mobilisation Across Australia

Australian flag
Drilling or blasting services in your area?
Request a Quote →
Contact Us
Brisbane · Gold Coast · Sunshine Coast · Cairns · Townsville · Toowoomba · Rockhampton · Gladstone · Bundaberg · Mackay · Hervey Bay · Wide Bay
Remote
24/7 Work
Australian flag
Drilling or blasting services in your area?
Request a Quote →
Contact Us
Sydney · Newcastle · Wollongong · Coffs Harbour · Tamworth · Port Macquarie · Byron Bay · Orange · Bathurst · Albury · Mudgee
Remote
24/7 Work
Australian flag
Drilling or blasting services in your area?
Request a Quote →
Contact Us
Adelaide · Mount Gambier · Port Augusta · Whyalla · Port Lincoln · Riverland · Barossa Valley · Flinders Ranges · Yorke Peninsula · Limestone Coast · Fleurieu Peninsula
Remote
24/7 Work
Australian flag
Drilling or blasting services in your area?
Request a Quote →
Contact Us
Darwin · Katherine · Alice Springs · Tennant Creek
Remote
24/7 Work
Our crews are experienced in working across metropolitan, regional and remote environments. We mobilise efficiently with the equipment, safety systems and operational planning needed to support projects across multiple states.

Whether working on infrastructure corridors, quarry sites or remote developments, we bring the same disciplined approach to drilling accuracy and blasting execution.

Uptime & Maintenance Systems

Most delays aren’t geology they’re breakdowns and logistics.

Our in-house maintenance division ensures maximum reliability and uptime, with a strong focus on safety, efficiency and compliance, including:
24/7 support from experienced maintenance staff with fully equipped service vehicles
Strict preventative maintenance schedule to minimise downtime
OEM parts supported by a strong supplier partnership
Full in-house capabilities (hose fabrication, drifter rebuilds, full servicing)
MEX software used for daily defect reporting and pre-start checks