Ground Penetrating Radar

Yes. Although Optic Fibre cables are not traceable using electromagnetic methods, we have other tried and trusted methods for locating optic fibre cables. The most common way to locate optic fibre cables is by using a traceable copper reel which we can push up the pipe/conduit that the optic fibre is lay in. The copper reel is then traced using the electronic detection equipment and is accurately located like any other underground service.

The moisture level on the surface being scanned greatly impacts the accuracy of the scan. Excessive moisture enhances conductivity, causing the equipment's signal to bounce back and resulting in subpar readings.

Performing a concrete scan becomes particularly challenging on newly poured concrete that is less than three months old due to its higher moisture content. Other surfaces that pose difficulties for scanning include those with heavy insulation, as well as marble and granite.

There are a number of different methods we use to locate underground services. The best and most common way to locate an underground asset is by using electromagnetic methods. This is done by using a transmitter and receiver. The transmitter is used to emit a signal through the pipe and cable which is then picked up using the receiver. Other methods we utilise include GPR (Ground penetrating radars) primarily used to locate non conductive pipes such as PVC water mains and poly pressure sewer rising mains. At Provac Australia we use the most advanced, state of the art electronic detection equipment. We accurately locate, mark and utility map all electronic locations on every job.

Electronic Locations are extremely accurate in most cases but are still only classified as ‘Class B’ locations in the Classification of Subsurface Utility ‘AS 5488’ guidelines. Electronic Locations must be safely potholed via hand excavation or with a Vac truck so that a visible confirmation of the underground asset can attain a ‘Class A’ location in accordance with the Classification of Subsurface Utility ‘AS 5488’ guidelines.

Yes. We often locate all underground service house connections for our clients. This is often required by home owners and property developers when looking to demolish or renovate external structures.

Ground Penetrating Radar (GPR) is a non-invasive technology that detects buried utilities like gas, electrical, water, and telecom lines, as well as other subsurface features, using radar waves. GPR emits electromagnetic energy into the ground, which bounces back and is detected, providing information on the depth and composition of subsurface features. It helps reduce damage risk in construction and engineering projects by locating underground utilities before excavation.

Yes, Ground Penetrating Radar (GPR) is generally safe to use. It emits low-power electromagnetic waves and doesn't involve ionising radiation like X-rays. However, users should be cautious of electromagnetic interference, follow guidelines on safe distances, consider environmental impacts, and adhere to any local regulations. Proper training and awareness of potential risks are important for a safe GPR operation.

Ground-penetrating radar (GPR) is an effective and efficient technology used to survey subsurface features and structures. Its accuracy is largely dependent on the quality of equipment, operator skill, and subsurface conditions. GPR offers high-resolution imaging with a depth resolution that can range from centimetres to meters, providing valuable insights into the subsurface. Despite some limitations, such as interference from metal objects or other sources, GPR is a reliable and valuable tool for subsurface imaging and often provides accurate results.

Our state of the art Radio Detection equipment has been capable of accurately locating underground services up to 10m deep below the earth’s surface.

Yes. It is your legal obligation to use a Before You Dig Australia accredited Locator to locate all underground services before you commence any excavations. If you excavate without first consulting a DBYD accredited locator and an asset is damaged, you will be held liable for the damages and all costs associated with that damage.

Yes, Ground Penetrating Radar (GPR) can identify underground utilities like pipes, cables, and conduits by analysing radar reflections. It's widely used in construction to prevent accidental damage during excavation and to map utility locations.

Yes, Ground Penetrating Radar (GPR) can be used in water, snow, and ice. It helps measure sediment layers underwater, snowpack properties, and ice thickness. However, effectiveness varies due to factors like conductivity and equipment adjustments needed for each medium.

Non-destructive digging (NDD) is invaluable for projects requiring precision and minimal disruption, such as utility installation and maintenance, roadworks, and infrastructure upgrades. It is ideal for landscaping, site preparation, and environmental assessments, where preserving existing structures and minimising impact are crucial. NDD is also essential for repairing or replacing underground utilities, building and construction projects, and emergency response scenarios, offering a safe and efficient way to manage subsurface work while protecting existing infrastructure and the environment.

Consulting with Provac’s experts can help determine if NDD is suitable for your project. They will assess the site conditions, project requirements, and potential risks to recommend the most appropriate method.

Non-destructive digging (NDD) offers several advantages over traditional excavation methods, primarily in terms of precision, safety, and environmental impact. Unlike traditional excavation, which often involves digging with heavy machinery that can damage underground utilities and structures, NDD uses techniques such as vacuum excavation or hydro excavation to safely and accurately remove soil without causing disruption. This method significantly reduces the risk of damaging existing utilities, enhances worker safety, minimises surface disruption, and is more environmentally friendly. Additionally, NDD can lead to cost savings by preventing costly repairs and project delays associated with utility damage, making it a more efficient and reliable choice for sensitive or complex excavation tasks.