GPR, Ground Penetrating Radar, is quite simply the geophysical technique of sub-surface imaging and surveying.
If you require GPR services to be performed anywhere in Melbourne or greater Victoria before you begin any excavation work, Provac are at the helm to provide you with timely and accurate reports.
When you have construction plans, it’s important to get a thorough understanding of what is going on beneath the surface. You have a duty of care to ensure that any excavation work or activities undertaken do not affect the underground networks or utility services.
Ground Penetrating Radar is a sophisticated and non-destructive method of sending tiny impulses into the ground and recording the strength and time taken for the signal to return. Ground Penetrating Radar can locate both metallic and non-metallic underground utilities.
GPR is a great way to locate buried water pipes. Water pipes can pose a significant issue if damaged. The water pressure in a water pipe is high, so imagine if you were to commence excavation work without knowledge of a waterpipe below.
If the water pipe was compromised and broken, it could result in water escaping in a high-pressure situation, taking with it dirt and surrounding debris. Not only would this pose a significant threat to the workers and those in the vicinity, it can also create a whole host of other issues.
A burst water pipe can release pressure that might disturb other underground utilities, and thus a costly repair bill will be coming your way.
GPR, ground penetrating radar, can also identify underground power cables. Power outages can cause much inconvenience to those affected, so it is important to identify the location of any underground power cables before undertaking any excavation or digging work in.
For a non-destructive, accurate and efficient way to get a deeper picture of the underground environment, call Provac for our GPR, ground penetrating radar service. We cover all areas throughout Melbourne and greater Victoria.
All our technicians are Dial Before You Dig certified, so you are in good hands.
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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.
Yes. It is your legal obligation to use a Dial Before You Dig 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. 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.
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.
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.
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.