Case Study - Quarries
Surveying a large quarry used to take a long time, the surveyor would need to conduct the survey on foot, manually surveying individual points before processing the data in the office. Using the MDL vehicle mounted scanning system, we can now drive around the site and survey many kilometers per day, collecting highly accurate and highly detailed data.
Instead of collecting a small number of points per hour as per conventional survey methods, the Dynascan can scan many hectares in the same period, with millions of data points. The system can scan 150m from both sides of the vehicle at a speed of 10km/h.
As the information is collected, the operator can view and check the coverage in real time within the vehicle. The data collected can be meshed (see image - left) and highly accurate volumes can be computed by identifying the base of the stockpile.
We provide surveys for mineral workings of all types. Our experienced surveyors include graduates from the Camborne School of Mines on hand for volumetric surveys, boundary survey, reserve computations and stockpile audits. Our in-house software is specially designed for efficient processing and display of survey data, which can be provided in industry standard formats such as Autocad DXF and DWG, Microstation MX format and shapefiles etc...Learn about our underground mining survey services
The Dynascan comprises a pod mounted on the roof of a vehicle that contains motion sensors to remove the effects of pitch and roll of the car and GPS antenna for positioning, a second GPS antenna mounted forward of the pod allows for differential positioning - enabling the vehicle heading to be accurately calculated.Visit the MDL website to Learn More
Case Study - Coastal Monitoring
The Dynascan 3D mobile mapping system is ideal for surveying large coastal stretches and it allows for scanning to be carried out in locations where surveying would normally be impossible. The Dynascan can be mounted on a quad bike (or similar vehicle) and driven along the beach. The mapping data can be particularly useful for updating electronic navigation charts and monitoring coastal erosion.
For surveying inaccessible rock faces, where it is not possible to survey from the shore, the Dynascan unit can be mounted on boat. We can also combine the data with results from an echo-sounder so that the sea-bed can be mapped as well.
The image (left) shows a point cloud collected from a quad bike that was driven along the beach, with a Dynascan unit mounted on a specially constructed frame.
We work worldwide and recently completed a project in Oman where we used a long range terrestrial laser scanner to survey a complex rock face and we combined this data set with bathymetric data from an echo sounder.
Complete scans of quarries and mines
Pre and post blast comparisons
Port and harbour surveys
Please note that this is by no means a complete list! Please contact us to see if our services are useful for your application.
Visit Merrett Surveys for a complete list of our survey services