Engineering Surveys
A Comprehensive Range of Surveying Services

With more than thirty years experience and thousands of surveys completed successfully, D. S. Dorland Limited will deliver professional results for your projects and surveying requirements.

Below is a list of typical engineering surveys and services we offer.
Click on the links below for helpful definitions

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Underground Production and Development Survey

Underground surveying identifies and maps resources and assets below ground in the initial phases of mine development. This can include the position and depth of ore resources existing utilities structures and potential hazards that could impact on planned construction projects.

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Underground Construction Layout

Underground Construction Layout plans are surveys required to map plan and develop underground tunneling building utility and production areas.

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Engineering and Construction Layout

Engineering and Construction Layout is used to aid in the mapping of underground resources assess potential mining locations and guide the development of underground tunneling and infrastructure ensuring it is targeted to rich productive deposits.

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Aggregate Resources Site Plans

Aggregate Site Plans are required to apply for sand gravel clay earth and bedrock access and production permits in Ontario.

These plans include a general description of the geographic location of the site defining lot concession geographic township local municipality upper tier municipality and territorial district.

They also include mitigation measures monitoring programs avoidance areas temporary avoidance and protection areas and refer to adaptive management plans.

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Industrial Asbuilt Survey

An Asbuilt Survey records the interior and exterior measurements of a structures at progressive stages as it is built or when it is complete. These measurements can vary from the original design.

These are executed as required to confirm that precise measurements are being adhered to per existing specifications or as a reference point for modifying existing plans.

These surveys are used to evaluate the successful completion of development benchmarks or may be required reports for regulating agencies at different stages of construction.

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Dimensional Control Survey

Dimensional control surveys utilize surface independent geomatic technology which allows them to be conducted in or on non-level environments surfaces and moving or vibrating structures.

As the instruments used to conduct these surveys do not need to be level they are essential in the off-shore industry where many platforms are not fixed and are subject to continuous or intermittent movement.

This type of survey is utilized in a wide range of applications such as 3D capture, topographical surveys, alignment surveys, replacement pipe-work, mining surveys, structural steel surveys, drill rig alignments, ship repair and building, laser scanning and 3D modeling.

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Photogrametric Survey

Photogrammetric Surveying or photogrammetry is the preparation of maps and plans from aerial or ground images.

These images are analyzed to provide precise dimensions define the nature and content of physical features patterns of electromagnetic radiant imagery and other phenomena which allow the generation of 2D or 3D digital models of measured areas and objects.

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Volume Survey

A Volume Survey is a survey that accurately measures and determines the volume of buildings holding containers or to calculate the size of sand gravel clay earth and bedrock deposits or stockpiles.

The qualitative and quantitative information acquired can be mapped using aerial photography video or in 3D format as specified for a project.

Volume Surveys are used to provide a measure of quantities for inventory sale and purchase.

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