MINE SURVEYING
STREAM is mine survey software that turns your survey data into the numbers a site runs on. Bring in large DEMs, orthophotos and point clouds from drones or LiDAR, and compute stockpile tonnage, cut/fill, cross-sections and pit change over time — with reports you can hand to a client or auditor.
Mining and quarry teams need repeatable volumes and reconciliation from frequent surveys. STREAM handles the large datasets those surveys produce and computes the deliverables directly on the terrain — offline, so sensitive data stays on site.
From stockpile inventory to open-pit progress, the workflow is measurement and reporting on the DEM and point cloud.
The part that decides whether a monthly survey is trustworthy is rarely the volume formula — it is whether the two surveys are comparable at all. Every surface carries its own error, so the difference between two flights is never exactly zero. STREAM makes that explicit: you set a detection threshold, and anything under it is reported as noise rather than as movement.
Volume and tonnage of material piles above a reference base you choose, with material density from a library, plus a print-ready PDF report that gathers every pile in the yard with map numbers matching the table.
Change detection separates movement from error with a detection threshold derived from a confidence level — 90%, 95% (the default) or 99%. Differences under the threshold are not counted as change, so a monthly figure is not inflated by the surfaces' own error.
Co-registration removes the relative shift between two surveys before they are compared: vertical corrects an elevation offset, planar also corrects a tilted seating. Without it, a whole-site bias reads as material moved.
Earthwork volumes above the surrounding terrain, a level you type, the lowest corner of your boundary, another terrain scenario, or your own TIN surface — so the figure matches what the design actually specifies.
Station-based cubature along an alignment, with the section drawings exported to DXF for the report pack.
One command finds the slope faces and writes crest and toe as 3D lines on their own layers — and the layer name is the DXF layer name, so CAD receives clean layers. Ramp and haul-road edges go to separate layers instead of being merged into the bench strings. Experimental: treat the output as a proposal to check, not a measurement.
STREAM does not build block models — it imports the table your estimation software produced and intersects it with the terrain and your pit design, giving the ore/waste split and bench-by-bench tonnage. The import refuses to continue until you state the units, because that is where silent order-of-magnitude tonnage errors come from.
Stream gigabyte DEMs, orthophotos and LAS/LAZ point clouds from any capture pipeline, with no cloud upload — mine data stays on site.
Load the new DEM, orthophoto and point cloud. The previous model stays in the project as a second terrain scenario.
Run co-registration so a relative shift between the flights is removed before anything is compared — otherwise the bias shows up as material that never moved.
Outline each pile, pick the reference base, apply the material density and read volume and tonnage.
Run change detection between the two scenarios at the confidence level you report on, and read deposition and erosion with the volume and its uncertainty.
Inspect bench height, berm width and face angles against the design, in 3D and on section — or extract crest and toe lines and check them as geometry.
Export the map sheet, the DXF drawings and the PDF report with the volume, tonnage and change figures.
| Confidence | k | What it means for the monthly figure |
|---|---|---|
| 90% | 1.65 | The lowest bar: more genuine change is captured, but more of the surfaces' own error is admitted with it. |
| 95% (default) | 1.96 | The usual reporting standard, and the balance most reconciliation is signed off against. |
| 99% | 2.58 | Only large, confident movement is counted. Small but real change is deliberately left out. |
Yes. STREAM computes stockpile volume and tonnage above a reference base you choose, using the material density you set, and exports a print-ready PDF report with every pile in the yard numbered on the site view and repeated in the summary table.
Yes. Change detection reports deposition and erosion with volume and uncertainty between two surveys, which is exactly what pit-progress and reconciliation need.
With a detection threshold. The difference between two surveys is never exactly zero because each surface carries its own error, so STREAM derives a threshold from the confidence level you pick — 90%, 95% by default, or 99% — and anything under it is not counted as change. The figure you report is movement, not the sum of two surfaces' errors.
Yes, that is what co-registration is for. Vertical removes an elevation offset between the two flights; planar also removes a tilted seating. Run it before comparing, or a site-wide bias will be reported as material that moved.
No, and it does not pretend to. STREAM imports the block model your estimation software produced and reads it against the terrain and your pit design — the ore/waste split, bench-by-bench tonnage and class breakdown. Grade estimation from drillholes stays in the software built for it.
Yes, and it is marked experimental for a reason: the lines are a proposal to check, not a measurement. STREAM finds the slope faces and writes crest and toe as editable 3D lines on their own layers, and keeps ramp and haul-road edges on separate layers so they are not merged into the bench strings.
GeoTIFF DEMs and orthophotos and LAS/LAZ point clouds from any capture pipeline, plus block model tables as CSV — all processed on the machine, with no cloud upload.
No. STREAM measures and designs on the terrain and hands the result to CAD as DXF with real layer names. Drafting, title blocks and the rest of the drawing office workflow stay where they are.
The surrounding real terrain when the ground around the excavation is unchanged, a flat level when the design has one formation level, the lowest boundary corner when you want everything above the low point, and another terrain scenario when you are measuring what moved between two surveys.
Yes. STREAM streams gigabyte DEMs, orthophotos and LAS/LAZ point clouds and works fully offline, so mine data stays on site.
Mine survey software takes the surfaces a survey produces — DEM, orthophoto, point cloud — and turns them into the figures a mine reports on: stockpile tonnage, cut/fill, cross-section cubature and period-to-period pit change, each with its reference base and uncertainty stated. STREAM does that part. Drafting, grade estimation and block-model building stay in CAD, the estimation package and the geology software; STREAM reads their outputs and hands its results back as DXF, CSV and PDF.
Free beta for Windows x64. Works fully offline with GeoTIFF, LAS/LAZ and DXF.
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