Drone Surveys, LiDAR and Live Blast Design: Quarry Technology Is Catching Up with Mining

Autonomous drone surveys, LiDAR scanning, and real-time volumetric reconciliation have been standard practice in large-scale open-cut mining for much of the past decade. In the quarrying sector, the same technology has been slower to arrive, held back by the cost of standalone survey systems and the difficulty of integrating survey data with the operational systems quarry managers actually use. That is changing.

The Survey Problem in Quarrying

Traditional quarry survey involves a human surveyor visiting the site on a periodic basis, typically monthly, taking manual measurements of the pit, stockpiles, and infrastructure, and producing a report that arrives several days after the visit. By the time the data reaches operational management, conditions on the ground have already changed. The stockpile measured last Tuesday is not the same stockpile being dispatched today.

The consequences cascade through the business. Working capital locked in stockpiles cannot be accurately valued because nobody knows precisely what is in them. Reserve depletion models run on assumptions rather than current ground truth. Mine life estimates, which drive capital expenditure decisions, are based on models that may be months or years out of date.

Autonomous Daily Surveying

SiteLive's DroneLive module addresses this by treating each quarry as a self-surveying asset. Autonomous drone flights conducted every day re-measure the pit, stockpiles, and build, producing updated volumetrics that are reconciled before the morning shift begins. The scan is overlaid on the design and BIM surface, flagging deviations the moment they appear. Measured ground movement is set against crew and plant hours, giving a verified productivity number rather than a claimed one.

BlastLive extends the same discipline to blast design. Drill-and-blast patterns are reconciled against the surveyed movement using powder factor and Kuz-Ram fragmentation forecasting. Under-charge and oversize risk are flagged automatically. The question "is the blast working?" gets answered by data, not by the shot-firer's assessment after the fact.

What This Means for Project Managers

For construction project managers working with quarry-sourced materials, the availability of time-stamped daily survey records and live chain-of-custody documentation changes what is possible in terms of claims management and materials accountability. Mitchell Smith, Director of MNL Projects, which manages construction projects across ACT, QLD, and NSW, operates in an environment where the quality of supply chain documentation has direct implications for project programme, payment claims, and compliance. As quarry operators adopt platforms that produce this level of data automatically, the bar for what constitutes adequate supply chain documentation on a construction project will rise accordingly.

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