StockTwin — Run-of-Mine Stockpile Twin (Built Truck by Truck)
A run-of-mine stockpile built the way one actually is: by trucks, one load at a time, following a dump plan, on ground they have to be able to climb. StockTwin routes every load over the trafficable surface, stands the material at its angle of repose, dozes the heaps into a floor, sorts each load down a real face with the Gray-Thornton kinetic-sieving model, and then reclaims in campaigns, so you can measure the three questions that matter: how much the pile homogenises the feed (variance reduction against the 1/N independent-layer bound, withheld where unreliable), where each reclaimed tonne came from (a per-cell lot ledger whose fractions sum to one on every cut), and how much size segregation biases the cut. Twenty-two scenarios across six axes, 22,656 placed loads, every one relaxing to ZERO cell pairs over the angle of repose, gated on the actual artifact. The physics is the separately published bedblend package; this repo declares none of its own. Synthetic and MineLib-public data only. Not a blending optimizer and it emits no plant setpoint.
