A multi-scale theory for solid-granular transition due to fragmentation

岩块从固体(岩体)向粒状(矿石)转变过程中的块度和块度的预测是洞穴采矿作业中最关键的问题。目前的做法依赖于没有骨折基本原理的经验工具，因此不能可靠地预测破碎过程和碎片大小。这可能会导致巨大的经济损失，因为采矿点受损、安全预防措施受阻以及矿山关闭。该项目将开发一种新的理论和模型来描述这种固体到颗粒的转变，并开发用于模拟洞穴采矿作业的计算工具。预期的好处和结果包括更安全的运营，以及更好地控制生产计划和预算。

The prediction of rock fragmentation and fragment sizes during its phase transition from solid (rock mass) to granular (ore fragments) is the most crucial problem in a cave mining operation. Current practice relies on empirical tools without fundamentals of fracture, and hence cannot reliably predict the fragmentation process and fragment sizes. This can lead to huge economic loss due to damage to extraction points, hold-ups for safety precautions, and mine closures. The project will develop a new theory and models to describe this solid-granular transition, and computational tools for simulations of cave mining operations. The expected benefits and outcomes include safer operations, and better control of production schedule and budgeting.