原位浸出力学：尝试使用实验和模型进行理解.pdf

1、Mechanics of In-situ Leaching Attempt at Understanding Using Experiments and ModelsHerbert Einstein MIT Global Summit on Mine Tailings Innovation EinsteinMechanics of In-situ Leaching BackgroundIn-situ leaching and tailings In situ leaching is being used Bulk:Rock Salt,Potash From internal surfaces:

2、Uranium,Copper,Gold In situ leaching Can reduce but not eliminate tailings Leaching is often used in tailings deposits EinsteinMechanics of In-situ Leaching IntroductionIn-situ leaching on internal surfaces in the ground Needs an opening in the ground:Natural Opening such as pores or fractures Artif

3、icially created opening(widening an existing one or crating a new one Need medium going through opening Needs medium to remove/transport mineralsTo understand the mechanics of all this we will show with experiments and models:How one represents fracture networks and flow through fracture networks DI

4、SCRETE FRACTURE NETWORK GEOFRAC&GEOFRAC FLOW/THERMAL FRACTURE FLOW AND TRANSPORT How one creates new fractures or extends existing ones through HYDRAULIC FRACTURING How one creates other openings or extends existing ones through DISSOLUTION EinsteinMechanics of In-situ LeachingBackground and Introdu

5、ctionDiscrete Fracture Network -GEOFRAC/GEOFRAC FLOW/GEOFRAC THERMALFracture Flow and TransportHydraulic FracturingDissolutionConclusions EinsteinFracture Systems-Geometry EinsteinFracture Systems Flow EinsteinGEOFRAC Stochastic Fracture Pattern Model Rita Sousa,Violeta Ivanova,Wei Liprimary process

6、Poisson Planes secondary processDelauney-Voronoi Tessellation GEOFRACs stochastic processes are implemented and optimized in MATLAB.tertiary processRotation and Transalation Fracture System Geometry and Flow represented with Discrete Fracture Network(DFN)Models Einstein Line of Intersection between