Andrew's expertise lies in identifying the potential for acid and mine drainage and spontaneous combustion, recommending prevention and management strategies, demonstrating the effectiveness of management strategies, and reviewing mine closure plans. He combines field-work, numerical modelling, and laboratory testing to guide decision-making and provide evidence on the performance of management strategies.
Andrew focuses on materials characterisation, oxygen supply that supports oxidation of sulfidic wastes and spontaneous combustion, and water infiltration that leads to the transport of reaction products. He has addressed issues in waste rock dumps, tailings dams, pit walls, coal overburden piles, and heap leach piles in various climates including arctic, temperate, and tropical. He collaborates with other specialists and regularly publishes case studies at conferences. He has worked for a wide range of clients in various countries.
