加拿大矿业最重要的问题不是现有企业的经营费，而是未来工程项目的资金来源。未来深部开采将用效率非常高的、可严格控制的采矿方法。矿山的主要特征是掘进巷道断面较小，岩层支护更加有效，爆破技术非常精确，物料运报系统高效、可靠；设备尺寸将越来越小，设计得效率高、维护量少。溜井损坏已逐渐被人们接受，其结果是溜井的重新掘进和定位变得很普遍。 The most important issue for mining in Canada is not the operating expenses of existing businesses but the source of funding for future projects. Deep mining in the future will use very efficient and tightly controlled mining methods. The main features of the mine are small tunneling section, more effective rock support, blasting technology is very accurate, material handling system is efficient and reliable; equipment size will be smaller and smaller, designed to be efficient, less maintenance. Slurry damage has gradually been accepted, the result is the re-tunneling and positioning has become very common.