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根据加拿大哥伦比亚露天矿通过生产试验和理论研究提出的方法,对俄罗斯4个采用热力扩孔工艺的铁矿公司的热力扩孔参数进行了分析计算,认为这种计算方法具有很高的精确性。
According to the method proposed by Canadian Columbia Open-pit Mine through production tests and theoretical studies, the thermal expansion parameters of four iron mines in Russia using thermal reaming process are analyzed and calculated, and the calculation method is of high accuracy.