分析了国内外矿山无底柱分段崩落法结构参数演变过程后指出 ,继续增大分段高度由于诸多因素的限制 ,在我国并不适宜推广应用 ,而增大进路间距却是减少采准工程量、降低采矿成本、增大一次崩矿量、提高采矿强度和劳动生产率的主要途径。 After analyzing the evolution process of structural parameters of subsea caving at home and abroad, it is pointed out that it is not suitable for our country to continue to increase the height of sub-section because of the limitation of many factors. However, The amount of works, the cost of mining, the amount of ore per unit increase, and the main means of increasing the intensity of mining and labor productivity.