Therefore, the "broader stopearea, smaller stope span" design philosophy for the mine are proposed.
因此,对于该矿提出了“大盘区、小跨度”的设计理念。
2
The principle and methods to determine the reasonable thickness of melting layer and stopearea are introduced here emphatically.
文中还着重介绍了融化层合理厚度和所必须采场面积的确定原则和方法。
3
On the basis of rock mass mechanics model of cracking plate structure, it derived the calculation equation for the equivalent exposed area of mine stope.