在矿床与周围的母岩均不坚固,一经开掘必定陷塌的地方实行采矿时,为了避免地表沉下与坑内崩落,必须随着采掘作业的进行以废石充填采空的采矿场。这种采掘作业的方法叫做充填采矿法。充填采矿法是一个成本较高的采矿法,因此仅对于高品位矿石或避免崩落的地方可以使用。至于低品位的矿床,也有使用这种方法的,这是由于其地盘特别适于充填,并有许多节省劳力的方法,能使成本降低的缘故。在地盘压力大的地方,必须加以致密的充填,并且只能留出工作人员得以进行工作的小空隙,这样充填法便成为成极高的方法了。反之在充填前虽开掘成一个相当大的采矿场也不发生任何影响的地盘,大部矿石又可以利用重力来搬运 In mining and the surrounding parent rock are not strong, once digging must collapse place mining, in order to avoid surface subsidence and pit collapse, mining operations must be carried out with waste rock to fill the empty mining field. The method of mining operations is called the filling mining method. Fill mining is a costly mining method that can be used only for high grade ore or to avoid collapse. As for the low-grade deposits, this method is also used because the construction site is particularly suitable for filling and there are many labor-saving methods that can reduce the cost. Where there is pressure on the site, it must be densely packed and only allow for small gaps where staff can work. This filling method has become a very high method. On the contrary before digging into a rather large mining site does not have any impact on the site, most of the ore can use gravity to carry