怎么没有人回复呢?难道大家都是搞煤矿的? ^!O2Fw
我只知道我们选择采矿方法时,如果地表有主要建筑物和铁路之类的,我们就不选择空场法和崩落法,都必须用充填法,可是我们的采矿沉陷应该如何处理呢?请求群里高手指教啊! ">nFzg?Y
自己查到了北美著名的McIntosh Engineering 采矿公司的Hard_Rock_Miners_Handbook这本书的,他对采矿沉陷的介绍只有一点点,并且还没有正式出版,只是在书的待续目录里有,先奉献上: X4"[,:Tw
2.21 Subsidence b+BX >$
In Block Caving mines, it is typical that the cave is vertical until sloughing is initiated DyQvk
after which the angle of draw may approach 70 degrees from the horizontal, particularly ,- _ReL
at the end of a block. H$&P=\8n
Source: Fleshman and Dale prxmDI
2.22 Subsidence 5zt5]zl'
Preliminary design of a block cave mine should assume a potential subsidence zone of ; d}
45-degrees from bottom of the lowest mining level. Although it is unlikely that actual eXmYw^n
subsidence will extend to this limit, there is a high probability that tension cracking will ~SEIIq
result in damage to underground structures (such as a shaft) developed within this zone. >~&7D`O
Source: Scott McIntosh i^/H>E%u
2.23 Subsidence pf0uwXo
In hard rock mines employing backfill, any subsidence that may occur is always vertical /jOug>s
and nothing will promote side sloughing of the cave (even drill and blast). 1EHNg<J(
Source: Jack de la Vergne