怎么没有人回复呢?难道大家都是搞煤矿的? &6@#W]_
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! mNQ~9OJ1
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: 2ophh/]
2.21 Subsidence VF bso3q<j
In Block Caving mines, it is typical that the cave is vertical until sloughing is initiated V[#$Sz[G
after which the angle of draw may approach 70 degrees from the horizontal, particularly IaHu$` v
at the end of a block. [uLpm*7
Source: Fleshman and Dale %.rVIc"
2.22 Subsidence `9`T,uJe
Preliminary design of a block cave mine should assume a potential subsidence zone of U/s! Tb>`
45-degrees from bottom of the lowest mining level. Although it is unlikely that actual }8LTYn
subsidence will extend to this limit, there is a high probability that tension cracking will xbNL <3"a
result in damage to underground structures (such as a shaft) developed within this zone. 4/N{~
Source: Scott McIntosh ">M:6\B
2.23 Subsidence X(npgkVP\
In hard rock mines employing backfill, any subsidence that may occur is always vertical WbwS!F<au
and nothing will promote side sloughing of the cave (even drill and blast). VBN=xg}
Source: Jack de la Vergne