怎么没有人回复呢?难道大家都是搞煤矿的? Gk*u^J(
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! E2'Wzrovlo
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: YCD|lL#
2.21 Subsidence ->b5"{t
In Block Caving mines, it is typical that the cave is vertical until sloughing is initiated '#f<wfn
after which the angle of draw may approach 70 degrees from the horizontal, particularly MW7~=T
at the end of a block. _d@YLd78P
Source: Fleshman and Dale 'Gn>~m
2.22 Subsidence d/7R}n^
Preliminary design of a block cave mine should assume a potential subsidence zone of <?KPyg2
45-degrees from bottom of the lowest mining level. Although it is unlikely that actual <a"(B*bBd
subsidence will extend to this limit, there is a high probability that tension cracking will =HCEUB9Fs
result in damage to underground structures (such as a shaft) developed within this zone. jw:z2:0~
Source: Scott McIntosh YGo?%.X
2.23 Subsidence &s+l/;3
In hard rock mines employing backfill, any subsidence that may occur is always vertical tn5%zJ#+
and nothing will promote side sloughing of the cave (even drill and blast). SUc%dpXZa
Source: Jack de la Vergne