怎么没有人回复呢?难道大家都是搞煤矿的? u4B, |_MK
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! xbrxh-gV
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: hNUAwTH6
2.21 Subsidence 9Qp39(l:
In Block Caving mines, it is typical that the cave is vertical until sloughing is initiated W<TW6_*e
after which the angle of draw may approach 70 degrees from the horizontal, particularly UC^&&
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at the end of a block. Ea1{9>S
Source: Fleshman and Dale hu\HK81m
2.22 Subsidence !cw<C*
Preliminary design of a block cave mine should assume a potential subsidence zone of "s2?cQv{#
45-degrees from bottom of the lowest mining level. Although it is unlikely that actual "|`8mNC
subsidence will extend to this limit, there is a high probability that tension cracking will $*K5
result in damage to underground structures (such as a shaft) developed within this zone. VE^NSkOa&
Source: Scott McIntosh H[V^wyi'z
2.23 Subsidence wXDF7tJh
In hard rock mines employing backfill, any subsidence that may occur is always vertical FCQoz"M
and nothing will promote side sloughing of the cave (even drill and blast). *x[B g]/
Source: Jack de la Vergne