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Thread ID: 115851 2011-02-06 20:01:00 Pike River open cast mining ? Digby (677) PC World Chat
Post ID Timestamp Content User
1175799 2011-02-07 03:41:00 I personally would be happy with that. Although of course there will need to be transparency and constant third-party assessors coming in often to check they really are doing what must be done.

That is done, and they encourage groups to go on tours etc of the facility to see what they are doing. They have fully air conditioned merc trucks, just like the ones that do the farewell spit tours, to take you around in.


That said, there will also be hard-line 'greenies' that will oppose any sort of mining, won't listen to any reason, and will spit at you for saying 'I wanna mine'.

They are the ones I'm talking about here.
wratterus (105)
1175800 2011-02-07 04:11:00 They are the ones I'm talking about here.
Yeah, but many are unable to distinguish between the insane and the sane greenies. I'd like to consider myself the sane one haha.
qazwsxokmijn (102)
1175801 2011-02-07 04:42:00 As I see it one of the main probelms is that you have to have somewhere to put the excavated rock. A one hectare area pit, with vertical sides would require the excavation of 1,500,000 cubic metres of rock! Once you have a reasonable area excavated, with the coal removed, you can start backfilling the hole using the newly excavated material. I doubt that this method would be economic, bearing in mind that a deep pit would have to be drained of both water and methane. It may be possible to convert the present access drive to an access trench probably solving the drainage problems, but not the overburden and stockpile problems. Brucem (8688)
1175802 2011-02-07 05:05:00 IMO they just about are.

Sorry Rattii, but there is always one.
Cicero (40)
1175803 2011-02-07 05:11:00 As I see it one of the main probelms is that you have to have somewhere to put the excavated rock. A one hectare area pit, with vertical sides would require the excavation of 1,500,000 cubic metres of rock! Once you have a reasonable area excavated, with the coal removed, you can start backfilling the hole using the newly excavated material. I doubt that this method would be economic, bearing in mind that a deep pit would have to be drained of both water and methane. It may be possible to convert the present access drive to an access trench probably solving the drainage problems, but not the overburden and stockpile problems.

Well put Bruce,
That's why I am querying Tony Kokshoorn's suggestion.
Is it technically possible and economically feasible.
You make a very good point.

And is the rock hard rock or soft rock ?
Digby (677)
1175804 2011-02-07 05:31:00 The CEO was asked that Q. after the accident and said it wasn't economically viable. martynz (5445)
1175805 2011-02-07 07:01:00 Personally, I think it should be Open Cast.

It is 14km from the nearest public road and wouldn’t impact on the environment at all.

Some of the rock may be of value from a Quarry Perspective but it’s a simple matter of backfilling as you go and the end result is flat land where a hill once was.

Here’s a photo of what would wind up with a flat top. Hardly a national disaster.
B.M. (505)
1175806 2011-02-07 07:03:00 wouldn’t impact on the environment at all.
lolwutpear.jpg
qazwsxokmijn (102)
1175807 2011-02-07 07:13:00 Could be a great job for all our hardened criminals.

Don't worry lads its only 150 metres to dig down.
Make a few good tv doco's and our jails would soon be empty.
And bring your own blankets.

And come to think of it all of our white collars criminals too.
Digby (677)
1175808 2011-02-07 07:49:00 You folks talk of 'greenies' as if they are some kind of criminal group.....
When I consider that Aussie twit Russell Norman it is almost true. The trouble with the greens is that a fair portion of them don't really give a stuff about the enviroment it is just a new way to push their commie agenda.
mikebartnz (21)
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