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PostPosted: Mon Oct 29, 2012 3:34 pm 
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Joined: Mon Feb 01, 2010 11:23 am
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Location: Cape Town
Real Name: Cormac Tooze
We are having an ARF meet this Saturday 3rd Nov at Lower Silvermine.

It is co-sponsored by CityROCK, If it rains it will move to Sunday 4th

Volunteers to please PM me,

Cheers
Cormac


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PostPosted: Tue Oct 30, 2012 12:45 pm 
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Location: Cape Town
Real Name: Cuan Lohrentz
Come on people ... some assistance would be appreciated. :afro:


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PostPosted: Tue Oct 30, 2012 12:49 pm 
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Real Name: Wesley
Always keen, but away this weekend. :(


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PostPosted: Tue Oct 30, 2012 12:54 pm 
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Real Name: Warren Gans
It should also be reminded that as per a previous thread there is also a Water World rebuild this weekend. Yes, I agree that there are many climbers and few things to do, but it would seem that the Water World rebuild had first first dibs for people. Apparently there are only about 10 climbers in Cape Town.

Perhaps if you had chosen a date that allowed less conflict it would have helped your cause?

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PostPosted: Tue Oct 30, 2012 1:02 pm 
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Real Name: Cuan Lohrentz
oh poop ya. meh. forgot about that :( Lets try organise my life :P


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PostPosted: Tue Oct 30, 2012 2:44 pm 
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Real Name: Cuan Lohrentz
Hey all, if I remember correctly the Fischer chemical we use is rated to some 70 MPa (can anyone remeber from the course, but that's what I recall).
Anyway, I was doing a little research on this in relation to the compressive strength of some rocks.
So check out the PDF below if you're interested:
https://www.rocscience.com/hoek/corner/11_Rock_mass_properties.pdf <--- Page 6 for the good stuff :)

To put it in perspective, Silvermine is a sandstone which has been lightly metamorphosed so is somewhat quartzitic (the individual sand grains have been fused together under heat [+- 300 degrees C] and pressure, making the overall rock quite a lot stronger than your average sandstone)...Anyway, we can thus expect Silvermine rock to have a compressive strength likely upwards of 100 MPa according to the doc attached.

This is no biggie, things however would become more questionable were we using mechanical anchors in more poor quality rock....A true sandstone (Lainsburg and karoo) or more silty/shaley material where the mechanical anchor actually can crush the rock inside the hole and thus not hold properly.

I'm not sure what point I was trying to make here...just provide some information,...read it or not.

These tests to actually see what the rock strength are, are pretty simple to perform. Might be interesting to take a few larger boulders (15 - 20 cm) sometime from a bunch of different crags and have them tested...I'm sure I could find some geotechnical student at UCT or Stellies willing to help with this :)

Cheers,
Cuan


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PostPosted: Tue Oct 30, 2012 2:54 pm 
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Location: South Africa, Garden Route
Real Name: JuliHeps
Maybe hendrik...hehe..or Claire ;P


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PostPosted: Tue Oct 30, 2012 3:37 pm 
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Real Name: Jacques Redelinghuys
I'll be there, yo!

Its a good alternative for those of us who can't be traveling to Montagu, and still want to contribute a bit....

Good on ya, mates!

jaak :thumleft:


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PostPosted: Wed Oct 31, 2012 8:21 am 
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Real Name: Cuan Lohrentz
Hey guys...

Anything specific we should bring with?
Harness, rope, pruissic?, spanner?, hacksaw?, etc, etc, etc?

Cheers,
Cuan


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PostPosted: Thu Nov 01, 2012 3:04 pm 
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Joined: Mon Feb 01, 2010 11:23 am
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Location: Cape Town
Real Name: Cormac Tooze
Kit List for ARF:
Helmet (if possible)
Harness, rope, draws, harness, spare snap gates/ biners for clipping stuff + general climbing gear
Comfortable climbing shoes
Belay device pref gri-gri or one that locks off easily
Rain Jacket and pants if possible
Warm layer of clothing (including gloves and beanie - optional)
Sturdy and comfortable walking shoes/ lightweight boots with rubber sole that has good grip
Packed lunch and snacks
Water - about 2 liters/ day
17mm spanner on biner (if possible)
Hammer on tether (if possible)
Rags (to clean off epoxy/ glue)
Insulation tape
Empty plastic bottle (milk, Coke or household cleaner) top removed and lanyard attached, Used to scrape left over epoxy into.

If you have the following you can bring that too!
Hacksaw to cut Stainless Steel
24V/36V Cordless rotary hammer drill if you have one (charged)
Cordless angle grinder (charged)
White chalk sticks for marking drill holes
Torque wrench with 17mm Socket


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PostPosted: Fri Nov 02, 2012 8:42 am 
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Real Name: CityROCK
This is what you are currently climbing on when you clip bolts at Lower Silvermine....
So help us make sport climbing safe again.
9 am tomorrow morning, Lower Silvermine parking lot.


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PostPosted: Fri Nov 02, 2012 8:43 am 
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Real Name: CityROCK
this is what we are installing.
hard to resist.


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PostPosted: Fri Nov 02, 2012 3:31 pm 
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Real Name: Warren Gans
Turtle I agree that we live in a consumer driven world and so we should make life as easy as possible for people, but do you think that competing for ways to improve that world is really the best solution? Sure it is democratic, but ultimately who looses?

I would agree that the Waterworld climber is not the Silvermine climber, but as I have had no positive replies from them I am forced to assume that they have either opted for the closer (more consumable) option, or that they don't care.

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PostPosted: Fri Nov 02, 2012 4:43 pm 
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Real Name: Jacques Redelinghuys
Ai Warren

Your assumption that ppl(all ppl) always choose the easiest way is a bit wrong, I feel.

Some have legit reasons to stay, like no money(eish), or in my case I'm running a 21k race on Sunday(my weight-loss-wannabeasuperstar program is finally beginning to work for me :thumright ). And I even get to do a little something(like a whole bunch of us did for Waterworld 2 or so years ago) for my beloved sport - once again thx for those who organized it! A super weekend is in the making here...whoop!!!

As for the reason why they dare not to communicate to you, I can only assume. Maybe they don't think its necessary to ask for permission, or, like in my case, some simply don't have time to always reply or email everyone.

Just be careful: I think we all are trying to gently attract ppl to helping, getting involved and getting rid of that old 'why-hasn't-SOMEONE-rebolted-this-or-that' mindset. Lets encourage help, ALL SORTS of help, from ALL SORTS OF PEOPLE wherever and whenever we can!

Whoop for this weekend, yo!
:afro:


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PostPosted: Wed Nov 07, 2012 3:46 pm 
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Location: Cape Town
Real Name: Lee de Smidt
I know it's short notice and a week day but we are going to Silvermine lower crag tomorrow to continue the re-bolting.

So far it's just 2, maybe 3 of us, so if you have the day off or can get off work early any help would be much appreciated. We will be getting there around 1pm.

PM me if you are keen to come.

Chias!


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PostPosted: Wed Nov 07, 2012 3:51 pm 
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Location: Cape Town
Real Name: Cuan Lohrentz
Sup...You can finish Vlad the Impailer is Cormac thinks that's cool. Most of the holes are already drilled (I think the top anchors, second last and first bolts need to be finished drillinh.).
You should notice the bolts have moced and there is an extra one now added to reduce the risk of dangerous falls. Unfortunately I wont be able to join :(


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PostPosted: Thu Nov 22, 2012 1:03 am 
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Real Name: Ben Olivier
I had to bail out last ARF due to an injury. Thursday and Friday however is Thanksgiving holidays for me (benefits of working with the yanks).

Is there still any work needed at Impaler or other climbs? Would be keen to go play and do some work there these two days. (22/23 Nov)...

Cormac?

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PostPosted: Thu Nov 22, 2012 7:41 am 
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Location: Cape Town
Real Name: Cormac Tooze
Funguye wrote:
I had to bail out last ARF due to an injury. Thursday and Friday however is Thanksgiving holidays for me (benefits of working with the yanks).

Is there still any work needed at Impaler or other climbs? Would be keen to go play and do some work there these two days. (22/23 Nov)...

Cormac?


Vlad is now done!
I gotta work during day. Contact Robert at CR, he sometimes will do day meets, else there is an ARF meet at "The Mine" on 1 Dec

Cheers
Cormac


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