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 MindHacker
   
Location: Suburbs of DC
Gender: Male
If you spot a terrorist arrow, pin it to the wall with your shoulder.
 |  | Re: drain question.
<Reply # 20 on 12/19/2008 4:42 PM >
|  | | | Posted by Tetrodotoxin
don't do anchors. they probably won't be able to tie it back to you, but what if they do. and what if they do because some idiots found them inviting and end up getting hurt or killed?
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The main problem with adding an anchor is you have to be at the top to make use of it, not that people are going to get killed. People leave anchors on rock faces all the time, and you don't read about these triggering idiotic suicidal behaviour.
Posted by Tetrodotoxin
yeah. good climbing gear cost money. i mean it is meant to save your life though. but if you don't know how to use it you're just as well buying some key chain carabiners and getting 1/4 inch garden twine from the hardware store.
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Please don't ever use these things. Even with only so-so knowledge climbing gear can be effective, especially in a location like this where a fall is not fatal, only bruising. If you use a real carabiner and forget to close it/lock it/use it sideways, it will still withstand most falls. Maybe not a real whopper, but most falls. A dollar store biner will not withstand any falls.
I used ebay to stock up on inexpensive climbing gear. I just make sure to inspect anything I buy from there, especially ropes, and try to buy name-brand.
Posted by zomgw00t
After reading this as an engineering-head, the whole idea of using climbing anchors hammered into the walls has me screaming, "NoooooOOOOoo!" Not so much as there is any immediate danger to you, but because a hole put in the side of a drain by one of those things will allow water to seep through the concrete and erode the dirt away from around the drain (especially in times of heavy flow). That leads to a sink-hole, and sink-holes can be quite catastrophic and difficult to repair. Sure, it would not cost you much of anything... but if you gather where I'm going, it just isn't the best. I also think that if you were to put a little more thought into the ladder idea you could make it work. Try things like extra weight (something as simple as a concrete block) attached to the end of the latter, and then to the end of that add something along the lines of a rubber or abrasive pad. Could work, if you do it right, and it could be pretty inexpensive.
~Teh Chappie
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Not so. A properly installed anchor, especially in a wall above the high-water line, will allow no flow. Especially if it is drilled and not just hammered in (cracks are not your friend). Therefor it will not cause a sinkhole, etc etc. Actually, it might not even pierce the wall, making this even less of a concern.
If you do this you probably want to get some galvanized chain to hang off it down the slide so you can just leave it there and come back to it when you need it.
I think a ladder of some sort would be the best idea, you could have someone hold it at the bottom when the first person goes up, and someone hold it at the top when the last person goes up.
In the name of just throwing sh*t out there, you could also try:
spring loaded pistons that would press against the walls. (learn to pole dance kits have these)
a jack + extension to form a top side anchor by pressing against the walls or roof/floor. Possibly a construction jack / support pole that screws to the right height.
Climbing crampons.
liquid nitrogen + ice picks.
running at it really really fast.
stretching across it feet on one wall, hands on the other.
[last edit 12/19/2008 4:42 PM by MindHacker - edited 1 times]
"That's just my opinion. I would, however, advocate for explosive breaching, since speed and looking cool are both concerns in my job."-Wilkinshire |
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digital_me
   
Location: Colorado
Gender: Male
When the going gets weird, the weird turn pro
| |  | Re: drain question.
<Reply # 21 on 12/24/2008 1:49 AM >
| | | | Posted by MindHacker
running at it really really fast.
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Quote for truth.
I think that anchors combined with chain would be your best bet. If public works finds it and takes it out, oh well. But the city somehow busting your ass for putting anchors in a drain? Doesn't seem likely to me.
If you plan to visit the drain often, put in the work and modest amount of money. You'll be grateful you did, especially when the zombie apocalypse comes and you have easy access to a stronghold nigh on impenetrable to zombies. Your braaaaains will thank you.
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aurelie
Location: pacific northwest
Gender: Female
high tech:: low life.
| | | Re: drain question.
<Reply # 22 on 12/28/2008 5:36 PM >
| | | | thanks all, but i'm probably just going to end up trying a step ladder or making a human totem pole to get to the upper level.
and digital_me, i don't know- if there were enough of them the zombies could just pile on top of each other to gain access. but that situation could be rectified by posting a guard at the outfall to prevent undead pile-up.
reckless thoughts abide; anachronistic and impulsive.
loosely jacketed against the cold and ten thousand worlds for the choosing. |
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junkyard
Location: LaCrosse, WI
Gender: Male
Strategic Beer Command where the metal hits the meat.
| | | Re: drain question.
<Reply # 23 on 12/29/2008 3:23 AM >
| | | | I love the human chain idea, it's simple and it works. Also makes for some good fun when some ass slips  But yeah, anchors work great, and a hammer drill isn't too pricey, I got one for $100 and on 2 batteries it was enough to sink between 1 and 3 holes. depending on the bit and the concrete. For that a 5/16 bolt would be plenty since you don't have much danger of getting hurt. They are easier to drill than 3/8. But for more technical stuff the 36V Bosch is the way to go. That usually gets pulled out in the mines, but isn't light. But a Homer Simpson ladder from 2X4's would also do the trick. Use bolts and washers and use 2 nuts to locknut the bolts and it can be made collapsable, so it doesn't look like a ladder.
I drink gasoline for breakfeast and beer for dinner!
Any problem can be licked with a case of beer and a few sticks of dynamite.
Strategic Beer Command ruling the desert since 1995 http://www.strategic-beer-command.com |
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uLiveAndYouBurn
Location: Beyond
Anarchocommunist
| | Re: drain question.
<Reply # 24 on 12/29/2008 6:26 AM >
| | | | That slide looks familiar.
A dry piece of wood will do wonders, as long as its long enough.
"Aint nothin' to it but to do it"
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