desert dweller
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Post by desert dweller on Sept 4, 2015 10:47:37 GMT -8
It's a pretty big rock. link |
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amaruq
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Post by amaruq on Sept 4, 2015 10:59:22 GMT -8
"It certainly has had a major impact on us, as all of our trips depart from the base of the dam," he said. Not yet it hasn't. |
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BigLoad
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Post by BigLoad on Sept 4, 2015 10:59:24 GMT -8
I don't think stablizing it will be a real long-term fix. It will probably have to eventually come down in smaller pieces over a longer period of time. Maybe that's what they expect.
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rebeccad
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Post by rebeccad on Sept 4, 2015 13:09:05 GMT -8
I don't think stablizing it will be a real long-term fix. It will probably have to eventually come down in smaller pieces over a longer period of time. Maybe that's what they expect. I was thinking the same thing. Can't see them succeeding in preventing the natural process, but maybe they can keep the rockfalls small enough to cope with them. |
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Post by Lamebeaver on Sept 5, 2015 16:40:26 GMT -8
Too bad it's not going to hit the dam itself.
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Deleted
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Post by Deleted on Sept 5, 2015 18:49:09 GMT -8
Too bad it's not going to hit the dam itself. In principle I have to agree. Like many other large dams, the Glen Canyon Dam drastically changed the ecosystems of the Colorado River, brought about the extinction or extirpation of native fishes, and endangered others now on the verge of extinction. For that we got a huge reservoir and playground for boaters that causes the loss of much more water to evaporation than would be possible before. In addition we got habitat for introduced fish species replacing native species — and with that another playground for anglers down river. Ultimately the flow of the river was drastically reduced, and the dam did not serve it's claimed purpose. |
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amaruq
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Post by amaruq on Sept 8, 2015 4:19:02 GMT -8
The high-angle rope work costs a premium, but from an engineering standpoint it's best to stabilize the rock with bolts then proceed to break it up (from the bottom up) with pneumatic hammers. Set a clear zone at the bottom to allow the debris to fall safely and tidy up the pile at the end of shift.
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walkswithblackflies
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Post by walkswithblackflies on Sept 8, 2015 5:06:18 GMT -8
Chuck Norris strikes again.
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Post by Lamebeaver on Sept 9, 2015 5:57:44 GMT -8
Some of the old timers will remember when this forum was invaded by a group of house-boaters, which prompted some of us to retaliate by making donations to The Glen Canyon Institute. Good times. |
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Post by 1camper on Sept 10, 2015 13:53:16 GMT -8
Seems like stabilizing it would bring liability if someone did get hurt at the boat ramp or someplace under it down the road. Why not just break it off and know when it's going to fall?
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Post by High Sierra Fan on Sept 10, 2015 17:31:01 GMT -8
Seems like stabilizing it would bring liability if someone did get hurt at the boat ramp or someplace under it down the road. Why not just break it off and know when it's going to fall? i gather because it's right above buildings and installations they don't want squashed. "The area below the slab includes a passageway to a boat ramp, a machine shop and water and power facilities for the Glen Canyon Dam, located in Page near the Arizona-Utah border." |
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Post by 1camper on Sept 10, 2015 18:13:18 GMT -8
30 x 50 x 4' isn't that big a footprint but I'm guessing they did the math. Losing a shop is better than someone getting killed and losing a shop.
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Post by High Sierra Fan on Sept 11, 2015 8:00:25 GMT -8
True, remove the shop tools and take the hit. But the "power and water facilities" that serve the dam are connected vie infrastructure without doubt, pipes etc. that's much more fixed in place.
Plus the blast radius for that tonnage hitting the ground would be extensive and very difficult to contain, though some sort of deflection structures would be possible, just expensive.
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Image Credit / Coolkat
