Timeline for How to build a trap to last the ages?
Current License: CC BY-SA 3.0
12 events
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| Jun 16, 2020 at 11:03 | history | edited | CommunityBot |
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| Apr 12, 2018 at 14:14 | comment | added | pluckedkiwi | The flow rate of the tunnel will restrict the amount of water going into the structure, so the fill rate will be abysmal. Additionally, the low point in the tunnel will likely get filled in with debris or otherwise be fouled by growth of barnacles or muscles, further choking off the flow rate. | |
| Apr 12, 2018 at 6:09 | comment | added | Legisey | @DJClayworth It just need to be flat enough. See for example the tide speed at Mont St-Michel in France. If you replicate this in a tunnel, it will be difficult to survive. Also the highest tides are in Canada and are about 50 feet. | |
| Apr 12, 2018 at 3:37 | comment | added | DJClayworth | Nice idea but tides only rise about 10-30 feet. Building a tunnel system that takes you 12 hours to get out of in that height will be pretty tricky. | |
| Apr 11, 2018 at 15:48 | comment | added | Sherwood Botsford | You need a second passage from the bottom of the high tide source to a low point in the passage. You want the passage to flood behind them first, so that retreat is difficult. | |
| Apr 11, 2018 at 11:09 | history | edited | Legisey | CC BY-SA 3.0 |
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| Apr 11, 2018 at 9:56 | comment | added | Legisey | @doppelgreener yes. The entry is on the left. Explorer will go down first while water is low. Then water will go up faster than explorer can run back up. | |
| Apr 11, 2018 at 9:43 | comment | added | doppelgreener | So the trap is the structure with a complicated path part? | |
| Apr 11, 2018 at 9:39 | comment | added | Legisey | @doppelgreener Yeah I thought of that after i made the drawing. But it is not a problem if the tunnel stays full. It could help prevent intruders from that side. Concerning erosion, depending on the rock type, it could take very long. Granite erosion could be as slow as a few meters per million years. Granted this might be a problem on the very long run, but could be mitigated with good design and materials. | |
| Apr 11, 2018 at 9:18 | comment | added | doppelgreener | That tunnel will become permanently filled with water after the first high tide -- that water doesn't have any way to drain away. I suggest you add a drainage plan somehow. Also, supposing the water is filling and leaving it twice a day, you'll be dealing with erosion from flowing water. If you want this trap to last decades let alone ages you probably need to have a plan for how the erosion gets accounted for. | |
| Apr 11, 2018 at 8:27 | history | edited | Legisey | CC BY-SA 3.0 |
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| Apr 11, 2018 at 8:16 | history | answered | Legisey | CC BY-SA 3.0 |