Hi All,
The recent earthquake in the UK caused quite a stir - well for most - I was a little disappointed 'cos I slept through it and never felt a thing, only to wake up just at the end, to the noise of the wardrobe doors rattling! And I'm only 16 miles away from the epi-centre!! Not that I want to be in an earthquake, but as I was there and there wasn't much damage, I would have liked to have at least felt the experience.
Apparently, it did rattle the house, but the gas lamps that I have made for the garden railway station platforms were stood up, loosely, on a shelf in the office and never moved!!
So, no damage - or so I thought! Then, when I was doing the final fittings for a new bridge near my rockery the following weekend, I found where the earthquake had hit. The viaducts at the rockery - here's the photo. The cracks definitely weren't there the week before. Still, it was the only pier to get the damage, so that was a relief - just a little "pointing up" should fix it.
Regards,
GeoffB
Viaduct Earthquake Damage
Moderators: 52D, Tom F, Rlangham, Atlantic 3279, Blink Bonny, Saint Johnstoun, richard
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GeoffB
- NER J27 0-6-0
- Posts: 134
- Joined: Tue Oct 18, 2005 10:15 pm
- Location: Cleethorpes, Lincolnshire, UK
Viaduct Earthquake Damage
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- Viaduct_Earthquake_Damage_DSF3342.jpg
- The cracks down the pier inner wall and around the base from the earthquake.
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richard
- LNER A4 4-6-2 'Streak'
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How does earthquake energy scale with models?
If linear (which I doubt), then 10x would push the "model earthquake magnitude" up by 1. So 7mm/foot would push it up by about 1.6.
An earthquake of "5. something" becomes close to a 7. Cracks would be reasonable for a non-earthquake proofed viaduct!
I've a feeling it is a square law rather than linear - it is probably possible to derive through wave theory. That would bump the magnitude up by about 0.8 - still in the 6+ range...
Richard (dubious model extrapolations R' us)
If linear (which I doubt), then 10x would push the "model earthquake magnitude" up by 1. So 7mm/foot would push it up by about 1.6.
An earthquake of "5. something" becomes close to a 7. Cracks would be reasonable for a non-earthquake proofed viaduct!
I've a feeling it is a square law rather than linear - it is probably possible to derive through wave theory. That would bump the magnitude up by about 0.8 - still in the 6+ range...
Richard (dubious model extrapolations R' us)
Richard Marsden
LNER Encyclopedia
LNER Encyclopedia
Earthquake
Hi Geoff
In New Zealand the earth moves for us over a 500 times a year, most are too small to be felt but we get some good ones, the last one that was felt on my model was 6.2 but as it was very deep it was felt as just a slight roll.
We have had them that shook the stock of the track.
You get used to them and when overseas you miss them.
TonyM
In New Zealand the earth moves for us over a 500 times a year, most are too small to be felt but we get some good ones, the last one that was felt on my model was 6.2 but as it was very deep it was felt as just a slight roll.
We have had them that shook the stock of the track.
You get used to them and when overseas you miss them.
TonyM
Real Trains Run on Steam and have LNER on the tender.
