The pics are of the vehicle that remained upright...
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Lewes derailment - Thursday 13th August
- Thread starter NaZzAtAzEr
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gabrielhj07
Established Member
Cheers I'll update it.
Nicholas Lewis
Established Member
Another video off instagram posted by Daily Mirror cant find it on their news website but its show the pantograph coach being moved
The coach has a broken window so not if that was the side on the ground as the rest of the vehicle looks remarkable intact.The mirrors caption isnt even correct they arent
interested!!
Edit: looking at Sky News copter footage it looks like coach 7 so that would be the side on the embankment if im correct but cant be sure has coaches 6 & 7 are obscured by trees.
The coach has a broken window so not if that was the side on the ground as the rest of the vehicle looks remarkable intact.The mirrors caption isnt even correct they arent
interested!!
Edit: looking at Sky News copter footage it looks like coach 7 so that would be the side on the embankment if im correct but cant be sure has coaches 6 & 7 are obscured by trees.
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Intercity_225
Member
They couldn't care less!
Irony surely?
BRX
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Photo of the situation as of a couple of hours ago. All carriages gone now. Can see how much they've built up the embankment on the west side.
Snow1964
Established Member
If the train recovery is now done, another 9 days to relay the track for 1st September reopening seems a bit generous to me. But perhaps something complicated and time consuming hasn't been revealed
There has been mention of dealing with the earthworks
I know RAIB take great care in their statements.
My posting about heat haze was in reference to a question about the UP line, not the down line that the accident train was travelling on.
If RAIB have said there was also distortion on the UP line, I must have missed it.
Rick1984
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It's lucky it derailed where it did as it looks like potentially not could have ended up in the Ouse
Nicholas Lewis
Established Member
Indeed the earthworks has come on a pace despite having the train recovery restricting the site for the last few days so im with you that another 9 days seems unnecessary. Maybe they've held back the track renewal resources for planned work this weekend and they wont be available till next week. Perhaps they will surprise us.
And if it’s more than just track & ballast?
edwin_m
Veteran Member
Recent examples show that stabilising an embankment can take a lot more than a few days.
Nicholas Lewis
Established Member
Its going to include a cable route both sides for sure.We already know they've put the S&T cables in a temporary route so they will need reinstating. Then there will the 33kV traction power distribution cables. Thats another 2-3 days work but can be done partly in parallel with track relaying.
Whats not yet clear is what work is going to be undertaken on the down side embankment where the train derailed. In facts its not clear why they've widen the embankment on the upside maybe they already had a plan to remediate the whole embankment in this area and they've accelerated the works given the incident.
Hopefully we will continue to get some images to see things unfold.
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BRX
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That's what I'd assumed.
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What I also noticed this morning is that the "up" line still seemed to be in place and continuous.
Annetts key
Established Member
Yes, we have little to no information on what signalling cables and equipment has been damaged, destroyed or disturbed. Plus there is the third rail and maybe electrification equipment that requires work. And maybe other services, cables or equipment, such as telecommunications (maybe including fibre optic cable).
With some of the work on the signalling cables and equipment, in practice, only some work can be carried out with the track damaged or occupied by a train (or other on track equipment). So this work may have to wait until all the track repair and replacement work is completed.
Plus, if there are unknowns, it's best to be conservative in your estimated reopening date. You can always reopen earlier than advertised. Which is much better than giving a date and then over running...
Deepgreen
Established Member
Apologies if it has been mentioned already, but the CCTV from the rear of a previous train shows a bag, or bags, of what is presumably ballast standing by the line at the point of the kink. Does this indicate preparation for a job to be done (i.e. with knowledge of the defect) but yet to be undertaken? If so, why was a speed restriction not imposed until the work was done?
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Hot sunshine heats up rails of any length, but with continuous welded rail (CWR) the long lengths have fewer places between their lengths to expand and therefore the expansion pressure builds up to a point where the rail deforms to release the pressure. Long stretches of CWR usually have expansion joints built into them. Rails are usually stressed to a temperature of 27C when laid to try to accommodate the heating, but this also leads to reverse stresses from contraction in very low temperatures, sometimes leading to broken or cracked rails.
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They don’t as they are not needed.
The stressing of the rails accommodates the expansion forces up to 27C, and the track system itself accommodates the forces above that temperature (up to a limit, which varies due to a variety of factors, see my post on the CWR thread).
‘Expansion joints’ in CWR are called Breather Switches, and they are not for expansion of the CWR. They are used where CWR is joined to non-CWR, including ‘unstrengthened’ Switches and Crossings. The expansion space is for the non-CWR elements to expand into.
edwin_m
Veteran Member
There's a lengthy discussion of CWR here: https://www.railforums.co.uk/threads/pros-and-cons-of-continuous-welded-rail-cwr.305887/
Deepgreen
Established Member
Thanks - I happily sit corrected! One thing I'm also unclear about - is the 27C the air temperature or rail temperature?
Elecman
Established Member
Air Temperature
The ballast bags have been there for quite some time. For as long as I can remember. Also they are on Google aerial imaging.
Annetts key
Established Member
Yes.
For those that don't know, the railway has thermometers that attach to the rail. Every time a weld is prepared, the rail temperature is checked.
The same thermometers are used during hot weather when the P.Way are tasked with hot weather monitoring.
Strictly speaking it’s every time a rail is installed or stressed.
Nicholas Lewis
Established Member
Some pictures from NR Sussex showing they've switched sides and are rebuilding the embankment on the Down side.
Pretty extensive works and might as well get it all sorted now given whats happened. Going to be interesting to see what RAIB have to say the cause here.
Pretty extensive works and might as well get it all sorted now given whats happened. Going to be interesting to see what RAIB have to say the cause here.
BRX
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Looks like only partially rebuilding the side to me - the core of the embankment remains as-is.
king_walnut
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Found these on TikTok
Re the choice of song in the first video - I imagine the recovery is not proving to be "dirt cheap"!