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Cornish bobby
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« Reply #120 on: January 13, 2021, 10:31:19 » |
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Heck of a lot of Steel sleepers in and along the line from Carbis Bay to St Ives.
I don't Understand the Quote from Rail Advent that this is the biggest investment in Track renewals in Cornwall since the 1950s, this relaying will extend the CWR▸ laid from St Erth towards St Ives that was installed about 4 years ago.
Would think the whole branch will be CWR after work is completed, so if 1 1/2 miles is being done then 3 miles has ALREADY been relaid with CWR.
There will still be a section by the golf course to be renewed when the current work is complete. |
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IndustryInsider
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« Reply #121 on: January 13, 2021, 12:32:02 » |
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It woud have been interesting and very good PR▸ if NR» had said what age the track was that they were replacing to inform Joe Public just what a long service life railway track materials can have.
It is quite likely that the chaired concrete sleepers (that hold BH rail) were made between 1948 and 1955 AND it is understood they are to have a second life on the planned extension of the Helston Railway! Compare that with the short life of materials being expensively used by Contractors to temporarily repair the thousands of potholes in Devon's roads.
I read in a staff briefing that some of the track dates back to the 1940s. |
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To view my GWML▸ Electrification cab video 'before and after' video comparison, as well as other videos of the new layout at Reading and 'before and after' comparisons of the Cotswold Line Redoubling scheme, see: http://www.dailymotion.com/user/IndustryInsider/ |
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paul7575
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« Reply #122 on: January 13, 2021, 13:01:15 » |
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Option for a 2 foot gauge line?
Those are ?guard rail? cast in chairs, usually seen on bridges and viaducts where there?s an obvious derailment risk. Is it because of proximity to the sea, or maybe there?s a cliff rock fall derailment risk? Paul Not sure it is for check rails, thing the rails in the 4ft are to help maintain track alinement due to the curve. Check rails are usually in the same chair as the running rails I intentionally didn?t mention check rails though, because they have a separate function to guard rails, the former are positioned to work against the back of the wheel flange, eg within points and crossings. I guess we?ll see what they fit shortly, but presumably they?re being used because there?s no equivalent steel sleeper. |
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Electric train
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« Reply #123 on: January 13, 2021, 16:53:18 » |
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Option for a 2 foot gauge line?
Those are ?guard rail? cast in chairs, usually seen on bridges and viaducts where there?s an obvious derailment risk. Is it because of proximity to the sea, or maybe there?s a cliff rock fall derailment risk? Paul Not sure it is for check rails, thing the rails in the 4ft are to help maintain track alinement due to the curve. Check rails are usually in the same chair as the running rails I intentionally didn?t mention check rails though, because they have a separate function to guard rails, the former are positioned to work against the back of the wheel flange, eg within points and crossings. I guess we?ll see what they fit shortly, but presumably they?re being used because there?s no equivalent steel sleeper. I am guessing the use of concrete sleepers in the location might be due to lateral forces, which the mass of concrete will help mitigate |
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Starship just experienced what we call a rapid unscheduled disassembly, or a RUD, during ascent,”
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TonyK
Global Moderator
Hero Member
Posts: 6594
The artist formerly known as Four Track, Now!
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« Reply #124 on: January 13, 2021, 18:59:26 » |
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According to Network Rail, answering Peter in their Twitter feed:Hi Peter, guard rails will be installed in these loops. Used on tracks where there are bendy sections to catch the train should the unfortunate happen and a train is derailed. They are also used over viaducts where the parapets may not be high enough. more pics in coming weeks Bloomin' internet - ruins debate. |
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Now, please!
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eightonedee
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« Reply #125 on: January 13, 2021, 20:03:18 » |
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Quote
Hi Peter, guard rails will be installed in these loops. Used on tracks where there are bendy sections to catch the train should the unfortunate happen and a train is derailed. They are also used over viaducts where the parapets may not be high enough. more pics in coming weeks
Bloomin' internet - ruins debate.
But it doesn't stop all kinds of ill-informed speculation proliferating! |
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TonyK
Global Moderator
Hero Member
Posts: 6594
The artist formerly known as Four Track, Now!
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« Reply #126 on: January 13, 2021, 20:30:06 » |
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But it doesn't stop all kinds of ill-informed speculation proliferating!
Not on here - speculation is usually very well informed. |
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Now, please!
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Jamsdad
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« Reply #127 on: January 13, 2021, 20:33:37 » |
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I must say I cant understand how this is being promoted as "the biggest investment in track renewals in Cornwall since the 1950's". The mainline has of course had Continuously Welded Rail (CWR▸ ) , and more recently there has been the re-doubliing of the track between St Austell and Truro. Does anyone know the basis of the investment claim?Or is it a misquote just relating to investment in the St Ives branch??
Edit: VickiS - Clarifying acronym
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« Last Edit: March 14, 2021, 19:20:31 by VickiS »
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smokey
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« Reply #129 on: January 17, 2021, 12:26:29 » |
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Re the two photos above. What a Nightmare for the tamper operator.  |
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smokey
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« Reply #130 on: January 17, 2021, 12:32:40 » |
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Coming back to how old the rails were, whilst not the St Ives Branch, back in 2002, must have been no earlier than that as I was with a new workmate who started in 2002, we were at Newquay (Cornwall) station, and looking at the Bullhead rail chairs many were GWR▸ dated 1920's and 30's there were also LSW chairs dated around the same dates, even a couple of LMS▸ chairs but around ten chairs were dated 96 and 98 which I guess meant 1896 and 1898.
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RailCornwall
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« Reply #131 on: January 18, 2021, 16:38:14 » |
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Another from NRW»  |
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RailCornwall
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« Reply #132 on: January 20, 2021, 20:36:53 » |
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Thatcham Crossing
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« Reply #133 on: January 21, 2021, 08:12:37 » |
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On their Twitter feed Network Rail Western have denied that this work is taking place so that "Amtrak Joe" can have a ride on the new rails when he visits in June.
Apparently it's a coincidence of timing!
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TonyK
Global Moderator
Hero Member
Posts: 6594
The artist formerly known as Four Track, Now!
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« Reply #134 on: January 21, 2021, 08:50:18 » |
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On their Twitter feed Network Rail Western have denied that this work is taking place so that "Amtrak Joe" can have a ride on the new rails when he visits in June.
Apparently it's a coincidence of timing!
For once, I believe Twitter. This has been planned for a long time. So has the summit, probably, but behind many layers of closed doors. |
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Now, please!
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