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Jonty
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« Reply #2175 on: September 18, 2013, 06:28:50 » |
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I saw that too yesterday - wondered whether it was some sort of temporary drainage...
Are there no specialised 'concrete mixers on railway wheels'...?
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stuving
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« Reply #2176 on: September 18, 2013, 08:01:06 » |
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The picture also shows a short stretch of retaining wall, which is what presumably the rest will look like when finished.
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paul7575
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« Reply #2177 on: September 18, 2013, 08:22:50 » |
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The picture also shows a short stretch of retaining wall, which is what presumably the rest will look like when finished.
Possibly, but that section is part of a specific solution to a problem. It's where they rebuilt a section of subway roof where there was very little headroom, there is a short section of slab track between it and the platform. It was done during a Christmas closure a while back, and IIRC▸ the 'wall' there was cast as part of the whole slab section. Paul |
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lbraine
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« Reply #2178 on: September 18, 2013, 08:25:24 » |
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Some while back, with the installation of the reversing signal on the down P3 at Tilehurst, I posted a picture of the signage at the opposite (country) end if the platform.
Guess what - there is now more !!
Little purple stop signs complementing the white and black triangles.
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stuving
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« Reply #2179 on: September 18, 2013, 09:16:17 » |
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The picture also shows a short stretch of retaining wall, which is what presumably the rest will look like when finished.
Possibly, but that section is part of a specific solution to a problem. It's where they rebuilt a section of subway roof where there was very little headroom, there is a short section of slab track between it and the platform. It was done during a Christmas closure a while back, and IIRC▸ the 'wall' there was cast as part of the whole slab section. Paul That's what I though it was when it appeared. Of course if a wall is needed, it would have to be built into the bridge not done by piling. There's an extra layer of complexity too - looking at the sections, the height offset (and need for the wall) varies along the line. It's shown as almost zero at cut 8.1 - along the western side of the deck - but the wall is present on both sides of that, including at cut 10.1 - through the eastward lift. The subway runs further East, at cut 11.1 (not in the set I'm looking at, though I have a hazy recollection of having seen it somewhere). So there may not be a wall all the way along, but I'd guess there is one at this point. |
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paul7575
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« Reply #2180 on: September 18, 2013, 12:58:38 » |
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...The hotch-potch of surfaces on Platforms 8&9 is a right mess.Does anyone know whether they are planning to create a uniform surface using the normal brick herringbone pattern?
There is day by day progress with the copings along P8 - they seem to do sections of about 30 foot or so whenever the platform is closed to through traffic, as it was last Sunday afternoon. The picture below shows that they have reached about as far as level with the end of the 'heritage' station building, ie about where the east side of the old footbridge was. I suspect the next part of the plan will be to limit P8 to shorter trains at the west end, such as XC▸ and non HST▸ services (the latter will be able to use temporary P7 or P9), but this will only be for a short period while they reach the mid point of resurfacing, then they'll switch trains to the other end. Meanwhile I noticed yesterday that there is a walking route being set up to get to P1 and P2 that is on the south side of the present hoarding line - tracing the yellow line then once past the P7 lifts the route will be next to the new waiting room, and then head straight across towards P2 - allowing P3 and the far end of P7 to be completely isolated from passenger flows... Paul |
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Electric train
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« Reply #2181 on: September 18, 2013, 16:59:06 » |
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I saw that too yesterday - wondered whether it was some sort of temporary drainage...
Are there no specialised 'concrete mixers on railway wheels'...?
With concrete mixers you need a batching plant, apparently according to the civil engs it not as simple as 3 shovels of sand 1 of cement and add water to taste, it is easier to source the readymix locally. The railways did have mixers on wagons for electrification mast foundations years ago. |
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Starship just experienced what we call a rapid unscheduled disassembly, or a RUD, during ascent,”
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IndustryInsider
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« Reply #2182 on: September 18, 2013, 22:34:08 » |
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I suspect the next part of the plan will be to limit P8 to shorter trains at the west end, such as XC▸ and non HST▸ services (the latter will be able to use temporary P7 or P9), but this will only be for a short period while they reach the mid point of resurfacing, then they'll switch trains to the other end.
Spot on!  |
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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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Jason
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« Reply #2183 on: September 19, 2013, 10:35:47 » |
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Meanwhile I noticed yesterday that there is a walking route being set up to get to P1 and P2 that is on the south side of the present hoarding line - tracing the yellow line then once past the P7 lifts the route will be next to the new waiting room, and then head straight across towards P2 - allowing P3 and the far end of P7 to be completely isolated from passenger flows...
That could be interesting at peak times. Would that be using the currently closed off door(s) in the waiting room and then opening up what is currently a builders yard at the end of P1/P2 ? I noticed the first concrete pour at the western end of P10 had taken place by yesterday evening. |
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JayMac
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« Reply #2184 on: September 19, 2013, 16:06:11 » |
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 One of three examples on the transfer deck this evening. Again, with the caveat that this is a work in progress... but for a new structure to be leaking like this.... Apologies for quoting myself. I've just learnt of requests from both the BBC» and ITV for permission to use my pictures of the leaky transfer deck roof.... |
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"A clear conscience laughs at a false accusation."
"Treat everyone the same until you find out they're an idiot."
"Moral indignation is a technique used to endow the idiot with dignity."
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paul7575
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« Reply #2185 on: September 19, 2013, 16:56:35 » |
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That could be interesting at peak times. Would that be using the currently closed off door(s) in the waiting room and then opening up what is currently a builders yard at the end of P1/P2 ?
No, straight along in a westerly direction but behind the present hoarding line, not through the building. So if you came out the waiting room towards P7, turn left left immediately and go straight ahead... A picture is worth a thousand words, though it's only an educated guess. PS ... a week on and the public route is now skirting the building, so I've re-annotated the drawing Paul |
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« Last Edit: September 22, 2013, 12:06:11 by paul7755 »
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JayMac
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« Reply #2186 on: September 19, 2013, 17:41:44 » |
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ITV Meridian have posted a video news item about the leaky transfer deck and they did include my pictures with the reporter commenting on them. Although I'd slightly disagree that I'd 'taken to social media to complain'. My post here including the pictures was only meant as an observation and mild critique. I did point out that Reading Station is still very much a work in progress. http://www.itv.com/news/meridian/story/2013-09-19/850m-station-roof-is-leaking/ |
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"A clear conscience laughs at a false accusation."
"Treat everyone the same until you find out they're an idiot."
"Moral indignation is a technique used to endow the idiot with dignity."
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paul7575
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« Reply #2187 on: September 19, 2013, 17:51:24 » |
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I see they use the cost of the entire remodelling project to add fuel to the flames, which I suppose is exactly what you'd expect nowadays...
Paul
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JayMac
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« Reply #2188 on: September 19, 2013, 18:02:17 » |
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To be fair to ITV, FGW▸ Spokesman Dan Panes said that this was a ^1 billion project in his response. He could have clarified the cost of station work against the total cost of remodelling.
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"A clear conscience laughs at a false accusation."
"Treat everyone the same until you find out they're an idiot."
"Moral indignation is a technique used to endow the idiot with dignity."
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stuving
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« Reply #2189 on: September 19, 2013, 18:24:57 » |
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With concrete mixers you need a batching plant, apparently according to the civil engs it not as simple as 3 shovels of sand 1 of cement and add water to taste, it is easier to source the readymix locally.
Where is the other end of this pipe, anyway? I can't see anywhere near the ends of the service corridor to couple a readymix tanker even if they do have enormous folded delivery pipes. And it must be a very long built-in pipe. On Saturday there was a small concrete factory on P7, among the debris of the escalators, with a suspiciously big hose along the platform. I assumed that was just to fill the canopy support foundations that had just been bored. They were really quite small holes, as groundworks go, but it still took a big stack of cement bags - so I can well believe that's not viable for P10, as S&T▸ says. That prompts a thought: how do they clean the concrete out of one of these pipes, if you can't take it home on the vehicle? I've always imagined you stuff something up it - a spherical "pig", or maybe an old jumper - and use compressed air. Using water would give you an unmanageable quantity of very runny grout to dispose of. And letting it set ... would give you a big headache. |
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