RMweb Gold The Stationmaster Posted January 8, 2017 RMweb Gold Share Posted January 8, 2017 Is it me or are they having a few problems making it all fit together? Link to post Share on other sites More sharing options...
ffinybryn Posted January 9, 2017 Share Posted January 9, 2017 (edited) The bridge is FRP (reinforced plastic) but is made to give the impression of steel. Steel & concrete were rejected on longetivity grounds. Strange to tap the "beams" and feel plasticThe final stair was released around 9pm and the site is closed until midday to give everyone a shift break.Great photos David, I'll post something later. Updated: First flight Second flight Completed bridge Beach works Timelapse to follow... Edited January 9, 2017 by ffinybryn 4 Link to post Share on other sites More sharing options...
David Todd Posted January 9, 2017 Share Posted January 9, 2017 The bridge is FRP (reinforced plastic) but is made to give the impression of steel. Steel & concrete were rejected on longetivity grounds. Strange to tap the "beams" and feel plastic The final stair was released around 9pm and the site is closed until midday to give everyone a shift break. Great photos David, I'll post something later. Updated: First flight Second flight Completed bridge Beach works Timelapse to follow... Thanks for the update, very much like the last shot, from your drone. So how you getting on with your 3D printer ? 11 Link to post Share on other sites More sharing options...
ffinybryn Posted January 9, 2017 Share Posted January 9, 2017 Thanks David - and I get paid for it! I've printed the second span now, but it still needs some work... https://www.flickr.com/photos/58506251@N06/shares/G3FV88 3 Link to post Share on other sites More sharing options...
autocoach Posted January 9, 2017 Share Posted January 9, 2017 Wonderful pictures. The drone shot looks almost like an architects rendering. Now there is a prototype for plastic bridges? 3 Link to post Share on other sites More sharing options...
David Todd Posted January 9, 2017 Share Posted January 9, 2017 Thanks David - and I get paid for it! I've printed the second span now, but it still needs some work... https://www.flickr.com/photos/58506251@N06/shares/G3FV88 Ah, like this 9 Link to post Share on other sites More sharing options...
David Todd Posted January 9, 2017 Share Posted January 9, 2017 Pre wash,out. 8 Link to post Share on other sites More sharing options...
runs as required Posted January 10, 2017 Share Posted January 10, 2017 The bridge is FRP (reinforced plastic) but is made to give the impression of steel. Steel & concrete were rejected on longetivity grounds. Strange to tap the "beams" and feel plastic Fascinating how 'what goes around comes around' on the railways. I joined a plastic buildings R&D Group in BR(E) CCE's in 1961 on coming straight out of university. We managed to produce just one building - a GRP relay room erected at Pitsea on the LT&S (fabricated at Park Royal by Mickleover Transport - makers of London's electric milk floats of that era ). No more BR structures were made from the moulds. In retrospect our thinking about plastic lineside buildings being light and 'instantly' placed in the course of a weekend's possession was fundamentally flawed - polyester resin is a petrochemicals industry product - by comparison timber is a renewable resource, light as well as durable. However BR and Mickleover eventually got therir money back from the British Antarctic Survey choosing our moulds to produce a much larger modular structure for a Base that may still be there buried under deep snow rifts. It would be interesting to know what the F in FRP stands for, but with GRP (laminated fibreglass) the problem was always UV attack on the gel coat, causing the surface to craze and breakdown. Thus the structure would later need to be painted at intervals to prevent laminating glass fibres from causing a nuisance. Buried under metres of snow near the South Pole, UV breakdown was never a problem. Hopefully the chemistry of thermosetting plastics has moved on in 50 years. dh 1 Link to post Share on other sites More sharing options...
ffinybryn Posted January 10, 2017 Share Posted January 10, 2017 (edited) The bridge has been said to have been "FRP" and "GRP". Consensus is that it is Glass Fibre Reinforced Plastic, so technically GFRP would be correct. The bridge was built in Plymouth by Pipex (not the ISP provider!). http://www.pipexpx.com As promised, here is the World premiere of the second timelapse video (with bonus bits) taken on Sunday. Apologies, but due to the nature of the amount of lifting that actually took place, the time spent watching this video is not refundable. : ) https://youtu.be/2SW_MAP-fVE and some final shots of the bridge: Bridge builders PipexPx have recently been taken over by American company NOV, hence the Americanised "Fiber Glass" Edited January 10, 2017 by ffinybryn 9 Link to post Share on other sites More sharing options...
David Todd Posted January 10, 2017 Share Posted January 10, 2017 The bridge has been said to have been "FRP" and "GRP". Consensus is that it is Glass Fibre Reinforced Plastic, so technically GFRP would be correct. The bridge was built in Plymouth by Pipex (not the ISP provider!). http://www.pipexpx.com As promised, here is the World premiere of the second timelapse video (with bonus bits) taken on Sunday. Apologies, but due to the nature of the amount of lifting that actually took place, the time spent watching this video is not refundable. : ) https://youtu.be/2SW_MAP-fVE and some final shots of the bridge: Bridge builders PipexPx have recently been taken over by American company NOV, hence the Americanised "Fiber Glass" There you go, the video. http://youtu.be/2SW_MAP-fVE 10 Link to post Share on other sites More sharing options...
bobster Posted January 11, 2017 Share Posted January 11, 2017 First class up to date coverage as always - Many thanks guys. Cheers, Bob. Link to post Share on other sites More sharing options...
David Todd Posted January 11, 2017 Share Posted January 11, 2017 This photo, depicts the area on the West entrance/exit of Shakespeare Tunnel. Channel tunnel spoil extraction creating the area now known as Samphire Hoe. 12 Link to post Share on other sites More sharing options...
Fat Controller Posted January 11, 2017 Share Posted January 11, 2017 (edited) This photo, depicts the area on the West entrance/exit of Shakespeare Tunnel. Channel tunnel spoil extraction creating the area now known as Samphire Hoe. image.jpeg The contrast to today's tranquility is amazing. The area nearest the railway pre-existed the 20th century tunnel building, and originally housed a colliery and some cottages, only accessible by train, or descending a very precipitous stairway from the cliff top. When the 1970s tunnel build started, one of the first jobs was to excavate the road tunnel between the re-routed A20 and the work site. This is visible to the top left of the photo. When the second 20th century attempt at building the tunnel started, it was decided that the existing work platform was insufficent. A jack-barge was moored offshore (its legs are visible top centre-left, with a red crane jib between them), and built an enclosed lagoon using Larssen piles. Initially, mine-stone from some of the local pits was brought in to lay the foundations of the railway sidings and buildings, then spoil from the excavations was brought up via the conveyor seen to the right of the top pair of gantry cranes. This loaded dump-trucks, which ran a shuttle service to build up the western edge of the site- the portion visible is about half the site. The railway lines in the foreground, served by the front row of gantries, were standard-gauge, used to bring in the majority of the material used in the tunnel construction. The railway tracks visible to the right of this are narrow gauge; these descended via a rack-and-pinion incline (now a ventilation adit) to the tunnel worksites. The large stacks of concrete are concrete lining segments; most were manufactured at a site on the Isle of Grain, and brought in by rail, though some concrete ones were cast on site. Specialised cast-iron segments were brought in by rail from the Black Country. Other material brought in by rail included mine-stone, Larssen piles, aggregate and cement. Apart from the reclaimed ground, and the access tunnel through the cliff, I don't think any of the structures now remain. Part of the site now houses ventilation and cooling plant for the tunnel, but most is a nature reserve called Samphire Hoe, the name being a reference to a scene in King Lear. Edited January 11, 2017 by Fat Controller Link to post Share on other sites More sharing options...
David Todd Posted January 11, 2017 Share Posted January 11, 2017 Tuesday, Volunteer day. DSC_0377 by David Todd 2012, on Flickr DSC_0390 by David Todd 2012, on Flickr DSC_0389 by David Todd 2012, on Flickr DSC_0407 by David Todd 2012, on Flickr DSC_0413 by David Todd 2012, on Flickr P1610789 by David Todd 2012, on Flickr 9 Link to post Share on other sites More sharing options...
David Todd Posted January 13, 2017 Share Posted January 13, 2017 1941.painting. Titled, Guarding a Tunnel. Artist. Eric Ravilious Today,down in the office of Samphire Hoe,with a blizzard outside,but not lying,as we are next the sea. Shakey cliff came up in the conversation. Steve said have you seen the picture of Shakey by Eric Ravilious, Manchester Art Gallery, has it in a collection and did not know where the tunnel was. Steve informed them. They we're happy. 5 Link to post Share on other sites More sharing options...
eastwestdivide Posted January 13, 2017 Share Posted January 13, 2017 Manchester Art Gallery link: http://manchesterartgallery.org/collections/search/collection/?id=1947.350 - doesn't tell you much more though. Link to post Share on other sites More sharing options...
David Todd Posted January 13, 2017 Share Posted January 13, 2017 Today, at the office, Walked the last bit. DSC_0456 by David Todd 2012, on Flickr DSC_0457 by David Todd 2012, on Flickr DSC_0464 by David Todd 2012, on Flickr DSC_0466 by David Todd 2012, on Flickr DSC_0467 by David Todd 2012, on Flickr DSC_0470 by David Todd 2012, on Flickr DSC_0474 by David Todd 2012, on Flickr DSC_0483 by David Todd 2012, on Flickr DSC_0486 by David Todd 2012, on Flickr DSC_0488 by David Todd 2012, on Flickr DSC_0491 by David Todd 2012, on Flickr DSC_0477 by David Todd 2012, on Flickr 15 Link to post Share on other sites More sharing options...
RMweb Premium Siberian Snooper Posted January 14, 2017 RMweb Premium Share Posted January 14, 2017 Rather you, than me. Link to post Share on other sites More sharing options...
David Todd Posted January 14, 2017 Share Posted January 14, 2017 Here's one for you all, photo by Greame Walker. You can ponder it,while I get the 1245 bus out to Shakey Cliff, for your beach photos. 9 Link to post Share on other sites More sharing options...
David Todd Posted January 14, 2017 Share Posted January 14, 2017 45 minutes ago, P1610851 by David Todd 2012, on Flickr P1610852 by David Todd 2012, on Flickr P1610853 by David Todd 2012, on Flickr 9 Link to post Share on other sites More sharing options...
David Todd Posted January 14, 2017 Share Posted January 14, 2017 P1610862 by David Todd 2012, on Flickr P1610861 by David Todd 2012, on Flickr P1610863 by David Todd 2012, on Flickr P1610865 by David Todd 2012, on Flickr 10 Link to post Share on other sites More sharing options...
David Todd Posted January 14, 2017 Share Posted January 14, 2017 DSC_0503 by David Todd 2012, on Flickr DSC_0502 by David Todd 2012, on Flickr DSC_0500 by David Todd 2012, on Flickr DSC_0498 by David Todd 2012, on Flickr DSC_0516 by David Todd 2012, on Flickr P1610843 by David Todd 2012, on Flickr P1610857 by David Todd 2012, on Flickr 10 Link to post Share on other sites More sharing options...
RMweb Premium Siberian Snooper Posted January 14, 2017 RMweb Premium Share Posted January 14, 2017 That submarine must have a very tall periscope. Link to post Share on other sites More sharing options...
RMweb Gold The Stationmaster Posted January 14, 2017 RMweb Gold Share Posted January 14, 2017 I see the march of the gabions continues. I wonder what they meant to do - break waves before they hit the concrete wall perhaps or to stop the big rocks being thrown against the wall in storms? Link to post Share on other sites More sharing options...
Fat Controller Posted January 14, 2017 Share Posted January 14, 2017 I see the march of the gabions continues. I wonder what they meant to do - break waves before they hit the concrete wall perhaps or to stop the big rocks being thrown against the wall in storms? I suspect it's something to do with breaking the waves and dissipating their energy, though quite how this works I couldn't say. The myriad interstices between the individual stones within each gabion would also ensure that water flows away after impact. Link to post Share on other sites More sharing options...
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