Tunnel Portals
- Thread starter trammayo
- Start date
WOW
steven large
USA G SCALES OF 30 TO 50S THEMES.ASLO KIT BASHING
hi agian....yr photos of them all make my mouth drop!! what a beautiful jobs u been doing it......aslo doing hard work yr self......ah u mean grits?mmmmm....yes it can happened if heavy rain will wipe this grits away.....
but i loves the track bed blend is so neat and tidy......well done...have u got engine shed?.......
but i loves the track bed blend is so neat and tidy......well done...have u got engine shed?.......
trammayo
Interested in vintage commercial vehicle, trams, t
Hi Steven - no haven't got anf buildings apart from the little water mill and the "freight depot" (which houses the control panel - roof lifts off and back slides out). Been picking other people's brains about best materials - lightweight concrete blocks and the like. Done liitle or nothing since 2008 because been a bit under the weather but getting there now! A bit of sunshine does the world of good.
Mick
Mick
steven large
USA G SCALES OF 30 TO 50S THEMES.ASLO KIT BASHING
hi mate again...
there u go.........platt truss bridges tht i scatchbuilt it........cheers........
there u go.........platt truss bridges tht i scatchbuilt it........cheers........
John Carmichael
Registered
Tunnel, Portal, Wings- & Cribbing Design & Construction
Every Garden Railroad Needs a Tunnel! Ours is based on classic American wood timber tunnels. It’s a fancy design with portals, wing abutments, and log cribbing for the roadbed. Real log timber frames line the inside, attached to a durable hollow rectangular tube made of strong rot-proof composite decking material. Buried sturdy foundations supported the entire assembled structure above ground before we added the mountain. It even has interior incandescent lights in the ceiling.
Roadbed cribbing just outside of the tunnel has wood logs stacked like a log cabin. The cribbing was filled with rocks bigger than the ¾” gaps between the logs. The ballasted roadbed sits on top of the rocks. There are five Sub-Assemblies that make up the Full Tunnel Assembly: The Tunnel, The Portal, The two Wing abutments, and the Cribbing. All of these have their own buried foundations except the portals which do not need it because they’re screwed firmly into the end of tunnel. They are joined on-site in the railroad before we added the mountain.
Everything is made from redwood and composite wood for decking. Wood rots or gets eaten by termites when touching soil. I designed this so real wood does not touch any soil. All soil contact is with the rot-proof composite wood or silicone asphalt sealer. The tunnel is 14 years old and still looks perfect- even better than new I think!
Feel free to copy, use or modify any of the images and video shorts you see here. I hope this video shines a light at the end of your tunnel project. Good luck with yours! Thanks for watching, John Carmichael
See other projects at Cholla Patch Garden Railroad Design & Construction Series:
Cholla Patch Garden Railroad Design & Construction Series
Every Garden Railroad Needs a Tunnel! Ours is based on classic American wood timber tunnels. It’s a fancy design with portals, wing abutments, and log cribbing for the roadbed. Real log timber frames line the inside, attached to a durable hollow rectangular tube made of strong rot-proof composite decking material. Buried sturdy foundations supported the entire assembled structure above ground before we added the mountain. It even has interior incandescent lights in the ceiling.
Roadbed cribbing just outside of the tunnel has wood logs stacked like a log cabin. The cribbing was filled with rocks bigger than the ¾” gaps between the logs. The ballasted roadbed sits on top of the rocks. There are five Sub-Assemblies that make up the Full Tunnel Assembly: The Tunnel, The Portal, The two Wing abutments, and the Cribbing. All of these have their own buried foundations except the portals which do not need it because they’re screwed firmly into the end of tunnel. They are joined on-site in the railroad before we added the mountain.
Everything is made from redwood and composite wood for decking. Wood rots or gets eaten by termites when touching soil. I designed this so real wood does not touch any soil. All soil contact is with the rot-proof composite wood or silicone asphalt sealer. The tunnel is 14 years old and still looks perfect- even better than new I think!
Feel free to copy, use or modify any of the images and video shorts you see here. I hope this video shines a light at the end of your tunnel project. Good luck with yours! Thanks for watching, John Carmichael
See other projects at Cholla Patch Garden Railroad Design & Construction Series:
Cholla Patch Garden Railroad Design & Construction Series
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