Tunnel Portals

Re:Tunnel Portals (steven large)

Sun, 14 Mar 2010 22:41:55 GMT

hi mate again...

there u go.........platt truss bridges tht i scatchbuilt it........cheers........

Re:Tunnel Portals (trammayo)

Fri, 12 Mar 2010 12:18:09 GMT

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

Re:Tunnel Portals (steven large)

Fri, 12 Mar 2010 11:44:45 GMT

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?.......

Re:Tunnel Portals (JRinTawa)

Fri, 12 Mar 2010 02:10:55 GMT

Well you sure seem to know what your doing outside!

Re:Tunnel Portals (trammayo)

Thu, 11 Mar 2010 17:34:09 GMT

Thats all folks (for now). It takes a Luddite like me ages to sort piccys out - I bet I would be three times as quick if I knew what I was doing.

Re:Tunnel Portals (trammayo)

Thu, 11 Mar 2010 17:31:14 GMT

Hi Steve - here's a bit more etc.[attachment=0][attachment=1][attachment=2][attachment=3][attachment=4]

Re:Tunnel Portals (Steve)

Thu, 11 Mar 2010 17:25:48 GMT

WOW WOWWOW

Re:Tunnel Portals (trammayo)

Thu, 11 Mar 2010 17:24:48 GMT

Tunnel approaches etc.[attachment=0][attachment=1][attachment=2][attachment=3]

Re:Tunnel Portals (trammayo)

Thu, 11 Mar 2010 17:21:09 GMT

Finished tunnels[attachment=0][attachment=1][attachment=2][attachment=3][attachment=4]

Re:Tunnel Portals (trammayo)

Thu, 11 Mar 2010 17:17:17 GMT

And some more. First tunnel was shuttered concrete built around wood former and the second was built up and capped with scrap polystyrene packaging before sculpting concrete on top. The mountain is made from old rubble and demolition material capped with concrete and either trowelled up or worked with a stiff paint brush. I painted it green using oil based undercoat.
Mick[attachment=0][attachment=1][attachment=2][attachment=3][attachment=4]

Re:Tunnel Portals (trammayo)

Thu, 11 Mar 2010 17:09:36 GMT

Hi John,
I've been busy resizing pics most show the various phases of construction (or pre) and some show as of today (galloping moss and windburnt conifers!). I'll see what I can post.
Mick[attachment=0][attachment=1][attachment=2][attachment=3]

Re:Tunnel Portals (trammayo)

Thu, 11 Mar 2010 11:49:24 GMT

Hi Steven,
I use Westland Horticultural Grit - I looked at all sorts of gravel but this was the nearest in scale size. It cost about five euro for a 25kg bag so should be a lot cheaper in the UK (where it comes from). One point, because is it quite small (average 4mm size) it washes away in heavy rain unless you can contain it - like an edge to your trackbed.
Mick.

Re:Tunnel Portals (JRinTawa)

Thu, 11 Mar 2010 07:49:59 GMT

Some nice work there! Some more piccies please

Re:Tunnel Portals (steven large)

Wed, 10 Mar 2010 22:17:45 GMT

what a exellent stuffs u have out there!!!!....i loves tht spectrum ton diesel.....i had them years ago..but got sold to a bloke but i do want to get it agian coz im doing another layout this spring......what types of gravel do u use it? pea gravel? or?

aslo trestle bridges as well........aslo bridges....

Re:Tunnel Portals (trammayo)

Wed, 10 Mar 2010 18:42:31 GMT

... and here's some other bridges as mentioned previously...[attachment=0][attachment=1][attachment=2][attachment=3]

Re:Tunnel Portals (trammayo)

Wed, 10 Mar 2010 17:46:08 GMT

Here are some more pics[attachment=0][attachment=1][attachment=2]
Only the viaduct piers are different - everything else used the same bits (only more of them) as the bridge.
Mick[attachment=2]

Re:Tunnel Portals (trammayo)

Wed, 10 Mar 2010 17:43:02 GMT

Hi Steven, wood is a nice material and blends in very well in the garden. I like the ivy - I have encouraged mine to spread (have to trim it back sometimes) - once it gets established its away!

I just built the one bridge and viaduct in concrete - the rest is in wood (trestles and a cantilever bridge) and one simple truss in metal (old bed iron mainly). Here's some pics of the viaduct.[attachment=0][attachment=1][attachment=2][attachment=3][attachment=4]

Re:Tunnel Portals (steven large)

Wed, 10 Mar 2010 14:02:45 GMT

here is my 2nd wooden tunnel portals that i took a pictures of them.......weds 10th march 2010s......see this ivy plant creeping all over the top portal to hide the back......cover up...wink

Re:Tunnel Portals (steven large)

Wed, 10 Mar 2010 13:41:09 GMT

wow tht is so interesting informations about yr way of building it,,,exellent results........loves tht arches .....very clever indeed......hw many bridges and arches did u make it so far?

Re:Tunnel Portals (trammayo)

Wed, 10 Mar 2010 11:02:21 GMT

The bridge/viaduct arches have a thinner parapet wall than the rest of the arch. This is done by laying a piece of suitable sized wood in the mould. Also, to imitate the coping or top stones, a piece of moulding (scotia - concave wood moulding) was fixed in the mould and, after ther mould was filled, anothe piece was screwed down on top - thus giving a chamfered edge to the top of the wall. THe trowel was used to crudely scribe the stonework in the wet concrete.
Re-inforcing is important, a decent strong mix (4 sand and 1 cement) and leave a few days until set.
Here's some more pics.
Mick[attachment=0][attachment=1][attachment=2]