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Raised Track

HauteSaoneFrance

Joined: 2-01-14

Topics: 27

Replies: 91

Posted: Mon 4th Jan 2016, 3:39pm
Raised Track

My proposed garden railway has some quite challenging variations in ground level with some sections including those where there will be 30ft radius curves and a need for the track to be raised up to just over 1 metre. On another part of my site I'm proposing to use Gabions as a retaining wall and it occurred to me that use of Gabion baskets could well be used to form a raised track base, they are easy to install, available in many different sizes, easy to arrange into a curved shape and unlike creating an earth bank at the bottom of sloping site will not impede drainage. Has anyone used this method?
 

Replies To This Post

jeggray

Joined: 11-11-15

Topics: 2

Replies: 8

Posted: Sat 30th Jan 2016, 9:56pm

I am considering using gabions myself, but have not yet investigated. Those that I have seen on river banks and road and railway cuttings seem to be filled with largish stone and all I have on site I will need for wall building or facing unattractive block work. Had you considered what you would fill your gabions with? What ever it is will be heavy and not easy to transport to site and then to specific locations.
JEG
 

PeteW

Joined: 1-10-13

Topics: 0

Replies: 21

Posted: Sun 31st Jan 2016, 10:26am

When I saw the title I thought it was about raised track in the sense of 5" and 3.5" gauge.

We used gabion baskets for many years to reduce erosion on watercourses. I think they would provide a suitable base, but could settle a few centimetres over time. We used a heavy gauge of galvanised steel so the baskets were stiff. I have seen some that collapsed as there was no stiffness in the basket itself. Presumably a cheaper but ineffective alternative.

The stone was generally limestone and about 7 - 10 centimetres in size.
 

HauteSaoneFrance

Joined: 2-01-14

Topics: 27

Replies: 91

Posted: Sun 31st Jan 2016, 1:39pm

My first thought was to use gabions to reinforce a bank I have to create, I've got lots of lime stone on site in fact almost everywhere I dig turns up sizeable rocks large enough for the baskets, the thought occurred to me about using them to create a bank for the track to run on about 1 metre above existing site level and where drainage might be a problem, I take the view though that subsidence could be a problem over time
 

HauteSaoneFrance

Joined: 2-01-14

Topics: 27

Replies: 91

Posted: Fri 26th Feb 2016, 8:08pm

I think I might have gone off the idea of gabions other than for creating a bank. I'm thinking of making precast curved concrete sections as opposed to curved steel one's curving of the latter by a specialised company like 'ANGLE RING' doubles the price of the steel used. So the current plan is to make up multiple reusable moulds to form a curved (to 30ft radius) 4 metre X 1 metre X 0.2 metre steel reinforced concrete roadway, about 8 sections can be made with one ready mixed full load, each section will weigh about 1.5 tons which I can handle easily on site and which can be supported on cast concrete piers or simple block work, has anyone experience of this type of on site casting?
 
 
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