What did I see? big yellow train
Discussion
Slab track is great where there are minimal variables in rolling stock, environment and physics of the vehicle using it.
Also tamping is a great short-term fix but causes drainage issues long term, ideally you stone blow poor sections of track quality.
Also, its nice to see some other industry folks on here!
Also tamping is a great short-term fix but causes drainage issues long term, ideally you stone blow poor sections of track quality.
Also, its nice to see some other industry folks on here!
Many aspects of civil engineering are fascinating.
'Bout time this Nation refocused on how important a part Industry and Engineering play in the balanced well being of a Nation. Having had much of its Industrial Spine systematically removed in recent decades, there are signs that the focus has changed and not before time either.
Shuffling paper and pressing keyboard buttons in the city will never be enough.
'Bout time this Nation refocused on how important a part Industry and Engineering play in the balanced well being of a Nation. Having had much of its Industrial Spine systematically removed in recent decades, there are signs that the focus has changed and not before time either.
Shuffling paper and pressing keyboard buttons in the city will never be enough.
Tampers also degrade the ballast generally, and cause alignment issues. Though they're generally corrected mid tamp and Dynamic Track Stabilisation helps, where in use.
My last job was buying two new tampers for LU, the first such purchase in 35 years.
One of the big reasons, apart from enhanced plain line output, was a move to concrete bearer P+C layouts. Those things are bloody heavy.
My last job was buying two new tampers for LU, the first such purchase in 35 years.
One of the big reasons, apart from enhanced plain line output, was a move to concrete bearer P+C layouts. Those things are bloody heavy.
iphonedyou said:
Tampers also degrade the ballast generally, and cause alignment issues. Though they're generally corrected mid tamp and Dynamic Track Stabilisation helps, where in use.
My last job was buying two new tampers for LU, the first such purchase in 35 years.
One of the big reasons, apart from enhanced plain line output, was a move to concrete bearer P+C layouts. Those things are bloody heavy.
You shouldn't be getting alignment issues??? Are you doing tamping designs or just smooth tamping?My last job was buying two new tampers for LU, the first such purchase in 35 years.
One of the big reasons, apart from enhanced plain line output, was a move to concrete bearer P+C layouts. Those things are bloody heavy.
I missed out on the shifts but the WCML will Squadron tamp with 2x Parent and Child tamper setups to tamp all 4 roads through S&C, to lift the massive concrete bearers.
Yeah something like 4kg of fines, per bed, per tamp, wheras stoneblowing is far less damaging and tends to hold longer.
JB! said:
iphonedyou said:
Tampers also degrade the ballast generally, and cause alignment issues. Though they're generally corrected mid tamp and Dynamic Track Stabilisation helps, where in use.
My last job was buying two new tampers for LU, the first such purchase in 35 years.
One of the big reasons, apart from enhanced plain line output, was a move to concrete bearer P+C layouts. Those things are bloody heavy.
You shouldn't be getting alignment issues??? Are you doing tamping designs or just smooth tamping?My last job was buying two new tampers for LU, the first such purchase in 35 years.
One of the big reasons, apart from enhanced plain line output, was a move to concrete bearer P+C layouts. Those things are bloody heavy.
I missed out on the shifts but the WCML will Squadron tamp with 2x Parent and Child tamper setups to tamp all 4 roads through S&C, to lift the massive concrete bearers.
Yeah something like 4kg of fines, per bed, per tamp, wheras stoneblowing is far less damaging and tends to hold longer.
Some insist on geometry files and designs, I.e West Coast Main Line, others don't bother, and rely on the machines own automatic lift/line calculations.
I been working them for 12 years, and I still enjoy it. I'm working one tomorrow morning in fact. As said above, the worksites can be a pita sometimes. You get to know the picops (person in charge of possession) and the Engineering Supervisors over time, and that can help things along a bit.
anonymous said:
[redacted]
I went on a Shinkansen a few weeks ago and I think you're correct about it running on the slab. Also when it goes into the mountains where there is snow they have fitted the tracks with sprinklers to reduce the risk of freezing up.Fabulous solution unless you're in the lower cabin of the split carriage and then your windows get blasted with antifreeze every 100yds or so. Not good for sleeping!
Baz Tench said:
JB! said:
iphonedyou said:
Tampers also degrade the ballast generally, and cause alignment issues. Though they're generally corrected mid tamp and Dynamic Track Stabilisation helps, where in use.
My last job was buying two new tampers for LU, the first such purchase in 35 years.
One of the big reasons, apart from enhanced plain line output, was a move to concrete bearer P+C layouts. Those things are bloody heavy.
You shouldn't be getting alignment issues??? Are you doing tamping designs or just smooth tamping?My last job was buying two new tampers for LU, the first such purchase in 35 years.
One of the big reasons, apart from enhanced plain line output, was a move to concrete bearer P+C layouts. Those things are bloody heavy.
I missed out on the shifts but the WCML will Squadron tamp with 2x Parent and Child tamper setups to tamp all 4 roads through S&C, to lift the massive concrete bearers.
Yeah something like 4kg of fines, per bed, per tamp, wheras stoneblowing is far less damaging and tends to hold longer.
Some insist on geometry files and designs, I.e West Coast Main Line, others don't bother, and rely on the machines own automatic lift/line calculations.
I been working them for 12 years, and I still enjoy it. I'm working one tomorrow morning in fact. As said above, the worksites can be a pita sometimes. You get to know the picops (person in charge of possession) and the Engineering Supervisors over time, and that can help things along a bit.
Are you Colas out of Rugby?
Tonsko said:
Did you go on the *really* fast one, or merely the fast one? We bought a 14 day travel anywhere ticket, it didn't work for ludicrous speed.
It wasn't the super fast one, although I did go on one of those a couple of years ago when I was here last and it was bloody fast indeed. Similar to the AVE train that runs from Barcelona to Madrid, approx 320km/h.Rick101 said:
We don't want any of that fantastic new technology here. We'll stick with our decades old stock and be happy complaining!
... and if Nige gets his way, no HS2 being built with modern track technology to enable existing stock to approach all their design speeds, let alone new designs and their speeds.Despite this negative slant and one or two others, I will almost certainly vote for him come May ...
HS2 will provide many jobs even before the first wheels turn on it if that ever comes to pass.
JB! said:
You shouldn't be getting alignment issues??? Are you doing tamping designs or just smooth tamping?
I missed out on the shifts but the WCML will Squadron tamp with 2x Parent and Child tamper setups to tamp all 4 roads through S&C, to lift the massive concrete bearers.
Yeah something like 4kg of fines, per bed, per tamp, wheras stoneblowing is far less damaging and tends to hold longer.
I just buy (well, bought) them. I missed out on the shifts but the WCML will Squadron tamp with 2x Parent and Child tamper setups to tamp all 4 roads through S&C, to lift the massive concrete bearers.
Yeah something like 4kg of fines, per bed, per tamp, wheras stoneblowing is far less damaging and tends to hold longer.
No alignment issues afterwards because they line and level as you say.
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