How are train tracks laid?YouTube↗  IA↗(long shot)
Autos & Vehicles  2.3K views 59 likes 3 dislikes   18 May 2020
The Train Story 29.2K subscribers India YouTube↗


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Trains provide fast, energy-efficient and
Los trenes brindan rapidez, eficiencia energética y
an environment-friendly mode of transit
un modo de tránsito amigable con el medio ambiente
Trains run on rails.
Los trenes circulan por rieles.
While a casual look
Mientras que un look casual
at a railway track would indicate
en una vía de ferrocarril indicaría
that track laying would be fairly straight forward.
ese trazado de pistas sería bastante sencillo.
Put in the sleepers,
Poner en los durmientes,
bolt on the steel rails and trains are good to go.
atornillar los rieles de acero y los trenes son buenos ir.
However, a lot more goes
Sin embargo, va mucho más
into laying of railway tracks.
en la colocación de vías férreas.
In a cross-section, a railroad at it's very basic
En una sección transversal, un ferrocarril es muy básico.
will comprise off a subgrade, bottom ballast,
comprenderá un subsuelo, lastre inferior,
sleepers, rails and top ballast
traviesas, rieles y lastre superior
The subgrade is prepared by removing
La subrasante se prepara eliminando
all obstacles and compacting it
todos los obstáculos y compactarlo
Water is the biggest enemy of a railroad
El agua es el mayor enemigo de un ferrocarril.
any stagnant water can weaken the
cualquier agua estancada puede debilitar el
railway structures and compromise
estructuras ferroviarias y compromiso
its load-bearing capacity.
Su capacidad de carga.
To prevent waterstagnating below the railroad,
Para evitar el estancamiento del agua debajo del ferrocarril,
the sub-grade is provided with an incline
el subgrado está provisto de una inclinación
which is usually recommended at 1 in 40.
que generalmente se recomienda a 1 de cada 40.
This ensures that water will not stagnate
Esto asegura que el agua no se estanque
and will drain off.
y se vaciará
After the sub-grade has been prepared
Después de que se haya preparado la sub-calificación
a bed of ballast -called the bottom ballast is laid.
se coloca una cama de lastre, llamada lastre inferior.
The ballast is made up of rough-edged stones
El lastre está hecho de piedras de bordes ásperos.
because the sharp edges of the stones
porque los bordes afilados de las piedras
make it difficult for them to slide over each other
dificultarles que se deslicen unos sobre otros
in the way that smooth pebbles would.
en la forma en que lo harían los guijarros lisos.
Thus, effectively locking them in place.
Por lo tanto, efectivamente encerrándolos en su lugar.
The sleepers or ties are then
Los durmientes o corbatas son entonces
laid over the bottom ballast.
colocado sobre el lastre inferior.
In the pre-mechanization days,
En los días previos a la mecanización,
this process was done manually
este proceso se realizó manualmente
Most railways today use
La mayoría de los ferrocarriles usan hoy
automated track-laying machines.
máquinas automatizadas de colocación de orugas.
These machines can lay as much as
Estas máquinas pueden colocar tanto como
a mile of track in a single day
una milla de pista en un solo día
After the sleepers and the rails are laid
Después de que se colocan los durmientes y los rieles
the top ballast is added.
Se agrega el lastre superior.
The ballast serves as a load-bearing structure.
El lastre sirve como estructura portante.
It holds the tracks in place as trains pass over
Mantiene las vías en su lugar cuando los trenes pasan
and facilitates drainage of water
y facilita el drenaje de agua
A tamping machine compacts the ballast
Una apisonadora compacta el lastre
into a tight fit
en un ajuste apretado
with the tracks and the sleepers.
con las pistas y los durmientes.
It also checks track geometry and
También verifica la geometría de la pista y
maintains the correct alignment of both rails.
mantiene la alineación correcta de ambos rieles.
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