Loetschberg Summit Tunnel (Switzerland) - Installation of the slab track during operation

[@aserta]

Marti seems to have an answer for every engineering challenge.

[@jdmillar86]

Did you also find the Ritom one first and then start watching a bunch of them?

[@akshaypendyala]

@@jdmillar86 That’s me as well 😅, that Ritom video was just 🔥🔥

[@alexdyke194]

super cool. I love the creative solution with the monorail suspended from the ceiling, this never could have been done without it

[@LastOneNW]

I've been bingin every video released, I'm trully amazed by both the quality of these productions as well as the engenuity/quality of the work done on the projects. I really wish my field of work aligned with Marti, seems like an amazing company to work at. Congratz!

[@SomeHomies]

As always, very impressive engineering work and equaly good animations and video overall. Thanks!

[@mathiswiss3305]

it`s appropriate to say, Marti is the worlds best tunnel constructing company. 😀👍

[@BilltheTulaneGuy]

Sincerely, The single greatest ad dollar investment in history. Before you’re last vid I’d never heard of Marti…lol

[@JuhaErkkila]

Fascinating to see that pretty much anything can be done! Nice engineering job!!!

[@JUSTENization]

This is amazing engineering, especially the plannings. Salute to all men and women working this project. Such an eye opening.

[@johndododoe1411]

Impressive work, this is how rail upgrades should be done, instead of shutting down traffic repeatedly for years.

[@rp1645]

Thank you for all your outstanding videos. I see the Easter block works seem a lot more "FRIENDLY" to filming them work, than the American Tunnel "HOGS" this is just amazing design of equipment and the workers knowing what they do.

[@rustythecrown9317]

Awesome commercial for the marti group.

[@cyclonicleo]

Excellent stuff. Really innovative solutions here.

[@wadiyaVideos]

Thanks 💐💐

[@dearjonboy]

a lot easier to understand in English thankyou

[@theroomofwall1162]

I just enjoy these videos

[@marlukcz]

I wonder how easy it will be to renovate all this concrete after 30 years.

[@johnnycomelately6341]

Great video 2 questions was the air quality monitored was there an inspector checking for foreign material on the adjacent operational line

[@philippjorda4671]

Howdy, as a friend of an SBB employee and a Swiss citizen I cannot give you a definitive answer, but I can give you some general information: 1. Air quality has to be monitored in every workplace in Switzerland where there is a risk of having polluted air. This is a rule made by the SUVA, (Schweizerische Unfallversicherungsanstalt = Swiss Accident Insurance Fund) so it probably was obligatory. 2. Depending on the construction Site, Safety precautions and how close your work is to the trains, they are only permitted to drive by with speeds between 40 to 80 km/h (~25mph to ~50mph). In the video it looks rather like the lower. In Switzerland this is a speed at which you can "drive by sight", so i guess the train driver could spot obstacles himself and break soon enough. (Sorry for the spelling, grammarly had a seizure) have a nice one!

[@johnnycomelately6341]

@@philippjorda4671 Thank you for replying

[@GalderIncarnate]

Carl at 9:49 would like to have a word with you.

[@JoeyLovesTrains]

I hope they do a similar solution to the east and north river tunnels under New York

[@brazenh2836]

It's kinda ironic to me that this takes them so long to do (and yes precision is for longevity) but then they have rails in Eastern Europe that are basically off roading for trains and they still work well enough...

[@gagaringagarinovic2600]

balkan is just built different :D

[@GFSwinger1693]

Are the cross tie blocks rubber?

[@general_p2962]

This is addictive

[@gsbdrums]

you guy are geniuses

[@theflyingfool]

Ingenious!

[@giovanni4151]

how does the concreate absorb the vibrations?

[@marvintpandroid2213]

The concrete doesn't, however there are rubber pads under the rail and the rail its self is laid to a very high level of accuracy as to prevent vibrations and shock loads.

[@thebeautifulones5436]

Why didn't they just replace the rails? Do concrete sleepers sheltered in a tunnel degrade that much?

[@theVtuberCh]

The concrete sleepers get strained by the trains going over them. With each train the sleeper flexes a tiny amount. Over time cracks form and grow.

[@snooptech]

I want to work at Marti

[@ellesmerewildwood4858]

Though these people are exponentially smarter than I am, when all that new work reaches the end of it's service life, all that concrete is going to be a b*tch to remove. It's much easier to remove and replace ballast, especially in the cramped space inside the tunnel.

[@ayalaamaury]

Wow geat company. Is it publicly traded?

[@redstonerelic]

does not look like it, website says family owned

[@roberthuber5589]

Super Unternehmen

[@RemSupernova]

Perfect!

[@jackdaniels25522]

Blausee?

[@seilsam]

Renoviert doch einfach den ganzen Tunnel und nicht dreiviertel, wir sind in der Schweiz. 🇨🇭

[@TrainPlaneSpotter]

es wird ja die ganze fahrbahn renoviert?

[@seilsam]

@@TrainPlaneSpotter Sie verlangen (nicht im Video erwähnt) 60 Mio mehr laut Medien weil sie den giftigen Abfall aufwendig entsorgen müssen und sie wollen sich auf 40mio dafür nicht alles renovieren Ja schau SRF Rundschau

[@juansalvo3981]

ungehindert in Dietikon zu bauen 3 km der Straßenbahn bereits über anderthalb Jahre

[@YasinSeguya]

Marti is the answer for all engineering problems 🫡