Underground tunnels in Krasnoyarsk

• Underground tunnels in Krasnoyarsk

Although railway tunnels do not bring about any secrets, and in the mountain, where the paved tunnel, are unlikely to build a secret bunker or a communication center (although, everywhere there are exceptions), it is they look epic and even something more interesting than underground.

Technological pictures dungeons.

The theme of underground construction has always been interesting for me, but if metrotonneli and construction I have seen enough, the newly built railway tunnel I'm only the second time, and the very first time I saw tunneling.

Diameter w / a tunnel - 9, 5 meters, instead of 5, 5 metropolitenovskih, so their construction also looks bigger.

The entrance to the tunnel:

Manskiy railway tunnel apartment on a plot Taishet-Abakan Krasnoyarsk Railway. Inside tunnel boring machine. The complex has a length of about 100 meters:

The tunnel will have a length of 2460 meters and a diameter of 9, 5 meters. Apart from the main tunnel has already passed technical tunnel for maintenance and evacuation of people from the ground in case of an emergency. Laying tubing - precast elements fixing underground structures:

On an average day is built, or, if it is correct to say, are about 20 meters. All breed that was developed shield goes on a conveyor belt outside the tunnel:

Development of soil is made by rotating on the steel rotor axis with cutters shield. In the photo working on the background of the rotor itself. These machines work and the laying of the longest tunnel in the world in Switzerland:

At the moment, completed more than half of the planned length:

Good complement to Manske tunnel was Active Krolskogo tunnel, which is located on the same railway section and which has already completed.

Krolsky tunnel until it is unique for Russia. Its uniqueness is that it was built without the use of niches in which on a plan of work have to hide from a passing train. Instead niches throughout the tunnel service laid the bridge, which is much more convenient.

Portals in the old and the new tunnels Krolsky:

Old Krolsky tunnel:

Inside. Underground beauty. The tunnel under the plan will soon be reconstructed:

the old tunnel portal:

And this is a new Krolsky tunnel and the same bridge on the left:

The length of the tunnel is 2253 meters:

In this tunnel, even pleasant to be. We waited about a half hour before held any train to shoot him in the tunnel, but it did not work, the train came and we had to go back in the winter Krasnoyarsk.

safety entrance of the tunnel:

We go here ...

... and get into the tunnel - technical tunnel for maintenance and evacuation of people from the ground in case of an emergency:

And the last photo - Tunnel shield.

Depending on the size of the shield, the diameter obtained tunnels can vary from 1 to 19 meters. The largest diameter of 19 meters, four tunnel boring machine used in the construction of the railway Gotthard tunnel in Switzerland.