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How To Dig In The Biggest Tunnel In Europe

Aug 05, 2018

Creating 10 new stations, a new 118 km (73 miles) railway line with a new tunnel of 42 km (26 miles) is not easy. Not to mention one of the world's major cities, London underground, the project is huge and staggering. But this is the task of the British Crossrail railway line. In May, at the two ends of the big tunnel, now let's take a look at the small armor.


The new Crossrail railway line in the UK provides 42 km of new tunnels (26 miles) underground in London.



The shutter machine creates a space for removing concrete before pouring and leaving behind cast-in-place concrete.


Precast concrete segment left by tunnel boring machine in section tunnel


During construction, busy construction site roads



The cement tanker looks so small in the tunnel


The main excavation of the tunnel is clay



One of the spongy tunnel connections at the crossbeam of the lington station.


The tunnel walls are reinforced with a mixture of steel fiber reinforced concrete.


An equipment warehouse at the llington station



The cable hanging on the wall



The equipment storage points at the lington station, oil and tubing used in various engineering equipment.



The cable decoration wall at the llington station



Europeans treat the tunnel like a road, with separate sidewalks for people to walk along, alongside dedicated access to engineering equipment such as excavators.



A rubber track type earth moving vehicle at the construction site of the ticket hall in the eastern part of France.


Look up at the bottom of the East ticket office.


The tunnel to the west of the llington station.


A perforating equipment under construction in the eastern ticketing hall.




A team at the bottom of the East ticketing hall is planning a perforation path alongside the rig.



Construction site map


The place where the big bit is leaned is the east wall of the ticket hall




The corner of the underground site of the llington station.



In the tunnel, a excavator is under construction. The careful armour friends will find that there are thick protective shells outside the exposed cylinder, or the excavator, which is designed directly under the small arm, "for the tunnel."


Two tunnels in llington



A shutter machine before laying the waterproof layer


Behind the surveyors are stacked waterproof lining.



After the waterproof lining is laid well, the shutter will pass through the well waterproofing layer of the tunnel.



The ceiling is a huge temporary ventilation pipe.



A surveyor is measuring the distance of the shutter.



Construction site map


The measuring instrument is equipped with infrared ranging and electronic display screen.



Strong safety helmets, earplugs, dust respirators, gloves and other protective 名媛直播 are essential.



The European rigour, the neat tools, the sidewalks in the tunnel and the passage of the engineering equipment, the hanging of the ventilator, the wire and the pendulum of the lamps and lanterns... A lot of places we need to learn in actual construction. I have seen the method of underground tunnel construction in London, and I believe it will help the vast majority of friends in tunnel construction.