When it comes to constructing tunnels deep underground or beneath rivers, engineers have employed colossal and remarkably powerful tunneling machines. These enormous marvels have proven their capabilities by effortlessly excavating through layers of unforgiving hard rock.

These machines have a very special structure known as the underground monster.
And now, let’s go with Cha 2k to discover the largest giant tunneling machines in the world B or the 7,000-ton monster machine with 7 in the steel core used to dig the highway below. underground at a depth of nearly 60m, now designed and ɱaпufactured because we can only have lotus in Osaka in Japan and is the largest earth pressure equalization tunnel boring machine in the world.

The diameter of each cross section is 17.45m, its total length is 110m and weighs 7,000 tons.
Xe To city has chosen dozens of solutions to replace an elevated road nearly 3m long, but in the end, they chose to buy a bad machine to a tunnel under the center of the city, but today it will have a structure of 2 The floor with 4 highway lanes on both sides has service roads, technical pipes and emergency exits for people at a depth of 61m.
This depth avoids Trouble by a forest of pillars at the base of Uncle Oc’s house, the dense underground cable system, the wrong water pipe in the gas pipe is like the Thien La Dia Vong of 160 high-rise buildings on the surface. Therefore, use the roof of the tunnel deep underground and the most effective method.

The whole machine is a giant cylinder divided into 41 parts and shipped from Japan.
It is placed horizontally, the whole system is lowered.
The initial station of Hong gate iron 25m deep B sky was initially fitted with 260 teeth. Sand towards the electric shaft tunnel, refrigerator, large wheels, multi-directional and crushable alloy die-cast presses and To shave hard rock when the drill rotates the blade to go deep, the rate is cut into a plane with a diameter of 17.5m.
Whether the reaper is rock hard or the soil is mushy.
All equipment must have a crushing solution or be transferred to the line to be taken out.

The orientation of the machine is done by satellite positioning and the laser of the accurate ᴛι̇ɱe has false power and capacity is 25,000 horsepower 58.60KW.
The entire Machine moves at a speed of 10m per day.
If the stool is large, the machine will operate automatically as if it still needs 25 people to control it.
The cutting drill blade is an electromechanical combination that drives the rear drill head.
The giant blade is to drink mud.
It carries slurry and soil to the rear by means of a reel and a board conveyor about 1m wide.
About 850 thousand cubic meters of rock had to be moved out through this system, thousands of meters of cables, steam pipes, chemicals and even water were brought in to supply people to cool the machines and mix the cement solution inside. Yellow.
The first is a very large hydraulic jack system that has a translational effect to move the cutting edge forward.
Thousands of arc-shaped prefabricated concrete elements not 6m thick are continuously brought in by Saigon.

Each supply structure weighs up to 163 tons.
Here, there is a large mechanical hand that brings these components together into a Hong mold.
Each of these secret compartments is wider than Hoai meters, fastening the components is a system of bolts and bolts that lock the panels as if there was a machine to worship.
And this tunnel is expected to be completed within 14 months.
Once completed, the machine will be disassembled to bring to the surface some bare resale parts.
Japanese ɱaпufacturer Hitachi Zosen.

Hitachi Zosen is the leading ɱaпufacturer of chest drilling machines in Japan and has supplied over 1,200 Drilling Machines of all types both at home and abroad.
From the future, Vietnam we carry out a large tunnel project and can import the largest tunneling machine in the world.
International-class projects will certainly save a lot of huɱaп and material resources.