![](../../../images/common/1x/img_tunnel_lesson_title.png)
Amazing world of tunnels
Learn more about the tunnels that are indispensable to our lives!
Meet amazing machinesHeavy machinery and
equipment used to build tunnels
A quick look at the heavy machinery and equipment used for tunnel work
![](../../../images/lesson/mountain/machine/img_tunnel_machine_1.png)
Drill Jumbo
For drilling (digging small holes) in hard rocks
![](../../../images/lesson/mountain/machine/img_tunnel_machine_2.png)
Roadheader
For excavation of bedrocks and soils
![](../../../images/lesson/mountain/machine/img_tunnel_machine_3.png)
Shotcreting machine
For spraying concrete on the tunnel walls
![](../../../images/lesson/mountain/machine/img_tunnel_machine_4.png)
Steel support erector
For erecting steel support to reinforce the excavated tunnel.
![](../../../images/lesson/mountain/machine/img_tunnel_machine_5.png)
Breaker
For crushing rocks and concrete
![](../../../images/lesson/mountain/machine/img_tunnel_machine_6.png)
Loader
For placing excavated rocks onto a dump truck or into a crusher
![](../../../images/lesson/mountain/machine/img_tunnel_machine_7.png)
Tunnel lining form
A formwork used for pouring concrete on the tunnel walls
![](../../../images/lesson/mountain/machine/img_tunnel_machine_8.png)
Heavy dump truck
For carrying the excavated rocks out of the tunnel
![](../../../images/lesson/mountain/machine/img_tunnel_machine_9.png)
Continuous belt conveyor
For carrying the excavated rocks out of the tunnel
![](../../../images/lesson/mountain/machine/img_tunnel_machine_10.png)
Crusher
For crushing excavated rocks into pieces small enough for easy transportation
![](../../../images/lesson/mountain/machine/img_tunnel_machine_11.png)
Batch plant
A facility where aggregate, cement, water, etc. are mixed to produce concrete
![](../../../images/lesson/mountain/machine/img_tunnel_machine_12.png)
Water treatment facility
A facility to turn muddy water from the construction site into clean water
![](../../../images/lesson/mountain/machine/img_tunnel_machine_13.png)
Soundproof door
A steel door to prevent the excavation noise from leaking out of the tunnel
![](../../../images/lesson/mountain/machine/img_tunnel_machine_14.png)
Tent-type muck storage area
Temporary storage place for the rocks taken out of the tunnel
![](../../../images/lesson/mountain/machine/img_tunnel_machine_15.png)
Ventilation line
For sending fresh air to the working face of the tunnel
![](../../../images/lesson/mountain/machine/img_tunnel_machine_16.png)
Ventilation fan
For sending fresh outside air into the tunnel
![](../../../images/lesson/mountain/machine/img_tunnel_machine_17.png)
Dust collector (Scrubber)
For collecting and removing dust