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In: Civil Engineering

QUESTION : what are the different kind of ventilation use in tunnel while construction and while...

QUESTION : what are the different kind of ventilation use in tunnel while construction and while in use of tunnel and why?

Solutions

Expert Solution

Types of ventillation

  • Natural ventillation
  • Artificial ventillation

Again artificial ventillation is of different types

  • Blowing
  • Exhausting
  • Combination of blowing and exhausting

Another category of ventilation type is

  • Longitudinal ventillation
  • Transverse ventillation

There are various types of ventilation systems in tunnel construction provided to remove dust and poisonous gas during its construction and operation.

During construction

The tunnel construction works are mainly carried out by drill and blast method, which have many safety and health issues due to the emission of dust and many poisonous gasses. Hence it is essential to provide ventilation systems in in tunnel during construction.

The main objectives of providing ventilation systems in tunnel are:

  • To provide the working crew an environment of fresh air.
  • To exhaust out fumes and gasses, that is injurious to health and explosive in nature.
  • To remove the drilling, mucking and blasting gasses emitted

After construction

After construction the ventillation is useful for

  • To provide proper fresh air for road users
  • To drive out the smoke released from vehicles
  • To remove any smoke released due to accidents

Ally Wells answered 6 months ago
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