Calculation of Ventilation Air Volume and Selection of Equipment in Tunnelling Construction(6)

6. Safety management measures

6.1 When using press-in ventilation, a protective cover should be set at the air inlet of the ventilation fan to prevent clothes, wooden sticks, etc. from being drawn into the fan and injuring people.

6.2 The ventilation fan should be equipped with a canopy to prevent the ventilator from being wetted by rainwater, which may cause electric injury or short-circuit failure.

6.3 In the case of press-in ventilation, the outlet of the ventilation duct should be hung firmly to prevent the outlet of the air duct from falling off and violently swinging and beating the construction workers under the action of the wind.

 


Post time: May-31-2022