Design and Research on General Fan for Tunnel Construction
According to the investigation of the conventional gear construction ventilators of various manufacturers,it is found that the common construction ventilators are not suitable for the construction of long and large tunnels with trackless transportation by drilling and blasting method.By studying the parameters such as the air supply requirements of the working face,the air supply requirements of the equipment and the air supply pipeline under the conditions of different excavation depths of various tunnel sections below 3.5 km,a new type of construction ventilator and related construction ventilation methods that are generally applicable to highway and railway tunnel construction are proposed.On this basis,the research on high altitude tunnel is carried out,and the solution of tunnel construction ventilation under high altitude condition is given.