Design of Tangdiling Tunnel Ventilation System and Optimization of Construction Equipment Selection
Well-designed ventilation is the premise to ensure the safety of long tunnel construction.It is necessary to design and opti-mize the ventilation scheme of tunnel and select construction equipment.Based on the actual construction ventilation design of Tangdil-ing Tunnel,this paper introduces the project overview and the determination of ventilation scheme.According to the ventilation charac-teristics of tunnel construction,the required air pressure and air volume of each working face are calculated,and the wind pressure loss under the action of duct friction resistance and the curve is considered.According to the calculation results,the reasonable equipment selection and corresponding optimization and improvement measures in tunnel ventilation construction are studied.The results show that the press-in axial fan and jet fan can meet the ventilation needs of Tangdiling Tunnel construction,and the suitable fan and duct se-lection can meet the requirements of air volume and effectively reduce the wind resistance loss.
long tunnelconstruction ventilationpress-in ventilationselection optimization
NETL
NSTL
万方数据
