铁道科学与工程学报2018，Vol.15Issue(4)：837-845,9.
开孔中隔墙对特长隧道内压力波动的影响研究
Study on the effect of perforated wall on the pressure wave in super long railway tunnel
摘要
Abstract
A one-dimensional unsteady compressible non-homentropic flow model and the method of characteristics of generalized Riemann variables were used to study the pressure wave in a 10 km tunnel with perforated wall induced by a CRH2G with the speed of 300 km, or two CRH2G passing in reverse direction. Taking into account the characteristics of high-speed railway tunnel and the opening in the perforated wall, the thin plate orifice meter model was used. Compared with the results from experiments abroad, it is shown that the mathematical model and the results can accurately simulate the pressure fluctuation in the railway tunnel with perforated wall. The influence of opening area, spacing of the openings and opening pattern on the pressure wave and corresponding peak value in the tunnel were studied. The results can be used as a support for the setting of perforated wall in super long railway tunnel.关键词
开孔中隔墙/特长隧道/高速列车/隧道压力波Key words
perforated wall/super long tunnel/high speed train/tunnel pressure wave分类
交通工程引用本文复制引用
贾永兴,梅元贵..开孔中隔墙对特长隧道内压力波动的影响研究[J].铁道科学与工程学报,2018,15(4):837-845,9.基金项目
中铁科技开发计划资助项目(重点-24-2014) （重点-24-2014）
