祥和隧道不同气候因素自然风分布规律研究

Research on Natural Wind Distribution Law of Different Climate Factors in Xianghe Tunnel

杭绍台高速公路祥和隧道地处低山丘陵地区,属越岭隧道,由于洞口气候环境、海拔等自然因素差异,导致隧道各洞口存在一定的温度、气压差,从而在洞内形成不稳定的自然风。为考虑将自然风充分利用,实现隧道节能运营,结合祥和隧道,通过数值模拟的方法对不同气候工况下隧道内的自然风分布情况进行研究,以获得洞外气候因素对隧道内自然风的影响规律,为隧道的自然风利用提供理论基础。

Xianghe tunnel of Hangzhou-Taizhou Expressway is located in the low mountain and hilly area,which belongs to the tunnel crossing the mountains.Due to the differences in the climatic environment,altitude and other natural factors at the entrance of the tunnel,there is a certain temperature and air pressure difference at each opening of the tunnel,thereby forming an unstable natural wind.In order to make full use of the natural wind and realize the energy-saving operation of the tunnel,combined with the Xianghe tunnel,the distribution of the natural wind in the tunnel under different climatic conditions is studied by numerical simulation,so as to obtain the influence law of the external climatic factors on the natural wind in the tunnel and provide theoretical basis for the use of the natural wind in the tunnel.