Influence of building topography around high-speed railway foundation on wind environment and thermal comfort

The influence of the surrounding building topography Datong-Xi?an high-speed railway foundation on wind environment and thermal comfort is studied, especially outdoor indoor air-flow organization buildings are analyzed numerically, terrain temperature wind?s speed distribution systematically evaluated. results show that roadbed has a significant effect site, affecting natural ventilation in summer wind-proof energy-saving winter. reduces by 30.5%, it increases winter 31.6%; personnel activity area around less than 0.35 m/s, leading to comfortable body feeling.