应用有限元程序建立了数值模型，利用有限差分法对稳态工况下的桥面融雪过程进行热力仿真分析，以山区温泉水为热流体介质研究了环境温度为 －5 ℃、表面风速为2m/s、水温为 15℃条件下埋管间距、埋管深度对融雪过程中桥面温度分布及热流密度的影响规律．结果表明:埋管周围等温线分布较密，热流密度较大;埋管深度与埋管间距对桥面温度与热流密度分布的均匀性有较大的影响，较小的埋管深度与埋管间距有利于提高桥面表面温度并具有较大的热流密度，促进融雪进程和速率．综合考虑融雪效果、施工、经济性等多方面的因素，建议埋管深度为 2cm，埋管间距为 15cm．

In this paper,first,a numerical model was established with finite element program.Then,a thermody-namic simulation on the snow melting process of bridge decks in steady state was made by means of finite differencemethod.Finally,by taking mountain thermal spring water as a hot fluid medium,the influences of pipe- buryingdepth and pipe spacing on the temperature distribution and heat flux density of bridge decks were investigated at anambient temperature of －5℃,a surface wind speed of 2m/s and a water temperature of 15℃.The results showthat (1) there are dense isotherms and high heat flux density around buried pipes; (2) both pipe- burying depthand pipe spacing produce great impact on the distribution uniformity of deck surface temperature and heat flux den-sity; and (3) smaller pipe- burying depth and pipe spacing may result in higher deck surface temperature as well asheat flux density,and may accelerate snow melting and its velocity.Therefore,considering such comprehensivefactors as snow melting effect,construction and economy.it is suggested that pipe- burying depth should be 2 cmand pipe spacing should be 15cm.