基于迭代模型的地铁车站空气温度逐年演化特性研究

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中图分类号：TU831.6 文献标志码：A

Abstract： Based on the principle of air heat balance in subway stations， an iterative fluid-solid coupling model of subway station air and soil was proposed to study the annual evolution characteristics of air temperature and the heat storage and release in surrounding rock and soil. This approach reveals the yearly evolution law of subway station air temperature under standard operating conditions with current air-conditioning supply settings. Results show that with dynamic input of the subway station air heat balance parameters， the iteratively calculated air temperature increases annually. The hottest month，August， rises from 24.2∘C in the first year to 27.3∘C in the

15th year， while the coldest month， January， increases from 11°C in the first year to 16.8°C in the 15th year. During the early operation of the subway station， the heat absorption by surrounding soil decreases yearly; after reaching saturation， the heat storage and release show little annual change. The proportions of heat entering the station from the outdoor side during the air-conditioning season， soil heat absorption， and equipment and lighting heat dissipation all decrease annually， while the proportions of heat entering from the tunnel side and heat from passengers increase over the years. Compared with previous research schemes by the project team， this iterative model more accurately captures the annual evolution characteristics of station air temperature， offering greater engineering practical significance.

Keywords： subway station； iterative fluid-solid coupling model of air and soil； air temperature; annual evolutioncharacteristics

伴随着轨道交通的快速发展，地铁车站内部空气温度及车站通风空调系统能耗与节能问题逐渐受到关注[1]。（剩余6147字）