寒冷地区地铁隧道洞口及风井处热环境实测研究  

Field experiment of thermal environment at subway tunnel entrance and air shaft in cold zone

作　　者：张思凯 高然[4] 杨长青[2] 李安桂[2] 杜五一[3] Zhang Sikai;Gao Ran;Yang Changqing;Li Angui;Du Wuyi(Zhongye Changtian International Engineering Co.,Ltd.,Changsha;Xi’an University of Architecture and Technology,Xi’an;China Railway First Survey and Design Institute Group Co.,Ltd.,Xi’an)

机构地区：[1]中冶长天国际工程有限责任公司,长沙 [2]西安建筑科技大学,西安710055 [3]中铁第一勘察设计院集团有限公司,西安 [4]西安建筑科技大学建筑设备科学与工程学院,西安710055

出　　处：《暖通空调》2023年第1期136-142,共7页Heating Ventilating & Air Conditioning

基　　金：国家自然科学基金资助项目(编号:51878533);陕西高校青年创新团队“大型公共建筑空气环境保障科技创新团队”项目(编号:Z20220574)。

摘　　要：为明确冬季寒冷地区隧道洞口、风井处的热环境变化,选取兰州市地铁一号线进行了长期实地测试。分别对地铁隧道洞口段、区间风井相邻隧道处的测试结果进行了分析,结果显示:无论是隧道洞口或区间风井相邻隧道内,都应加强夜间列车停运时的保温;当隧道内行车时,行车间隔时间越短,隧道内温度随着与洞口或风井距离的增加上升值越大;隧道洞口段壁面温度主要受埋深影响,当隧道深埋时,受地热作用壁面温度较为稳定并远高于0℃。实测结果可为明确寒冷地区地铁易发生冻害处热环境变化规律提供数据支撑。In order to clarify the thermal environment changes at the tunnel entrance and air shafts in cold zone in winter, Lanzhou Metro Line 1 is selected for long-term field testing. The test results of the entrance section of the subway tunnel and the adjacent tunnel of the interval air shaft are analysed, respectively. The test result shows whether it is the tunnel entrance or the adjacent tunnel of the interval air shaft, the heat insulation should be strengthened when the train is out of service at night. When there is traffic in the tunnel, the shorter the interval time between trains, the greater the temperature rise value in the tunnel with the increase of the distance from the entrance or air shafts. The wall temperature at the tunnel entrance is mainly affected by the buried depth. When the tunnel is deeply buried, the wall temperature is relatively stable and much higher than 0 ℃. The results of this field measurement can provide data support for clarifying the law of thermal environment changes where is prone to freezing damage in the subway in cold zone.

关 键 词：地铁隧道 洞口 风井 热环境 气温 壁面温度 寒冷地区 行车间隔 

分 类 号：U457[建筑科学—桥梁与隧道工程] U231.94[交通运输工程—道路与铁道工程]