CAJ | 학술논문

为研究地下道路复合式路面温度场特征，通过在地下道路复合式路面结构层中埋设温度传感器进行实地观测，基于实测数据，运用ANSYS有限元分析方法对地下道路复合式路面结构温度场进行数值模拟，模拟分析了地下道路复合式路面结构温度场随环境温度变化特征及深度方向的温度变化情况。分析结果表明：地下道路内空气温度在一天中各时刻变化不太明显，夏季外界空气温度比地下道路内的最低空气温度高3℃左右；冬季地下道路路表温度比外界空气温度高，外界空气温度达到零度以下时，地下道路内温度始终保持在零度以上；地下道路复合式路面结构设计时对于水泥混凝土板可以不用考虑由温度梯度过大而引起的温度应力。研究结果为地下道路复合式路面结构受力分析和长期性能研究提供了一定借鉴和参考。
위연구지하도로복합식로면온도장특정，통과재지하도로복합식로면결구층중매설온도전감기진행실지관측，기우실측수거，운용ANSYS유한원분석방법대지하도로복합식로면결구온도장진행수치모의，모의분석료지하도로복합식로면결구온도장수배경온도변화특정급심도방향적온도변화정황。분석결과표명：지하도로내공기온도재일천중각시각변화불태명현，하계외계공기온도비지하도로내적최저공기온도고3℃좌우；동계지하도로로표온도비외계공기온도고，외계공기온도체도령도이하시，지하도로내온도시종보지재령도이상；지하도로복합식로면결구설계시대우수니혼응토판가이불용고필유온도제도과대이인기적온도응력。연구결과위지하도로복합식로면결구수력분석화장기성능연구제공료일정차감화삼고。
s:In order to study temperature field characteristics of composite pavement of underground road , the variation of temperature field in composite pavement of underground road was continuously observed on-site by burying temperature sensors in the structure layer of the composite pavement, and a lot of important measured data were obtained. Based on these data, the temperature field mod-el of the composite pavement was established by means of the finite element method in ANSYS. The analysis results show that the variation of air temperature above the underground road is not obvious, and the outside air temperature is 3 ℃ higher than the minimum air temperature above the under-ground road in summer. The surface temperature of the underground road is higher than the outside air temperature in winter, and the underground temperature in the road remains above freezing point when ambient air temperature falls below zero. Therefore, the temperature stress caused by excessive temperature gradient of cement concrete slab can be neglected in the design of underground roads. The study will provide a reference for stress analysis and long-term performance of composite pave-ment of underground roads.