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湿热地区耐久性沥青路面实测温度场研究 被引量:2
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作者 傅广文 许新权 《广东公路交通》 2016年第2期1-5,共5页
介绍了新型耐久性长寿命路面结构设计方案,通过布设温度传感器对路面结构层内实测温度数据进行采集及分析,表明:路面结构层底温度随时间、深度均有较大变化,路面各结构层底温度随时刻变化存在不同幅度的波动性及热传递滞后性,面层温度... 介绍了新型耐久性长寿命路面结构设计方案,通过布设温度传感器对路面结构层内实测温度数据进行采集及分析,表明:路面结构层底温度随时间、深度均有较大变化,路面各结构层底温度随时刻变化存在不同幅度的波动性及热传递滞后性,面层温度在上升阶段和下降阶段均与气温存在较好的线性相关关系,相关系数达0.975~0.995。 展开更多
关键词 长寿命路面 路面结构层温度 峰值滞后 线性相关 路面深度
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Theory and application of infrared surveying gas gushing technology in coal-rock roadway
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作者 蔡康旭 《Journal of Coal Science & Engineering(China)》 2002年第2期43-48,共6页
Geological structure and gas expansion when gas pressure was released can affect the distribution of infrared radiation energy or temperature at coal rock surface. From this, the foundation of roadway infrared surveyi... Geological structure and gas expansion when gas pressure was released can affect the distribution of infrared radiation energy or temperature at coal rock surface. From this, the foundation of roadway infrared surveying technical was formed. According to the thermodynamic principle of ideal gas and the law of energy conservation, the relation was established between gas gushing amount from coal rock and air temperature to fall in roadway. At the same time, this paper has analyzed coal rock density change that geological structure aroused and the change exerted influences on infrared radiation power at surface, as well as, has analyzed the infrared radiation feature of gas gushing at geological structure district. Application results show that infrared survey technology can be used to analyze and forecast the change of coal rock gas gushing effectively, and to guide the enforcement of the roadway gas project of prevention and handling economically. 展开更多
关键词 ROADWAY gas gushing infrared radiation surveying theory APPLICATION
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