基于红外热成像技术的滑坡破坏过程温度场变化分析  

Research on the temperature field variation in the process of landslides failure based on the infrared thermal imaging technology

作　　者：金林[1] 胡新丽[1] 谭福林[1] 章涵[1] 何春灿 夏鹏[1] 

机构地区：[1]中国地质大学(武汉),湖北武汉430074

出　　处：《中国地质灾害与防治学报》2016年第1期77-84,共8页The Chinese Journal of Geological Hazard and Control

基　　金：国家重点基础研究发展计划"973"项目(2011CB710604);国家自然科学基金项目(41272305)

摘　　要：采用模型试验是研究滑坡的一种有效方法,红外热像仪在滑坡模型试验中的应用是基于红外检测和热成像原理,利用红外热像仪对滑坡模型坡表温度进行有效、准确、实时地检测并记录,有助于分析滑坡破坏过程中坡表温度场的变化规律,从能量的角度对滑坡破坏过程及其机理进行研究。试验结果表明:滑坡温度场在其破坏过程中呈一定规律的改变,温度总体上呈现逐渐上升,随后逐渐下降,再迅速上升,迅速下降的变化规律,整个过程中温度随时间变化曲线有两个峰值;滑坡纵向从坡肩至坡趾坡表温度逐渐增大;滑坡横向从滑坡边界到中部坡表温度逐渐减小。红外热成像技术的应用为滑坡破坏机理研究提供了一种新的研究方法,使得从能量的角度研究滑坡成为可能,其可行性和可靠性在模型试验中得到了验证。The physical model test is an effective method for landslide research. The infrared thermal imager in the application of landslide physical model test is based on infrared detection and thermal imaging principle.With the infrared thermal imager,the surface temperature of the landslide model can be effectively,accurately and real-timely detected and recorded,which helps to analyze the temperature field variation of the landslide.It is shown that the temperature field of the landslide has a certain regular variation during the landslide failure. The temperature as a whole experiences two ebb and flow,and the temperature change curve over time has two peak. The temperature gradually increases from slope shoulder to Slope toe in the longitudinal direction of a landslide while temperature gradually decreases from boundary to central in the transverse direction of it. The application of infrared thermal imaging technology presents a new research method to study the failure mechanism of the landslide,which makes it possible to study landslides from the aspects of energy,and its feasibility and reliability has been proved in the physical model test.

关 键 词：红外热像仪 模型试验 温度 检测 

分 类 号：TH76[机械工程—仪器科学与技术] P642.22[机械工程—精密仪器及机械]