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采用模型试验是研究滑坡及其抗滑结构的一种有效方法,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抗滑桩区域坡表温度进行有效、准确、实时地检测并记录,有助于分析滑坡破坏过程中抗滑桩所在区域温度场的变化规律,从能量的角度对抗滑桩土拱效应进行研究。试验结果揭示了滑坡抗滑桩区域温度场的分布规律,从温度场方面证实了土拱效应的存在,并揭示了土拱形成过程及其机制;抗滑桩有效地阻止了滑坡推力向桩前发展,发挥了抗滑效果;滑坡发生过程中岩土体应力场、位移场和能量变化是息息相关的。红外热成像技术的应用为抗滑桩土拱效应的研究提供了一种新的研究方法,使得从能量变化的角度研究抗滑桩等防治结构作用机制成为可能,其可行性和可靠性在模型试验中得到了验证。
The use of model test is an effective method to study landslide and its anti-skid structure. The application of thermal imaging camera in landslide model test is based on the principle of infrared detection and thermal imaging. The temperature of the table can be detected and recorded effectively, accurately and in real time, which is helpful to analyze the variation rule of the temperature field in the area where the anti-slide pile landslides during the process of landslide failure. From the energy point of view, the arching effect of the anti-slide pile is studied. The test results reveal the distribution law of the temperature field in landslide anti-slide piles, prove the existence of soil arching effect from the temperature field, and reveal the formation process and mechanism of soil arching. Anti-slide piles effectively prevent the landslide thrust to the front Development and exerting antiskid effect. The stress field, displacement field and energy change of rock and soil during the landslide are closely related. The application of infrared thermal imaging technology provides a new research method for the study of soil arching effect of anti-slide piles, making it possible to study the mechanism of anti-slide piles and other control structures from the perspective of energy change. The feasibility and reliability of the method in the model The experiment has been verified.