Visualization of Execution Ability and Bearing Capacity of Screw Pile Using Thermography

本研究提出了一种适用于螺旋桩执行力和承载力评价的热成像可视化方法。当砂粘土混合比为7:3、含水率为7%时，温度分布与应力之间的相关性通过热像图表现得最为明显。试样与灯的适当距离为60cm，加热时间为15s。根据这些结果，以4种不同的贯入速度将桩打入土中。因此，可以利用热成像图像来评价螺旋桩的性能和土的流动性。

This Study proposes a method of visualization using thermography suitable for the evaluation of execution ability and bearing capacity of the screw pile. The correlation between the temperature distribution and stress appears most clearly by thermography with a sand : clay mixing ratio of 7:3 and with a water content of 7%. And the proper distance from the test samples to the lamp was 60cm and proper heated time was 15seconds. Based on these results, the pile was driven into the soil at 4 different penetration speeds. As a result, it is possible to evaluate the performance of a screw pile and the mobility of soil using thermography images.