Physical model testing and numerical simulation for temperature distribution of mass concrete freezing shaft lining in deep alluvium

摘要

In this study, we conducted an experimental model test and numerical thermal analysis to determine the temperature distribution and thermal gradients of mass concrete freezing shaft lining under the influence of low-temperature frozen soil wall. A non-scaled-down model was built with embedded thermocouple sensors to monitor the temperature distribution of the shaft lining and the frozen soil wall. Transient heat transfer analysis was conducted using ANSYS finite element software to validate the monitoring results of the model test. The temperature distribution at different points along the radial direction in the shaft lining and frozen soil wall are evaluated and compared by using finite element method and experimental work. The results are in good agreement and thus validated.