Abstract: Energy pile is a form of geothermal energy application that combines a ground source heat pump system with an underground structure. A heat storage reinforced concrete pipe pile was proposed. For the thermal-force response of energy piles in sand, a large-size model test system was built to carry out the thermal-force response test of concrete pipe piles in winter conditions. The heat transfer performance of concrete pipe piles in sand was investigated, and a comparison of thermo-mechanical response was made between the heat storage-enhanced concrete pipe pile and the ordinary pipe pile. The experimental results show that the spiral heat exchange tube can optimize the heat transfer path and reduce the inhomogeneity of radial heat transfer, that the filling of phase change material in the hollow of the pipe pile improves the heat transfer performance by 15.4%, and that the temperature change of thermal influence of the soil in the range of 1 times the diameter of pile side is only 0.5 ℃. The integrated reinforcement of phase change material and heat-conducting fins did not further improve the heat transfer performance of the energy pile, but the temperature change of the pile was reduced by 4.8% compared to the pile without fins, and the soil temperature surrounding the pile was reduced by 24.2%. However, the integrated reinforcement changed the heat transfer path of the pile, which had a great impact on the thermal stress in the pile.