Simulation and Analysis of the Thermal-Mechanical Response of an Energy Pile

Abstract An energy pile undertakes the functions of supporting superstructure and controlling indoor temperature building, thermal-mechanical coupling response an makes its load transfer mechanism different from that conventional engineering piles. Moreover, responses piles in summer winter conditions are also need to be explored separately. Based on a ground source heat pump foundation workshop project Kunshan city, Jiangsu Province, multiphysics simulation study was carried out. The results outlet water settlement consistent with real-world measurements, which verifies reliability numerical simulation. distribution, axial stress, lateral shear were analyzed, laws seasons obtained. Compared pure state, under effect conditions, maximum compressive stress body is reduced by about 11.5%, but top increases 47.66%. Therefore, should used as design for normal use pile. control condition limit state: compared 12% decreases 7.23% condition. state body’s carrying capacity.