Influence factor analysis of geotechnical thermal response test accuracy for ground-coupled heat pumps

Establishes a dynamic simulation model of geotechnical thermal response test, and verifies the accuracy of the model by experiments. Based on the data processing method of linear heat source model, analyses quantitatively the influence rules of different influence factors on the accuracy of the simulation results. The results show that, in order to ensure the accuracy of the test results, the test continues 72 hours at least, the deletion length of data in the early stage of the test is more than 12 hours, the strong turbulent flow is maintained in the pipe, and the stability of heating power shall be improved as much as possible, otherwise other data processing methods ought to be adopted.