Abstract:Three static soil resistance analysis methods, i.e. standard penetration method, API code method and port code method, are introduced in detail. The constant coefficient method, linear method, non-linear method, index method and stress history method are used to simulate the law of soil strength attenuation of the soil during the continuous driving process, and the driving analysis is carried out in combination with the actual project. The results show that when the static resistance of the soil around the pile is determined based on the standard penetration method in GRLWEAP program and the constant coefficient reduction method is used to simulate the strength attenuation of the soil around the pile caused by continuous driving, the analysis results are closer to the actual driving records of the project. In the process of continuous pile driving, the strength of the clay layer with shallow buried depth weakens significantly, which should be paid more attention to in the prediction of pile-running.