关键词: 白鹤滩水电站, 缆机基础, 桩基承载特性, 非线性有限元分析

Abstract: Combined with the cable crane foundation project on left bank of Baihetan hydropower station, the paper introduces the design of the cable platform and the pile foundation in the overburden. The MIDAS-GTS nonlinear finite element analysis software is used to simulate the bearing characteristics of three representative pile foundations in the overburden for low cable crane on the left bank and the maximum horizontal displacement and vertical displacement of the pile foundation under the most unfavorable working conditions are obtained. At the same time, the paper analyzes the influence of soil nonlinearity, pile-soil contact surface, overburden soil effect, slope load and other factors on the calculation results, which can provide reference for similar projects.

Key words: Baihetan hydropower station, cable crane foundation, bearing characteristics of pile foundation, nonlinear finite element