水平荷载作用下输电塔斜掏挖基础承载特性分析

Inclined excavated foundation has advantages of lowering the horizontal force of foundation columns and improving the bearing capacity of foundation. It is widely used in transmission line engineering. In this paper, combined with the characteristics of transmission tower foundation and the actual bearing characteristics of piles and soil, it uses finite element analysis software ABAQUS to build the foundation and soil interacting system finite element three-dimensional entity model. In the case of homogeneous foundation，analyzing the effects of soil parameters on load-bearing characteristics and the failure mode of foundation of inclined excavated foundation. The results show that regardless of the positive and negative inclined excavated foundation, the development of soil stress changes and plastic yield zone has consistency. Soil parameters have large influence on the horizontal bearing capacity of foundation. In the case of ultimate bearing capacity, the pile body of inclined excavated foundation rotates, it explains that it has capsizing damage; negative inclined excavated foundation has stronger capacity to resist capsizing. The result has certain reference value for practical engineering applications.