中文摘要：

针对有关规范给出的重力锚水平承载力计算公式，采用有限元法研究了重力锚在水平力作用下的破坏机理，从而得到了在相同的工况条件下，重力锚水平承载力与其底面积有关，底面积小于最佳面积范围时，水平承载力随底面积的增加而增加，超过最佳面积范围时，随底面积的增加而减小；在锚底面积相同的条件下，锚底形状对承载力影响不大，正方形底面稍优于长方形。

英文摘要：

According to the calculation formula of horizontal bearing capacity of gravity anchor given by relevant specifications, the FEM is used to study the failure mechanism of horizontal bearing capacity of gravity anchor. The results show that under the same working condition, the horizontal bear capacity of gravity anchor relates to its bottom area, it increases with its bottom area increasing before arriving best cross-sectional area and decreases when pass best cross-sectional area. When the same bottom area, the shape of bottom section does not influence on the bearing capacity obviously, and the square section is a bit better than rectangle.