English：

In some foundation excavation engineering, inclined pile and multi-stage support can reduce or eliminate the use of support and increase the depth of cantilever support. Based on the engineering example, the influence of parameters such as height ratio, platform width and inclined angle on the supporting effect was analyzed by numerical calculation method.The results show that the combination of inclined pile and multi-stage support can significantly control the displacement, and the maximum displacement mainly occurs in the first stage support. When the first stage support height is small, the inclined multi-stage support structure should be selected. Otherwise, the inclined multi-stage support structure should be selected. When the platform width is less than 1 times the depth, increasing the platform can reduce the pile displacement more significantly. When the platform width is more than 1 times the depth, the pile displacement tends to be stable with the change of platform width.The first level is that the pile displacement decreases more with the increase of inclination Angle in the range of 0°-5°, and then the change tends to be uniform.When the supporting space is larger and the displacement control requirement is more strict, the two-slope multistage supporting structure can be adopted.