２－１　土体性质对位移内力的影响图６是改变土体内摩擦角时墙体最大水平位移、最大弯矩、最大剪力和最大支撑轴力（以下简称四项最大值）的变化情况。可以看到：墙体位移内力及支撑轴力几乎均随土体内摩擦角的增加而线性减小，且变化幅度基本相同。如果能采取措施将墙后土体 2-1 Influence of Soil Properties on Displacement Internal Force Figure 6 shows the variation of the maximum horizontal displacement, maximum bending moment, maximum shear force, and maximum axial support force (hereinafter referred to as the four maximum values) of the wall when changing the friction angle in the soil. It can be seen that almost all of the wall displacement internal forces and the supporting axial force decrease linearly with the increase of the internal friction angle of the soil, and the amplitude of change is basically the same. If you can take measures to put the wall behind the soil