根据V画面体视投影原理，推导了V画面体视变换矩阵及V画面体视简易方程；
The transform matrix and the simple equation of the stereo in V plane are deduced .
以简单指标建立的抗剪强度参数简易求算方程成立。
The shear resistance coefficient equation is established by those simple indicators .
简易方程