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在柱腔膨胀模型基础上，将细长弹在水平混凝土地面中的斜侵彻过程，化简为刚性弹体沿攻角方向的轴向运动和垂直于攻角方向土层的一维径向运动．对混凝土层引入锁应变本构模型后，可以获得土盘表面作用力的解析表达式，从而求解弹体运动方程．最后，本文以一些典型算例指出斜侵彻过程的主要特征，并进而说明本方法的适用性和合理性．
On the basis of the cavity expansion model, the process of oblique penetration of the elongated projectile in the horizontal concrete ground is simplified to the axial motion of the rigid projectile along the angle of attack and the one-dimensional radial direction of the soil layer perpendicular to the angle of attack movement. After introducing the constitutive model of lock strain into the concrete layer, the analytic expression of the surface force of soil plate can be obtained, and the equation of projectile motion can be solved. Finally, we show some typical examples of the main features of the process of oblique penetration, and then illustrate the applicability and rationality of this method.