论文部分内容阅读
基于SMP准则,假定不同平面上的摩擦角随该平面与沉积面之间的夹角变化,提出了一般应力条件下各向异性粒状材料的强度准则,称为ASMP准则,给出了该强度准则在横观各向同性条件下的表达式。对两种典型条件下各向异性砂土强度特性的模拟结果表明,ASMP准则能够较好的反映粒状材料在一般应力条件下的强度变化规律,尤其是材料主轴与应力主轴成任意角度时的强度变化。在此基础上,进一步提出了该各向异性强度准则在典型条件下的实用表达式。
Based on the SMP criterion, the strength criterion for anisotropic granular materials under normal stress conditions is given on the assumption that the angle of friction on different planes varies with the angle between the plane and the deposition plane. This criterion is called the ASMP criterion, and the strength criterion Expression in the condition of transverse isotropy. The simulation results of the strength characteristics of anisotropic sand under two typical conditions show that the ASMP criterion can better reflect the strength variation of granular materials under normal stress conditions, especially when the material principal axis and stress principal axis are at any angle Variety. On this basis, the practical expression of the anisotropic strength criterion under typical conditions is further proposed.