CAJ | 학술논문

传统的边坡稳定性分析采用刚塑性模型，事先假定滑动面，按极限平衡状态进行计算。滑移面的准确确定及参数选取对计算结果影响很大，此外土是一种散体材料，按采用连续性假设的弹性力学理论分析，在理论上矛盾。针对这一问题，采用颗粒流理论，给出了颗粒流模拟方法，首先对粘土试样的双轴试验进行了数值模拟，并结合摩尔－库仑破坏准则，得到细观参数对宏观特性的影响规律，然后模拟演示了粘性土坡在自重作用下变形破坏的全过程。模拟过程符合滑坡发生、发展、滑动的过程。说明了颗粒流方法模拟边坡变形破坏力学行为的可行性和优越性。
전통적변파은정성분석채용강소성모형，사선가정활동면，안겁한평형상태진행계산。활이면적준학학정급삼수선취대계산결과영향흔대，차외토시일충산체재료，안채용련속성가설적탄성역학이론분석，재이론상모순。침대저일문제，채용과립류이론，급출료과립류모의방법，수선대점토시양적쌍축시험진행료수치모의，병결합마이－고륜파배준칙，득도세관삼수대굉관특성적영향규률，연후모의연시료점성토파재자중작용하변형파배적전과정。모의과정부합활파발생、발전、활동적과정。설명료과립류방법모의변파변형파배역학행위적가행성화우월성。
Traditional analysis methods are based on the rigid?plastic model, which presuppose the location and shape of the sliding surface. They make judgment on the stability of the soil body through the calculation using the limit equilibrium equation. Thus, the result is largely influenced by the suppositions of the sliding surface location and the soil parameters. Moreover, due to the nature of soil as a kind of granular material, it is contradictory to ana?lyze soil with the theory of elastomechanics , which isbased on the continuity hypothesis. In order to solve this prob?lem, this paper proposes a new simulation method based on the particle flow theory. It tests the clay biaxial speci?men, finds out the effect of microscopic parameters on the macroscopic properties based on Mohr?Coulomb failure criterion and suggests a whole process for the testing of clay soil slope deformation under natural gravity. The simu?lation presents the natural process of landslides from occurrence, development to slipping of landslides. The result proved the feasibility and superiority of the particle flow modeling method for the research of slope deformation fail?ure mechanics.