【作者】 阮怀宁；

【Author】 Ruan Huaining (Hehai University,Nanjing 210024)

【机构】 河海大学；

【摘要】 考虑到实际岩体非均质非线性各向异性等多种性质,为了更加切实有效地进行岩石工程稳定性分析,本文建立了复杂岩体极限平衡理论,并应用这一理论分析了边坡稳定性问题。通过已有试验与理论分析,提出了非均质非线性各向异性岩石破坏准则。按照Drucker公设,导出了塑性本构关系。联立平衡方程与破坏准则,通过极限平衡分析,导出了滑移线场基本公式。应用本文理论,可分析计算各种工程岩体极限应力场。本文解答概括了前人已有的许多经典理论。工程应用分析表明,边坡极限承载力随岩石各向异性增强而不断降低。更多还原

【Abstract】 Nonhomogeneous nonlinear anisotropic rocks are taken into account.A limit equilibrium theory for complex rock masses is constructed in order to make stability analysis of rock engineering efficiently.This theory is applied in the analysis of anisotropic slopes.Through laboratorial and theoretical work,a failure criterion of nonhomogeneous nonlinear anisotropic rocks is suggested.According to Drucker’s postulation,plastic constitutive relations of rocks are derived. The equilibrium equations and the failure criterion are combined.By means of the limit equilibrium analysis, the basic solutions of slip-line fields are obtained.By the application of the present theory,limit stress fields of various engineering rock masses can be computed.The present theory contains many classical theories in the past.In the application of this theory to engineering,it is shown that the ultimate bearing capacity of slopes is decreased by rock anisotropy.更多还原