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从结构力学原理出发,推出了描述拱坝各力学要素,如拱冠力系、拱端力系,应力、变形与E_R/E_σ(E_R-地基弹性模量,E_σ-坝体弹性模量)的关系式。公式的推导不涉及拱轴线形状,因而适用于任意形式的拱圈,只要该拱圈满足公式推导的基本假设。本文研究了地基弹性模量的改变对各类拱圈形式的坝肩稳定、应力、变形的影响。并对各类拱圈形式做了专门的讨论。
Based on the principle of structural mechanics, this paper introduces the mechanical elements that describe the mechanical properties of arch dams, such as the crown system, the arch system, the stress and deformation, the E_R / E_σ (E_R-foundation elastic modulus and E_σ-dam elastic modulus) Relationship. The derivation of the formula does not involve the shape of the arch axis and is therefore suitable for any type of arch as long as the arch meets the basic assumptions derived from the formula. In this paper, the influence of the change of the elastic modulus of the foundation on the stability, stress and deformation of the abutment in the arch ring is studied. And various types of arch circle made a special discussion.