Therefore, three theorems for weight characteristics of statically determinate and indeterminate structures are presented and proved, and the essentials of the problem are explained in this paper.
本文提出和证明了静定、静不定结构重量特性的三个定理，阐明了这个问题的本质。
A new slope stability analysis method, explicitly satisfying all limiting-equilibrium equations, is presented. To make the problem statically determinate, the variational approach is used.
本文在现有变分法求解土坡稳定的基础上，推导了一种能适用于任意有对称面的非均质土坡的稳定分析方法。
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