有限元法在取水口边坡开挖支护中的应用

Application of finite element method in excavation and support of water intake slope

某工程取水口常年处于水库深水位以下,不具备检修条件,在取水口基坑开挖过程中形成的高边坡若出现破坏,将会造成取水口阻水甚至堵塞,直接影响整个工程的运行。采取有限元法对边坡开挖的稳定、支护后的应力及分布情况、开挖顺序的合理性进行验证,证明设计的合理性和可行性。

The water intake of some a project is always below the deep water level of the reservoir, its maintenance is impossible. The high slope is formed in the excavation of foundation pit of water intake. If the high slope is breakdown,which would cause the water resistance and block for water intake, and directly effect on operation of the project. Then the finite element method is used to verify the stability of slope excavation, the stress and distribution condition after slope reinforcement and the rationality of excavation sequence. The rationality and feasibility of design is proved.