考虑筑坝过程影响下的土石坝应力变形分析

Analysis of stress and deformation of earth and rockfill dams considering the impact of dam construction process

应力变形分析一直是土石坝设计和施工中不可或缺的分析依据。文章以王家堡水库为研究对象,运用有限单元法深入分析了土石坝的分层施工过程及蓄水后的应力分布和变形特征,旨在探究土石坝在筑坝过程中的应力应变特性。计算结果表明,在建模过程中,考虑筑坝过程可使模型分析结果更贴近实际的土石坝应力变形状态,为类似工程安全提供参考。

Stress and deformation analysis has become an indispensable basis for the design and construction of earth-rock dams.This paper takes Wangjiapu Reservoir as the research object to analyze the stress distribution and deformation characteristics of earth-rock dams during layered construction and after impounding by using the finite element method.The calculation results show that considering the damming process in the modeling process makes the model analysis results closer to the actual stress and deformation state of the earth-rock dam,which provides reference for the safety of similar projects.