【作者】 彭辉； 刘德富； 彭惠明；

【Author】 Pen Hui, Liu Defu, Peng Huiming(Department of Civil & Hydroelectric Engineering of China three Gorges University. Yichang 443002 China)

【机构】 三峡大学土木水电学院；

【摘要】 拱坝是一种较为经济的坝型,具有良好的受力特点和美观的外形,但施工期面临的问题较多。拱坝结构形式在施工过程中随浇筑封拱过程的变化而逐渐形成,因此拱坝的力学效应在施工阶段也是不断改变的。为了合理选择施工期封拱过程和改善坝体受力特点,在封拱过程可人为挖制的条件下,通过封拱过程的优化,从中寻求坝体应力状态最为有利的封拱过程,为后续的施工提供智力支持和正确决策。更多还原

【Abstract】 Arch dam is a kind of economical dam with good stressing feassing and beautiful shape. There are many problems needed to be resolved under construction. The structure of zrch dam gradually forms with the closure and construction process and the stressing features of arch dam changes as well.In order to find reasonable closure process anad regulate stressing features of arch dam. the advantageous closure process can be quested through closure process optimization for sake of ameliorating stresses situation. The results indicate the optimal model of closure process is partical and reasonable for future arch dam construction更多还原