摘要
文中针对高寒地区超高坝底孔闸门常规山型水封存在的问题,提出了一种新型充气山型水封结构;采用材料分区布置,考虑橡胶材料的超弹性、不可压缩性、大变形等特点,对水封在最不利工况下止水,进行了三重非线性有限元数值仿真;在橡胶材料应力不超过其容许值前提下,对充气袋断面形式进行优化,得出最佳断面形式。研究表明,该水封能解决高寒地区闸门存在的止水失效问题,为实际工程设计提供参考。
Aiming at the problems existing in the conventional mountain type water seal of the bottom gate of super high dam in alpine area,a new inflatable mountain type water seal structure is proposed.Considering the characteristics of rubber material,such as superelasticity,incompressibility and large deformation,the water seal is sealed under the most unfavorable conditions by using the material partition layout,and the triple nonlinear finite element numerical simulation is carried out.Under the premise that the rubber material stress does not exceed its allowable value,the section form of the inflatable bag is optimized and the best section form is obtained.The research shows that the water seal can solve the problem of water stop failure of gate in alpine area,and provide reference for practical engineering design.
出处
《东北水利水电》
2022年第7期32-37,72,共7页
Water Resources & Hydropower of Northeast China
关键词
闸门
高寒地区
充气山型水封
超高水头
非线性
优化
gate
alpine area
inflatable mountain type water seal
super-high head
nonlinear
optimization
