二滩拱坝泄洪中孔工作弧门支承结构及预应力锚索设计研究  

Design and Research of Bearing Structure and Pre-stressed Anchor Line for Service Radial Gate at Middle Level Outlets on Ertan Arch Dam

作　　者：陈秋华[1] 杨云伟[1] 陈丽萍[1] 

机构地区：[1]成都勘测设计研究院,成都610072

出　　处：《四川水力发电》1993年第3期45-50,共6页Sichuan Hydropower

摘　　要：二滩拱坝泄洪中孔工作弧门支承结构具有承受水头高、水推力大、高速水流震动影响及检修困难等特点。为改善其应力状态,确保泄洪消能安全,设计采用预应力锚固技术。本文简要介绍工作弧门支承结构和预应力锚索设计的成果,并运用三维有限元法对其应力分布规律进行了研究,为设计提供依据。Service radial gates at middle level outlets on Ertan arch dam featrues high head bearing,high water thrust bearing,vibrating effecting by high speed flow and difficult maintenace. Pre-stressed anchor tech-nology is used to improve the stress condition for safe performance of flood release and energy dissipation. The paper briefly introduces the design and research of bearing structures and pre -stressed anchor line for the service radial gates and analyzes the stress distribution pattern by using three-diminsional finite element method to provide design considerations.

关 键 词：预应力锚索 拱坝 泄洪中孔 工作弧门 支承结构 

分 类 号：TV642.4[水利工程—水利水电工程]