拱坝坝体安全分析与加固.pdf

合肥工业大学
硕士学位论文
拱坝坝体安全分析与加固
姓名:叶义龙
申请学位级别:硕士
专业:水利水电工程
指导教师:汪莲
20100401
拱坝坝体安全分析与加固
摘要
拱坝作为一种经济性和安全性都比较优越的坝型,已成为国内外水利
工程中主要选用的坝型之一。随着筑坝经验的不断积累、设计理论的不断
完善和施工技术的不断提高,越来越多的混凝土拱坝修建于复杂的地基
上,且坝的高度不断增加。因此,关于拱坝安全性的研究受到了越来越多
的重视。文章针对拱坝的结构受力特点和应力变形特点,结合拱坝的主要
结构形式和拱梁法的基本原理,对不同的拱坝应力分析方法和稳定分析方
法进行比较;重点介绍拱坝坝肩和坝基稳定分析在拱坝设计中的应用;分
析了拱坝坝体裂缝的产生原因,并对目前国内外预防和处理拱坝裂缝的新
措施、新技术进行较全面的总结和评价;分析了影响大坝安全的主要因素,
对大坝安全监测的若干问题进行了深入的探讨,论述了大坝安全监测系统
在大坝安全监测中的重要意义。


关键词:水利工程拱坝坝体安全坝体检测安全监测
Safety Analysis and Rehabilitation of the Arch Dam
ABSTRACT
The arch dam has already e one type of selecting dam mainly using
in irrigation works at home and abroad, for the better economy and security.
As the dam experience is gradually accumulating, the design theory is
ceaseless perfecting, and the construction is improving, the more and more
concrete arch dam is being built plicated foundation, and the dam
height is in escalation. Therefore, the research about the arch dam security has
been given much more attention. And this article makes parison about
methods of stress analysis and stability analysis through design feature and
stress deformation and the structure form of arch dam and the principle of
arch-cantilever analysis. This paper is mainly studying the application about
analysis stability in the arch dam shoulder and foundation. The causes of
arisen crakes and fracture propagation are studied in this article. It also sums
up the new technology at home and abroad and evaluates the measures of
protecting the arch dam body. It analyzes the safe factor in a dam and some
problem about safety monitors and talks some details about safety observation
system. At last, it expounds the significance of safety observation system in
arch dam safety monitoring.

Keywords: Water conservancy; Arch dam; Dam safety; Monitors;
Examination measures;
插图清单

图 3-1 抗剪洞计算模型⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 22

图 5-1 数据量测、采集和管理系统流程图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 41

图 5-2 安全评价系统