| 张冲,王仁坤,汤雪娟.溪洛渡特高拱坝蓄水初期工作状态评价[J].水利学报,2016,47(1):85-93 |
| 溪洛渡特高拱坝蓄水初期工作状态评价 |
| Safety evaluation of Xiluodu ultra-high arch dam during the initial impoundment period |
| 投稿时间：2015-04-13 |
| DOI：10.13243/j.cnki.slxb.20150404 |
| 中文关键词: 特高拱坝 监测反馈 数值仿真 安全评价 |
| 英文关键词: ultra-high arch dam prototype monitoring and feedback numerical simulation safety evaluation |
| 基金项目: |
|
| 摘要点击次数: 3183 |
| 全文下载次数: 55 |
| 中文摘要: |
| 本文对溪洛渡拱坝蓄水阶段原型监测成果进行归纳总结,论术了监测数据的同步性、连续性、规律性和收敛性特征,初步评价了大坝的运行状态,基于数值仿真反馈分析,研究了大坝受力变形特性的机理,重点阐述了拱坝库盆沉降、上部谷幅收缩效应,分析了坝踵压应力的合理性。结果表明：溪洛渡拱坝初期蓄水期拱坝变形与水库水位变化过程一致,连续变化且符合客观规律,整体时效变形呈现收敛态势;由于溪洛渡特殊的地质条件,库盆压力对大坝变形影响较大,但不影响整体安全稳定;拱坝应力分布良好,坝肩推力在坝基内扩散明显,处于可控状态。综合分析认为,溪洛渡拱坝蓄水过程安全可靠。 |
| 英文摘要: |
| To study the safety evaluation of Xiluodu ultra-high arch dam during the initial impoundment period, four qualitative criterions was proposed based on prototype monitoring analysis. Comprehensive analysis was integrated to establish the method and quantitative criterions of safety evaluation, including prototype monitoring and numerical simulation. In this study, the proposed method was used to Xiluodu ultra-high arch dam, and revealed the deformation mechanism of dam structure, reservoir foundation deformation effect, valley amplitude deformation and dam-heel compression mechanism. In conclusion, the performance of Xiluodu ultra-high arch dam is safe and under control during the process of water storing. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|