| 扬压力问题存在的分歧及最新进展 |
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| 引用本文： | 金峰,梁通.扬压力问题存在的分歧及最新进展[J].水力发电学报,2009,28(3). |
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| 作者姓名： | 金峰 梁通 |
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| 作者单位： | 金峰,JIN Feng(清华大学水沙科学与水利水电工程国家重点实验室,北京,100084);梁通,LIANG Tong(清华大学水沙科学与水利水电工程国家重点实验室,北京100084;青海大学水电系,西宁,810016)
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| 摘 要： | 扬压力是重力坝强度和稳定计算中的重要荷载,但是,国内外学者和工程师对扬压力的认识一直存在着分歧.本文首先回顾扬压力研究发展的历史,叙述扬压力中"裂缝理论"和"孔隙理论"两个派别的基本观点,并着重陈述孔隙理论中FiUunger和Tenaghi的不同看法.然后从宏观角度分析饱和孔隙介质中水的基本力学效应.讨论广义有效应力原理.并介绍基于广义有效应力原理的对扬压力问题的最新认识.
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| 关 键 词： | 水工结构 扬压力 综述 裂隙理论 孔隙理论 广义有效应力 |
The difference in concept of uplift force and its recent progress |
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| JIN Feng,LIANG Tong.The difference in concept of uplift force and its recent progress[J].Journal of Hydroelectric Engineering,2009,28(3). |
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| Authors: | JIN Feng LIANG Tong |
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| Affiliation: | 1.State Key Laboratory of Hydroscience and Hydraulic Engineering;Tsinghua University;Beijing 100084;2.Department of Hydraulic and Electric Power Engineering;Qinghai University;Xining 810016 |
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| Abstract: | The uplift forces play an important role in the analysis of gravity dams. However,the community of engineers and scientist has had a difference in the concept of uplift force. A brief historical retrospect in the concept of uplift force is presented in this paper. The 'crack theory' and 'porous theory' are introduced and the difference in the concept between Fillunger and Terzaghi is expounded. The fundamental mechanical effects on liquid-saturated porous solids and the concept of generalized effective stre... |
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| Keywords: | hydraulic structure uplift summarisation crack theory porous theory generalized effective stress |
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