| 从拱坝实际裂缝情况来分析边缘缝和底缝的作用 |
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| 引用本文： | 朱伯芳.从拱坝实际裂缝情况来分析边缘缝和底缝的作用[J].水力发电学报,1997(2):59-66. |
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| 作者姓名： | 朱伯芳 |
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| 作者单位： | 中国水利水电科学研究院 |
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| 基金项目： | 国家自然科学基金,国家攀登计划资助 |
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| 摘 要： | 除了水平施工缝和横缝被拉开外，拱坝裂缝绝大多数垂直于岩石表面，即垂直于边缘缝和底缝，表明边缘缝和底缝并不能防止拱坝裂缝的扩展。严格控制基础温差和内外温差，优化坝体灌浆温度，是防止坝体裂缝的最有效措施。文中提出了对设置边缘缝和底缝必要性进行论证的方法。
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| 关 键 词： | 拱坝 边缘缝 底缝 |
On the Perimetral Joint and Base Joint of Arch Dams |
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| Zhu\,Bofang.On the Perimetral Joint and Base Joint of Arch Dams[J].Journal of Hydroelectric Engineering,1997(2):59-66. |
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| Authors: | Zhu\ Bofang |
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| Affiliation: | China Institute of Water Rcsources and Hydropower Research\ Beijing\ 100038 |
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| Abstract: | It is shown that most cracks in actual arch dams are perpendicular to the surface of foundation rock, i.e., most actual cracks are perpendicular to the direction of perimetral joint and base joint. So the perimetral joint and base joint can not prevent cracks in arch dams. The most effective measures to prevent cracks in arch dams are the control of maximum temperature, thermal insulation and control of temperature at the time of joint grouting. |
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| Keywords: | Arch dam\ Perimetral joint\ Base joint |
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