| 东北几座混凝土坝老化与加固效果分析 |
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| 引用本文： | 宋恩来.东北几座混凝土坝老化与加固效果分析[J].大坝与安全,2006(1):44-49. |
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| 作者姓名： | 宋恩来 |
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| 作者单位： | 国家电网公司东北公司,沈阳,110006 |
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| 摘 要： | 寒冷地区混凝土坝老化主要表现在溶蚀、冻融和冻胀破坏、冲刷破坏等，其碳化深度不大。溶蚀、冻融和冻胀破坏等均与渗漏有关。工程实践表明，为防止或延缓混凝土坝的老化，在外包混凝土的同时必须采取防渗和排水措施。
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| 关 键 词： | 混凝土坝老化 溶蚀 冻融与冻胀 外包混凝土 防渗和排水 |
| 文章编号： | 1671-1092（2006）01-0044-06 |
| 收稿时间： | 2004-11-15 |
| 修稿时间： | 2006-02-20 |
Aging on several concrete dams in northeastern China and reinforcement analysis |
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| SONG En-lai.Aging on several concrete dams in northeastern China and reinforcement analysis[J].Large Dam & Safety,2006(1):44-49. |
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| Authors: | SONG En-lai |
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| Affiliation: | SONG En-lai//Northeast China Grid Company Limited |
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| Abstract: | The aging of concrete dam located on the regions with cold climate is characterized by resorption, destroyed by freezethaw and frozen-heave, scouring and etc., but the carbonized depth is tow, The freeze-thaw and frozen-heave destruction mainly result from seepage. The practice has shown that the dam body. should be covered by concrete outside followed by the steps of antiseepage and drainage in order to prevent and prolong concrete dam aging. |
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| Keywords: | aging of concrete dam resorption freeze-thaw and frozen-heave covered concrete anti-seepage and drainage |
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