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san wan shui li shu niu gong cheng hun ning tu lie feng yan jiu
Author(s): 
Pages: 46-48
Year: Issue:  2
Journal: Water Resources & Hydropower of Northeast China

Keyword:  三湾水利枢纽混凝土裂缝温度应力化学灌浆;
Abstract: 通过对三湾水利枢纽工程所出现的混凝土裂缝成因进行研究分析,认为主要是由于内外温差引起的温度应力、地基岩石卸荷松弛变形和固结灌浆抬动等多种因素所导致的裂缝;对裂缝的处理给出了具体实施方案,采用化学灌浆并凿槽配置限裂钢筋;对今后该工程混凝土施工的防裂措施进行了讨论总结,要从结构设计、原材料选用、施工过程温度控制、后期混凝土养护等多方面共同工作,以避免或减少裂缝的发生.
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