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Application of prestressed anchorage in rehabilitation of dam bedrock fault crack

WANG Yan-hai and ZUO Deng-fa   

  • Online:2008-12-28 Published:2008-12-28

预应力锚固在大坝基岩断层裂缝除险加固中的应用

王砚海1,左登发2   

  1. 1.安徽省响洪甸水库管理处,安徽六安 237335;2.合肥工业大学土木与水利工程学院,安徽合肥 230009

Abstract: A lot of dams in China were built during 1950~1970. To concrete dams, the bedrock fault crack is a big threat to dam safety. In the paper, successful application of prestressed anchorage, anti-slide gravity pier and high pressure consolidation grouting in dam bedrock fault crack treatment was introduced. As well, the constitution of prestressed anchorage and construction process were illustrated.

摘要: 我国很多大坝为二十世纪50、60 年代兴建的,三类坝情况十分严重。在混凝土坝中,基岩断层裂缝对结构安全构成严重威胁,工程实例说明,预应力锚固和止滑重力墩以及高压固结灌浆不失为基岩断层裂缝补强加固的有效措施。本文简述了预应力锚固的施工方法和程序。