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| 加筋技术在高土石坝抗震加固中的应用 | |
| 引用本文： | 胡军,朱巨建. 加筋技术在高土石坝抗震加固中的应用[J]. 辽宁工程技术大学学报(自然科学版), 2009, 28(4) |
| 作者姓名： | 胡军 朱巨建 |
| 作者单位： | 辽宁科技大学资源与土木工程学院,辽宁,鞍山,114051 |
| 基金项目： | 国家电力公司科学技术基金项目项目(SP-2002-03-50-04 |
| 摘 要： | 高坝的抗震稳定分析是关系坝体安全的关键要素,以往的研究表明,土石坝在遭遇强震而发生破坏时,破坏将首先从坝项部开始,坝顶区的"鞭鞘"效应将使堆石处于不稳定状态.因此在地震区修建高土石坝应特别重视坝项区土体的稳定,采取必要的加固措施.对预应力锚筋框架梁与岩土体间的相互作用机理进行了详细的阐述,并且以糯扎渡粘土心墙坝为例,应用FLAC3D快速拉格朗日差分程序对此进行数值模拟,分析了预应力锚筋框架梁对坝体抗震稳定性的影响.结果表明预应力锚筋框架梁加固高坝可有效控制坝体的水平向和竖向永久位移,提高其抗震稳定性. |
| 关 键 词： | 锚筋 框架梁 高土石坝 |
Application of reinforcement technology on high earth-rockfill dam for seismic reinforcement |
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| HU Jun,ZHU Jujian. Application of reinforcement technology on high earth-rockfill dam for seismic reinforcement[J]. Journal of Liaoning Technical University (Natural Science Edition), 2009, 28(4) | |
| Authors: | HU Jun ZHU Jujian |
| Affiliation: | HU Jun,ZHU Jujian (School of Resources and Civil Engineering,University of Science and Technology Liaoning,Anshan 114051,China) |
| Abstract: | The stability analysis on high earth-rockfill dam under earthquake is of significance for dam safety. Various researches show that the upper part of earth-rockfill dam will be damaged under strongly earthquake loading at the early stage. This is because the rockfill in upper part is in unstable state due to whiplash effect. Therefore it is necessary to take reinforcement measures on the upper part of high earth-rockfill dams in earthquake region. This paper takes Nuozhadu earth-rock filled dam as an example... |
| Keywords: | FLAC3D |
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