| 高土石坝震害与抗震措施评述 |
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| 引用本文： | 杨星,;刘汉龙,;余挺,;田景元.高土石坝震害与抗震措施评述[J].地震学刊,2009(5):583-590. |
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| 作者姓名： | 杨星 ;刘汉龙 ;余挺 ;田景元 |
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| 作者单位： | [1]河海大学岩土力学与堤坝工程教育部重点实验室,南京210098; [2]河海大学岩土工程科学研究所,南京210098; [3]中国水电顾问集团成都勘测设计研究院,成都610072 |
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| 基金项目： | 国家自然科学基金委员会、二滩水电开发有限公司雅砻江水电开发联合研究基金项目（50639050）、国家杰出青年科学基金项目（50825901）资助 |
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| 摘 要： | 目前,我国西部地区正建或拟建一大批高土石坝,这些高坝都位于地震高烈度区,做好抗震设计非常重要。本文总结了地震荷载作用下土石坝常见的几种破坏形式,包括地震永久变形、滑坡失稳、液化、防渗体破坏、次生破坏;针对这些破坏形式,总结了地震高烈度区高土石坝的抗震措施,包括预留超高、坡脚压重、坝顶加固、抗液化措施、防渗体处理等;提出了现阶段高土石坝抗震的计算方法和抗震措施存在的缺点和不足,并对我国今后的高土石坝抗震稳定研究提出了建议。
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| 关 键 词： | 高土石坝 破坏形式 地震荷载 抗震措施 |
Review on Seismic Disasters and Aseismatic Measures of High Earth and Rockfill Dams |
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| Institution: | YANG Xing, LIU Han-long, YU Ting, TIAN Jing-yuan (1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China; 2. Geotechnical Research Institute, Hohai University, Nanjing 210098, China ; 3. Chengdu Hydroelectric Investigation and Design Institute, CHECC, Chengdu 610072, China) |
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| Abstract: | At present, there are a large number of earth and rockfill dams which are being built or will be built in the west of China, the high intensity area of earthquakes, so the aseismatic measures are very important for those dams. In this paper, the main failure modes of earth and rockfill dams due to earthquake were briefly reviewed, including earthquake-induced permanent deformation, landslide failure, liquefaction, anti-seepage damage, and secondary damage. According to those failure modes, the aseismatic measures of high earth and rockfill clams built in meizoseismal areas were summed up, including the reserved freeboard, toe weight, crest reinforcement, anti-liquefaction measures, seepage treatment. Then the merits and faults of current calculating methods and aseismatic measures of the high earth and rockfill dams were pointed out; at last, suggestions were put forward for the seismic stability study of high earth and rockfill dams in future. |
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| Keywords: | high earth and rockfill dams failure modes seismic loading aseismatic measures |
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