水利水运工程学报
水利水運工程學報
수이수운공정학보
HYDRO-SCIENCE AND ENGINEERING
2010年
1期
1-8
,共8页
心墙堆石坝%地震响应%极限抗震能力%抗震措施
心牆堆石壩%地震響應%極限抗震能力%抗震措施
심장퇴석패%지진향응%겁한항진능력%항진조시
core rockfill dam%earthquake dynamic response%limit aseismic capacity%aseismic measure
虽然土石坝具有较好的抗震性能,而且一些高土石坝还经过了强震考验,但土石坝的极限抗震能力仍是人们关心的问题.数值模型方法是预测大坝地震动力反应和进行地震安全评价的有效工具.本文采用三维有限元方法分析了某高心墙堆石坝的地震动力特性,探讨了大坝地震破坏评价标准,并在此基础上开展了大坝极限抗震能力研究.根据大坝动力响应的特点,分析了可行的抗震工程措施.
雖然土石壩具有較好的抗震性能,而且一些高土石壩還經過瞭彊震攷驗,但土石壩的極限抗震能力仍是人們關心的問題.數值模型方法是預測大壩地震動力反應和進行地震安全評價的有效工具.本文採用三維有限元方法分析瞭某高心牆堆石壩的地震動力特性,探討瞭大壩地震破壞評價標準,併在此基礎上開展瞭大壩極限抗震能力研究.根據大壩動力響應的特點,分析瞭可行的抗震工程措施.
수연토석패구유교호적항진성능,이차일사고토석패환경과료강진고험,단토석패적겁한항진능력잉시인문관심적문제.수치모형방법시예측대패지진동력반응화진행지진안전평개적유효공구.본문채용삼유유한원방법분석료모고심장퇴석패적지진동력특성,탐토료대패지진파배평개표준,병재차기출상개전료대패겁한항진능력연구.근거대패동력향응적특점,분석료가행적항진공정조시.
Earthquake disaster avoiding is very important for the safety of earth-rockfill dams. It is accepted that rockfill dams are with nicer aseismic behavior. Although some high rockfill dams were tested by strong earthquakes,the limit aseismic capacity of a rockfill dam is still concerned. Numerical model is a useful method to estimate the dynamic response and to analyze the security of a dam during earthquake. 3-D FEM method is used to analyze the seismic dynamic behavior of a high earth core rockfill dam. The earthquake destructive criterion of the dam is investigated,and its limit aseismic capacity is studied. According to the characteristic of dynamic response of the dam,viable aseismic measures are discussed.
