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沙牌拱坝结构开裂及破坏机理研究
引用本文:张林,陈建康,陈新,胡成秋.沙牌拱坝结构开裂及破坏机理研究[J].水电站设计,2003,19(4):16-19.
作者姓名:张林  陈建康  陈新  胡成秋
作者单位:四川大学,水电学院,四川,成都,610065
基金项目:九五"国家科技攻关项目(96-220-02-01-03)
摘    要:本课题是“九五”国家重点科技攻关项目——高碾压混凝土拱坝分缝与建坝材料研究中的一个研究子题,该子题针对沙牌碾压混凝土拱坝开裂问题进行研究。研究采用物理模型与数学模型相结合的方法,在物理模型中运用断裂力学理论模拟诱导缝的开裂相似,并采用光纤传感检测技术监测大坝及诱导缝的开裂破坏,获得了大坝的应力、变位及超载破坏过程和破坏形态。

关 键 词:沙牌水电站  碾压砼拱坝  开裂  结构模型试验  光纤传感  断裂力学  有限元
文章编号:1003-9805(2003)04-0016-04
修稿时间:2003年10月8日

Study on Shapai Arch Dam Structural Cracking and Failure Mechanism
ZHANG Lin,CHEN Jian-kang,CHEN Xin,HU Cheng-qiu.Study on Shapai Arch Dam Structural Cracking and Failure Mechanism[J].Design of Hydroelectric Power Station,2003,19(4):16-19.
Authors:ZHANG Lin  CHEN Jian-kang  CHEN Xin  HU Cheng-qiu
Abstract:This subject is a sub-item of one of the national key scientific & technical problems scheduled to be tackled in the state ninth five year plan--study on high RCC arch dam joint forming & RCC Materials for the dam construction.The sub-item studied cracking of Shapai RCC arch dam.Physical model together with mathematic model were used in the study.In the physical model,theory of fracture mechanics was used to simulate cracking similarity of the inducing joints and optical fiber sensing technique was used to monitor cracking & failure of the dam & the inducing joints.Thus,the dam stress,deflection,failure process & pattern due to over loading were achieved.
Keywords:roller compacted concrete arch dam  cracking  failure mechanism  structural model test  optical fiber sensing  fracture mechanics  finite element analysis  Shapai Hydroelectric Power Station
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