| 混凝土堆石坝面板变形特性的有限元数值模拟 |
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| 引用本文： | 石月顺,王永兴,杨铁钢,张军.混凝土堆石坝面板变形特性的有限元数值模拟[J].科学技术与工程,2009,9(17). |
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| 作者姓名： | 石月顺 王永兴 杨铁钢 张军 |
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| 作者单位： | 1. 武警水电部队一总队一支队,丹东,118216
2. 辽宁蒲石河抽水蓄能有限公司,丹东,118216 |
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| 摘 要： | 根据蒲石河凝土面板堆石坝的实际情况建立三维简化模型,运用大型有限元计算分析软件ANSYS进行三维非线性有限元计算,分析了面板堆石坝的应力应变特点.模拟了在不同蓄水位条件下,混凝土面板垂直缝和周边缝的变形过程.建立了混凝土面板和堆石体之间、混凝土面板与面板之间、混凝土面板与趾板之间的接触模型,采用ANSYS提供的接触单元模拟.数值模拟结果表明:在靠近河谷附近,垂直缝为闭合状态;在靠近岸坡附近,垂直缝为张开状态,其最大开度为2 mm,周边缝在河谷附近开度最大,往两岸逐渐减小,最大开度为17.9 mm.有限元数值模拟结果为堆石体施工期变形预留和周边缝、垂直缝的接缝材料选取提供了理论依据.
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| 关 键 词： | 混凝土堆石坝 垂直缝 周边缝 有限元 变形 |
Numerical Simulation of Deformation Behavior of Concrete-faced Rockfill Dam |
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| WANG Yong-xin,YANG Tie-gang,SHI Yue-shun,Zhang Jun.Numerical Simulation of Deformation Behavior of Concrete-faced Rockfill Dam[J].Science Technology and Engineering,2009,9(17). |
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| Authors: | WANG Yong-xin YANG Tie-gang SHI Yue-shun Zhang Jun |
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| Institution: | Pushihe project department;the first Corps of The Chinese People's Armed police Forces;Dandong 118216;P.R.China;Liaoning Pushihe pumped storage company limited 1;P.R.China |
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| Abstract: | The physical and mechanical characteristics of rock-filled dam are analyzed,and the element type and contact element type are determined.According to experiment data and research results,the Duncan-Chang non-linear constitutive model is selected to denote the stress strain character of rockfill,and the rockfill material parameter is also determined.The incremental construction process of rockfill dams was numerically simulated,using "birth and death" element supplied by ANSYS.The numerical simulation result... |
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| Keywords: | concrete-faced rockfill dam vertical joints peripheral joints finite element method deformationy concrete face and concrete fac esults indicate that:in the nearby r pened The maximumopening is2 ening which is17 9 mm Finite el |
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