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小湾非整体拱坝的抗震稳定性数值仿真试验研究
Experiment Study on Seismic Resistance Stability of Xiaowan Arch Dam
【摘要】 针对高拱坝抗震稳定性分析中坝体收缩横缝、坝肩节理裂隙岩体的接触非线性问题,本文研制开发了三维动态接触单元和用于动力非线性分析的修正中心差分法程序,对在建的小湾300m级高拱坝—坝基体系进行了三维动力非线性数值仿真分析。通过数值分析,研究了小湾高拱坝非线性特性及其对坝体抗震稳定性的影响,进而对高拱坝抗震稳定性有了进一步的认识。
【Abstract】 Pointing at the outstanding problems such as the lateral contraction joint of the dam body and the joint crack rock of the dam abutment in seismic stability analysis of the high arch dam, the 3D dynamical constraint joint element developed by us is used to analyze the dam foundation system of Xiaowan High Arch Dam building now. Some advanced knowledges are given through the numerical analysis in this paper.
【关键词】 高拱坝;
抗震稳定性;
三维非线性;
动接触单元;
【Key words】 high arch dam; seismic resistance stability; 3D nonlinear; dynamical constraint joint element;
【Key words】 high arch dam; seismic resistance stability; 3D nonlinear; dynamical constraint joint element;
【基金】 四川省重点科技攻关项目(02SG023-041);西安建筑科技大学青年基金资助项目。
- 【文献出处】 水利与建筑工程学报 ,Jorunal of Water Resources and Architectural Engingeering , 编辑部邮箱 ,2003年04期
- 【分类号】TV642.4
- 【被引频次】10
- 【下载频次】165