| 重力坝深层抗滑稳定的非线性边界元分析 |
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| 引用本文： | 朱先奎.重力坝深层抗滑稳定的非线性边界元分析[J].武汉大学学报(工学版),1993(1). |
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| 作者姓名： | 朱先奎 |
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| 作者单位： | 清华大学工程力学系 |
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| 摘 要： | 针对实际工程中的复杂地基问题,本文以间接边界元法——不连续位移法和不连续应力法为基础,按增量变刚度法建立了软弱夹层问题的非线性边界元法,其中软弱夹层用非线性节理单元模拟,然后用这个方法分析了重力坝深层抗滑稳定问题并给出了算例。算例表明该方法应用方便灵活、工作量小、能节省机时减少计算费用,而且能获得令人满意的安全度指标和位移应力的变化规律,是分析这类问题的一种较合理的计算方法。
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| 关 键 词： | 重力坝 边界元 软弱夹层 抗滑稳定 |
A Non-linear Boundary Element Analysis of the Slide-proof Stability of Deep Layers in Gravity Dam Foundations |
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| Zhu Xiankui.A Non-linear Boundary Element Analysis of the Slide-proof Stability of Deep Layers in Gravity Dam Foundations[J].Engineering Journal of Wuhan University,1993(1). |
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| Authors: | Zhu Xiankui |
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| Affiliation: | Zhu Xiankui |
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| Abstract: | In view of complicated foundation problems in engineerings, this paper, based on indirect BEM-discontinuous displacement method and discontinuous stress method, estabilishes non-linear BEM for the problems of weak intercalated bed modeled by joint elements with cohesion and friction by using the method of incremental varying stiffnesses. Then the BEM is applied here to analyzing the slide-proof stability of deep layers in the gravity dam foundation. The result shows the method is a rational numer-ical one for such problems. |
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| Keywords: | gravity dam boundary element weak intercalated bed slide-proof stability |
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