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有限元法分析边坡稳定及工程实例 被引量:10

The Analysis of Slope Stability With the Method of FEM and Engineering Example
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摘要 用有限元法分析边坡稳定性,能够对坡体内的应力分布、应变及变形分布、塑性区分布等规律较为准确的量化表征,还可以得出滑动面的大致位置和安全系数。本文对强度折减法的失稳判据进行评价,得出以弹塑性解是否收敛为标准更有说服力。对某水库近坝库岸边坡进行分析,并将其与传统方法所得的边坡安全系数相比,证实其工程应用的可靠性,能够在实际工程中加以应用。 Through the results from the FEM for slope stability analysis, the distributing rule of stress, strain and deformation, plastic zone in the slope can be quantified, also the approximate position of gliding surface and safety factor can be gained. In this paper the criteria of evaluating slope stability based on strength reduction FEM are evaluated. The conclusion is that the criterion based on the convergence of solution is more reasonable. The bank slope stability of one reservoir is analyzed. Compared with the safety factor on traditional method, the reliability of strength reduction FEM is conformed and can be applied to practice engineering.
机构地区 西安理工大学
出处 《西北水力发电》 2006年第3期87-90,共4页 Journal of Northwest Hydroelectric Power
关键词 边坡稳定 弹塑性有限元 安全系数 强度折减 slope stability elasticity and plasticity FEM safety factor strength reduction
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