Investigation of the stability of a fly ash pond facility using 2D and 3D slope stability analysis

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
L. C. de Kooker, M. Ferentinou, I. Musonda, K. Esmaeili
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引用次数: 0

Abstract

A numerical investigation of the effect of pore pressure regime on the safety factor and the critical failure mechanism is presented for fly ash storage facility. Pore pressures’ measurements from standpipe piezometers and pore pressure estimated from seepage analysis are used to compare the factor of safety for a fly ash slope. This was applied for considering static and seismic scenarios. A probabilistic approach was applied to account for the uncertainties resulting from the limited data available and support a qualitative risk assessment evaluation. Slope stability analysis is conducted in two and three dimensions, adopting the limit equilibrium analysis approach, and also a finite element seepage analysis, to assess the stability of the slope. The two-dimensional cross-sections were extruded to three-dimensional models to estimate the factor of safety and associated shear failure. The results from the performed analysis suggest an increase in safety factor values of 5%.

Abstract Image

利用二维和三维斜坡稳定性分析调查粉煤灰池设施的稳定性
对粉煤灰贮存设施的孔隙压力机制对安全系数和临界破坏机制的影响进行了数值研究。利用立管压力计测量的孔隙压力和渗流分析估算的孔隙压力来比较粉煤灰斜坡的安全系数。该方法适用于静态和地震情况。采用概率方法来考虑因可用数据有限而产生的不确定性,并支持定性风险评估评价。采用极限平衡分析法和有限元渗流分析法对斜坡稳定性进行二维和三维分析,以评估斜坡的稳定性。二维横截面被挤压成三维模型,以估算安全系数和相关的剪切破坏。分析结果表明,安全系数值提高了 5%。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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