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首页> 外文期刊>Engenharia Agrícola >PERFORMANCE OF ANALYSIS METHODS OF SLOPE STABILITY FOR DIFFERENT GEOTECHNICAL CLASSES SOIL ON EARTH DAMS
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PERFORMANCE OF ANALYSIS METHODS OF SLOPE STABILITY FOR DIFFERENT GEOTECHNICAL CLASSES SOIL ON EARTH DAMS

机译：土坝不同地岩石类土壤边坡稳定性分析方法的性能

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摘要

The aim of this study was to evaluate the performance of less accurate analysis methods of slope stability, in order to reduce the number of operations used by the most accurate methods available in the literature. The study evaluated four methods for calculating slope stability. Fellenius ( FELLENIUS, 1936 ), Bishop ( BISHOP, 1955 ), Simplified Bishop ( BISHOP & MORGENSTERN, 1960 ) and Simplified Janbu ( JANBU, 1973 ) were compared with the Spencer method ( SPENCER, 1967 ), which is considered an accurate method for calculating the factor of safety ( F S ). The procedure was performed in scenarios with different soil groups according to the Unified Soil Classification System (USCS) ( ASTM 2011 ), heights and slope inclinations, and under conditions of reservoir subject to fast and slow emptying. Thus, comparative analyses were made using the correlation index a?? r a??, the accuracy index a?? d a?? ( WILLMOTT et al, 1985 ) and the performance index a?? c a?? ( CAMARGO & SENTELHAS, 1997 ). The methods that had optimal performance for the analyzed conditions were the Simplified Bishop, the Simplified Janbu and the Bishop methods; the Simplified Bishop method obtained a correlation coefficient of 99%. Thus, they can be used as alternative methods to replace the Spencer method in the analysis of slope stability on earth dams.
机译：本研究的目的是评估斜坡稳定性较低的分析方法的性能，以减少文献中最准确的方法所使用的运营数量。该研究评估了四种计算斜率稳定性的方法。 Bishop（Bishop，1955年），简体主教（Bishop＆Morgenstern，1960）和简体的Janbu（Janbu，1973），与斯宾塞方法（斯宾塞，1967年）进行了比较，这是一种准确的方法计算安全因子（FS）。根据统一的土壤分类系统（ASTM 2011），高度和坡度倾向，以及水库条件，在水库的条件下，在不同土壤组的情况下进行该程序，并在快速排放的水库条件下。因此，使用相关指数a ??的比较分析r a ??，准确性指数a ?? d a ?? （Willmott等，1985）和性能指数a ?? c a ?? （Camargo＆Sentelhas，1997）。对分析条件具有最佳性能的方法是简体主教，简体的JanBu和主教方法;简化的主题方法获得了99％的相关系数。因此，它们可以用作替代方法来取代施工方法在分析地球坝上的边坡稳定性中。

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