PERFORMANCE OF ANALYSIS METHODS OF SLOPE STABILITY FOR DIFFERENT GEOTECHNICAL CLASSES SOIL ON EARTH DAMS
ABSTRACT 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...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Engenharia Agrícola
2016-12-01
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| Series: | Engenharia Agrícola |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601027&tlng=en |
| _version_ | 1818987515742257152 |
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| author | Tonismar Dos S. Pereira Adroaldo D. Robaina Marcia X. Peiter Fabiano De V. A. Braga Ricardo B. Rosso |
| author_facet | Tonismar Dos S. Pereira Adroaldo D. Robaina Marcia X. Peiter Fabiano De V. A. Braga Ricardo B. Rosso |
| author_sort | Tonismar Dos S. Pereira |
| collection | DOAJ |
| description | ABSTRACT 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 (FS). 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 “r”, the accuracy index “d” (WILLMOTT et al, 1985) and the performance index “c” (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. |
| first_indexed | 2024-12-20T19:07:55Z |
| format | Article |
| id | doaj.art-cb2ee935192d4ba5aec34b7b582b4f68 |
| institution | Directory Open Access Journal |
| issn | 0100-6916 |
| language | English |
| last_indexed | 2024-12-20T19:07:55Z |
| publishDate | 2016-12-01 |
| publisher | Sociedade Brasileira de Engenharia Agrícola |
| record_format | Article |
| series | Engenharia Agrícola |
| spelling | doaj.art-cb2ee935192d4ba5aec34b7b582b4f682022-12-21T19:29:16ZengSociedade Brasileira de Engenharia AgrícolaEngenharia Agrícola0100-69162016-12-013661027103610.1590/1809-4430-eng.agric.v36n6p1027-1036/2016PERFORMANCE OF ANALYSIS METHODS OF SLOPE STABILITY FOR DIFFERENT GEOTECHNICAL CLASSES SOIL ON EARTH DAMSTonismar Dos S. PereiraAdroaldo D. RobainaMarcia X. PeiterFabiano De V. A. BragaRicardo B. RossoABSTRACT 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 (FS). 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 “r”, the accuracy index “d” (WILLMOTT et al, 1985) and the performance index “c” (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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601027&tlng=enFelleniusBishopSimplified BishopSimplified JanbuSpencer |
| spellingShingle | Tonismar Dos S. Pereira Adroaldo D. Robaina Marcia X. Peiter Fabiano De V. A. Braga Ricardo B. Rosso PERFORMANCE OF ANALYSIS METHODS OF SLOPE STABILITY FOR DIFFERENT GEOTECHNICAL CLASSES SOIL ON EARTH DAMS Engenharia Agrícola Fellenius Bishop Simplified Bishop Simplified Janbu Spencer |
| title | PERFORMANCE OF ANALYSIS METHODS OF SLOPE STABILITY FOR DIFFERENT GEOTECHNICAL CLASSES SOIL ON EARTH DAMS |
| title_full | PERFORMANCE OF ANALYSIS METHODS OF SLOPE STABILITY FOR DIFFERENT GEOTECHNICAL CLASSES SOIL ON EARTH DAMS |
| title_fullStr | PERFORMANCE OF ANALYSIS METHODS OF SLOPE STABILITY FOR DIFFERENT GEOTECHNICAL CLASSES SOIL ON EARTH DAMS |
| title_full_unstemmed | PERFORMANCE OF ANALYSIS METHODS OF SLOPE STABILITY FOR DIFFERENT GEOTECHNICAL CLASSES SOIL ON EARTH DAMS |
| title_short | PERFORMANCE OF ANALYSIS METHODS OF SLOPE STABILITY FOR DIFFERENT GEOTECHNICAL CLASSES SOIL ON EARTH DAMS |
| title_sort | performance of analysis methods of slope stability for different geotechnical classes soil on earth dams |
| topic | Fellenius Bishop Simplified Bishop Simplified Janbu Spencer |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601027&tlng=en |
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