THE FORMATION OF SHEAR BAND AND THE BEHAVIOR OF REINFORCED SOIL SLOPES
Salem, T., Hassan, K., Mashhour, M., AbuElella, A. (2008). THE FORMATION OF SHEAR BAND AND THE BEHAVIOR OF REINFORCED SOIL SLOPES. EKB Journal Management System, 7(7th International Conference on Civil and Architecture Engineering), 273-288. doi: 10.21608/iccae.2008.45462
Tarek N. Salem; Khaled Hassan; Mohsen Mashhour; Ahmed AbuElella. "THE FORMATION OF SHEAR BAND AND THE BEHAVIOR OF REINFORCED SOIL SLOPES". EKB Journal Management System, 7, 7th International Conference on Civil and Architecture Engineering, 2008, 273-288. doi: 10.21608/iccae.2008.45462
Salem, T., Hassan, K., Mashhour, M., AbuElella, A. (2008). 'THE FORMATION OF SHEAR BAND AND THE BEHAVIOR OF REINFORCED SOIL SLOPES', EKB Journal Management System, 7(7th International Conference on Civil and Architecture Engineering), pp. 273-288. doi: 10.21608/iccae.2008.45462
Salem, T., Hassan, K., Mashhour, M., AbuElella, A. THE FORMATION OF SHEAR BAND AND THE BEHAVIOR OF REINFORCED SOIL SLOPES. EKB Journal Management System, 2008; 7(7th International Conference on Civil and Architecture Engineering): 273-288. doi: 10.21608/iccae.2008.45462

THE FORMATION OF SHEAR BAND AND THE BEHAVIOR OF REINFORCED SOIL SLOPES

The International Conference on Civil and Architecture Engineering
Article 15, Volume 7, 7th International Conference on Civil and Architecture Engineering, May 2008, Page 273-288  XML PDF (616.95 K)
Document Type: Original Article
DOI: 10.21608/iccae.2008.45462
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Authors
Tarek N. Salem1; Khaled Hassan1; Mohsen Mashhour2; Ahmed AbuElella3
1Assoc. Prof., Dept. of Structural Eng., Faculty of Eng., Zagazig University, Zagazig, Egypt.
2Prof. Dept. of Structural Eng., Faculty of Eng., Zagazig University, Zagazig, Egypt.
3Assistant Lecturer, Dept. of Structural Eng., Faculty of Eng., Zagazig University, Zagazig, Egypt.
Abstract
The failure mechanism in slopes usually start with the formation of a shear band or in
other words, the formation of a failure zone with higher shear stresses that eventually
leads to the formation of a failure surface. The shear band shape is dependent upon
the soil type or specifically the shear strength parameters, and it is not necessarily
circular as most analysis tools assume. To prevent slope failures and allow for
steeper and higher slopes of compacted soils, layers of reinforcements are arranged
in soil slopes for stabilization to control the shear band and consequently shear
failure. The special purpose geotechnical software Plaxis is used in the numerical
analysis of slopes to identify the shear band for different soil types and to study the
behavior of reinforced soil slopes. The studied parameters included, number of soil
reinforcement layers, layer position, geogrid length, and slope angle are all presented
in an optimized form. Results showed that for cohesive soils, the shear band is deep
and can be clearly identified. On the other hand, for cohesionless soils, the shear
band is shallow and took a block-like failure shape. Results also showed that the
location of the reinforcement layers is more effective than the number of layers.
Lower layers are subjected to higher tension forces and upper layers resist lower
loads.
Keywords
Slope Stability; Numerical analysis; Shear Band; Soil Reinforcement
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