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Shear Strength
This chapter considers that why soil strength is measured in terms of its shear strength when other materials, such as metals and masonry materials like concrete and stone, are measured in terms of direct tensile or compressive strength. The concept of soil shear strength was developed by Coulomb and then Mohr who suggested that the shear strength of soil could be characterised by a combination of a fixed cohesive component (c), and a frictional component with a fixed angle of shearing resistance (Φ). Since shear strength depends on the effective stresses, transmitted by inter‐particle contacts, and these remain unchanged irrespective of the applied confining pressure, it follows that undrained shear strength will also be independent of confining pressure. Attempts have been made to correlate the unconfined compressive strength or the undrained shear strength of clays with the results of standard penetration tests, with varying degrees of success.
Shear Strength
This chapter considers that why soil strength is measured in terms of its shear strength when other materials, such as metals and masonry materials like concrete and stone, are measured in terms of direct tensile or compressive strength. The concept of soil shear strength was developed by Coulomb and then Mohr who suggested that the shear strength of soil could be characterised by a combination of a fixed cohesive component (c), and a frictional component with a fixed angle of shearing resistance (Φ). Since shear strength depends on the effective stresses, transmitted by inter‐particle contacts, and these remain unchanged irrespective of the applied confining pressure, it follows that undrained shear strength will also be independent of confining pressure. Attempts have been made to correlate the unconfined compressive strength or the undrained shear strength of clays with the results of standard penetration tests, with varying degrees of success.
Shear Strength
Carter, Michael (author) / Bentley, Stephen P. (author)
Soil Properties and their Correlations ; 107-137
2016-09-20
31 pages
Article/Chapter (Book)
Electronic Resource
English
| Springer Verlag | 2017
| Wiley | 2023
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| NTIS | 1973
| ASCE | 2021