Open AccessFactors Influencing the Shear Strength of Clays: A review
Author(s) -
Ahmed Raad Al-Adhadh,
Basim Jabbar Abbas,
Atheer Muhammed Ali
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1090/1/012009
Subject(s) - consolidation (business) , geotechnical engineering , void ratio , shearing (physics) , porosity , geology , soil water , montmorillonite , water content , clay minerals , materials science , soil science , mineralogy , composite material , accounting , business
The shearing strength of clays is greatly affected by some factors. These factors are including the composition of soil minerals, the initial moisture content, the degree of saturation, the over-consolidation ratio, the initial void ratio, the porosity, the loading conditions (drained conditions versus undrained conditions), the pore fluid composition, weathering, the number of freeze-thaw cycles the soil is subjected as well as any stabilization techniques used on the clay mass. In this study, the effect of three factors (mineralogy, over-consolidation ratio, and drained versus undrained loading) are examined through the available technical literature. The conclusions made in the literature show that (a) the presence of montmorillonite in the soil mass can affect the shear strength in a more pronounced manner than other clay minerals, (b) the higher the over-consolidation ratio (OCR), the larger the shearing resistance of a soil mass, (c) soils loaded under drained conditions tend to exhibit higher strengths than those loaded under undrained conditions, (d) there are many methods to raise the un-drained shearing strength of the soil mass.