Correlation Between Shear Strength of Soils and Water Content Ratio as a Substitute for Liquidity Index

2020 ◽  
pp. 299-306 ◽  
Author(s):  
Harshdeep Singh ◽  
Ashok Kumar Gupta
Keyword(s):  
Shear Strength ◽  
Water Content ◽  
Liquidity Index ◽  
Content Ratio

Water Content Ratio: An Effective Substitute for Liquidity Index for Prediction of Shear Strength of Clays

2017 ◽  
Vol 35 (4) ◽  
pp. 1577-1586 ◽  
Author(s):  
Beshy Kuriakose ◽  
Benny Mathews Abraham ◽  
A. Sridharan ◽  
Babu T. Jose
Keyword(s):  
Shear Strength ◽  
Water Content ◽  
Liquidity Index ◽  
Content Ratio

Relationship between measured plastic limit and plastic limit estimated from undrained shear strength, water content ratio and liquidity index

Clay Minerals ◽  
2017 ◽  
Vol 52 (4) ◽  
pp. 509-519 ◽  
Author(s):  
Giovanni Spagnoli ◽  
Martin Feinendegen
Keyword(s):  
Shear Strength ◽  
Water Content ◽  
Human Error ◽  
Undrained Shear Strength ◽  
Plastic Limit ◽  
Limit Values ◽  
Liquidity Index ◽  
Content Ratio ◽  
Exponential Trend ◽  
Undrained Shear

AbstractThe detection of the plastic limit of clays is subject to human error. Several attempts have been made to correlate across studies the geotechnical properties of fine-grained soils (water content, liquidity index, shear strength, etc.). Based on the premise that the liquidity index and water content ratio can be correlated directly, an alternative method to obtain indirectly the plastic limit is suggested here. The present study investigated 40 natural clayey samples of various mineralogies and origins and other publicly available data, where Atterberg limits and undrained shear strength values obtained with the vane shear tests were given. The liquidity index and water-content ratio correlate very well for defined undrained shear strength values of the clays. Solving the liquidity index equation for the plastic limit, estimated plastic limit values obtained by the liquidity index/water-content ratio relationship were compared with laboratory plastic-limit values. Preliminary results based on 62 values show an exponential trend with a multiple regression coefficient of 0.79. The data need to be confirmed on a larger database, however.

Characterization of Shear Strength and Interface Friction of Organic Soil

2020 ◽  
Vol 857 ◽  
pp. 203-211
Author(s):  
Majid Hamed ◽  
Waleed S. Sidik ◽  
Hanifi Canakci ◽  
Fatih Celik ◽  
Romel N. Georgees
Keyword(s):  
Shear Stress ◽  
Shear Strength ◽  
Internal Friction ◽  
Moisture Content ◽  
Water Content ◽  
Friction Angle ◽  
Structural Materials ◽  
Organic Soil ◽  
Internal Friction Angle ◽  
Interface Friction

This study was undertaken to investigate some specific problems that limit a safe design and construction of structures on problematic soils. An experimental study was carried out to examine the influence of loading rate and moisture content on shear strength of organic soil. Influece of moisture content on interface friction between organic soil and structural materials was also attempted. A commonly used soil in Iraq was prepared at varying moisture contents of 39%, 57% and 75%. The experimental results showed that the increase in water content will decrease the shear stress and the internal friction angle. An increase of the shearing rate was found to decrease the shear stress and internal friction angle for all percetanges of water contents. Further, direct shear tests were carried out to detect the interface shear stress behavior between organic soil and structural materials. The results revealed that the increase in water content was shown to have significant negetavie effects on the interface internal friction and angle shear strength.

scholarly journals Shear strength characteristics of Jerash expansive soil

2021 ◽  
Vol 3 (2) ◽  
pp. 74-80
Author(s):  
Talal Masoud
Keyword(s):  
Shear Strength ◽  
Internal Friction ◽  
Water Content ◽  
Direct Shear Test ◽  
Shear Test ◽  
Expansive Soil ◽  
Content Increase ◽  
Direct Shear ◽  
Initial Water ◽  
Angle Of Internal Friction

The results of the direct shear test on Jerash expansive soil show the effect of the initial water content on the cohesion (c) and on the angel of internal friction ( ) [shear strength parameters].it show that, as the initial water increase, the cohesion (c) of Jerash expansive soil also increase up to the shrinkage limit, after that increase of water even small amount, decrease the cohesion of the soil. On the other hand, the results of direct shear test show also  that as the water content increase, the angle of internal friction ( )remain unchanged up to shrinkage limit , any increase of water cause a large decrease on the angle of internal friction of Jerash expansive soil.

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