Shear Strength and Consolidation Characteristics of Lateritic Soils: A Case of Asela Town, Oromia Regional State, Ethiopia

Shibiru Fekadu

doi:doi:10.11648/j.ijema.20210901.13

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Shear Strength and Consolidation Characteristics of Lateritic Soils: A Case of Asela Town, Oromia Regional State, Ethiopia

Shibiru Fekadu

Published in International Journal of Environmental Monitoring and Analysis (Volume 9, Issue 1)

Received: 30 November 2020 Accepted: 10 December 2020 Published: 17 March 2021

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Abstract

The most important engineering properties that determine the bearing capacity of soils are shear strength or ability to resist sliding along internal surfaces within a soil mass and the consolidation characteristics. Thus, in this study the shear strength and consolidation characteristics of Asela lateritic soil is studied. The shear strength parameters (i.e. Cohesion (C) and internal friction angle (Ф)) and consolidation parameters are determined using UU triaxial and 1-D odometer tests, respectively, on disturbed soil samples remolded with different densities and water contents in order to simulate the field condition. The shear strength test was done on the cylindrical samples of 38mm in diameter and a height of twice the diameter and the consolidation test were done on the samples of 75mm diameter and thickness of 20mm. In addition, the index test (specific gravity, grain size distribution, Atterberg limits and free swell tests) also conducted on air and oven-dried samples to understand the behavior and classification of the soils. The moisture content of the studied soil ranges between 17.35 – 32.51%, plasticity Index ranges between 11.8-26.4%, clay fraction ranges between 25.5-61.2, free swell ranges between 20-50% and specific gravity ranges between 2.59-2.95. The shear strength parameter, C and ɸ range from 89.63 to 161.48 Kpa and 17º-24º, respectively. The consolidation parameters: coefficient of compression ranges 0.193 to 0.581; coefficient of consolidation ranges 0.11 to 1.06 cm²/sec, coefficient of volume compressibility ranges 0.021 to 0.34m²/MN.

Published in	International Journal of Environmental Monitoring and Analysis (Volume 9, Issue 1)
DOI	10.11648/j.ijema.20210901.13
Page(s)	21-28
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Shear Strength, Consolidation, Lateritic Soils

References

[1]	Budhu, M., (2000). Soil Mechanics and Foundations. John Wiley and Sons, U.S America.
[2]	Morin. (1975). Laterite and lateritic soils and other problem soils of the tropics.
[3]	Arora, K. R., (2000). Soil mechanics and Foundation engineering Delhi, India.
[4]	Murthy V, (2001). Principles of Soil Mechanics and Foundation Engineering. New Delhi: UBS Publishers' Distributors Ltd.
[5]	Belayun B, (2012). Study some of Engineering properties of soil found in Asela. M.Sc. Thesis presented to School of graduate Studies, Addis Ababa University, Civil Engineering Department, Addis Ababa.
[6]	Blight, G. E., (1997). mechanics of residual soils, A. A Balkema, the Netherlands.
[7]	Bowles, J. E., (1978). Engineering properties of Soil and their Measurement. McGraw Hill Book Company, U.S. America.
[8]	Teferra, A., & Leikun, M., (1999). Soil Mechanics. Addis Ababa: Addis Ababa University.
[9]	AASHTO, (2004). Standard specifications for transportation materials and methods of sampling and testing. U.S America.
[10]	Lyon Association Inc. 1971. "Lateritic and Laterite Soil and Other Problematic Soils of Africa" Kumasi, Ghana.
[11]	Rahardjo. (1993). soil mechanics for unsaturated soil.
[12]	Gidigasu, M. D., (1976)."Laterite Soil Engineering: Pedogenesis and Engineering Principles”. Development in Geotechnical Engineering.
[13]	Towensend. (1969). the influence of sesquioxides.
[14]	ASTM. (2004). Special Procedures for Testing Soil and Rock for Civil Engineering purpose. U.S America.
[15]	Casagrande, A., and Fadum, R. E. 1940. Notes on soil testing for engineering purposes.

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Shibiru Fekadu. (2021). Shear Strength and Consolidation Characteristics of Lateritic Soils: A Case of Asela Town, Oromia Regional State, Ethiopia. International Journal of Environmental Monitoring and Analysis, 9(1), 21-28. https://doi.org/10.11648/j.ijema.20210901.13

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ACS Style

Shibiru Fekadu. Shear Strength and Consolidation Characteristics of Lateritic Soils: A Case of Asela Town, Oromia Regional State, Ethiopia. Int. J. Environ. Monit. Anal. 2021, 9(1), 21-28. doi: 10.11648/j.ijema.20210901.13

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AMA Style

Shibiru Fekadu. Shear Strength and Consolidation Characteristics of Lateritic Soils: A Case of Asela Town, Oromia Regional State, Ethiopia. Int J Environ Monit Anal. 2021;9(1):21-28. doi: 10.11648/j.ijema.20210901.13

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@article{10.11648/j.ijema.20210901.13,
  author = {Shibiru Fekadu},
  title = {Shear Strength and Consolidation Characteristics of Lateritic Soils: A Case of Asela Town, Oromia Regional State, Ethiopia},
  journal = {International Journal of Environmental Monitoring and Analysis},
  volume = {9},
  number = {1},
  pages = {21-28},
  doi = {10.11648/j.ijema.20210901.13},
  url = {https://doi.org/10.11648/j.ijema.20210901.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijema.20210901.13},
  abstract = {The most important engineering properties that determine the bearing capacity of soils are shear strength or ability to resist sliding along internal surfaces within a soil mass and the consolidation characteristics. Thus, in this study the shear strength and consolidation characteristics of Asela lateritic soil is studied. The shear strength parameters (i.e. Cohesion (C) and internal friction angle (Ф)) and consolidation parameters are determined using UU triaxial and 1-D odometer tests, respectively, on disturbed soil samples remolded with different densities and water contents in order to simulate the field condition. The shear strength test was done on the cylindrical samples of 38mm in diameter and a height of twice the diameter and the consolidation test were done on the samples of 75mm diameter and thickness of 20mm. In addition, the index test (specific gravity, grain size distribution, Atterberg limits and free swell tests) also conducted on air and oven-dried samples to understand the behavior and classification of the soils. The moisture content of the studied soil ranges between 17.35 – 32.51%, plasticity Index ranges between 11.8-26.4%, clay fraction ranges between 25.5-61.2, free swell ranges between 20-50% and specific gravity ranges between 2.59-2.95. The shear strength parameter, C and ɸ range from 89.63 to 161.48 Kpa and 17º-24º, respectively. The consolidation parameters: coefficient of compression ranges 0.193 to 0.581; coefficient of consolidation ranges 0.11 to 1.06 cm2/sec, coefficient of volume compressibility ranges 0.021 to 0.34m2/MN.},
 year = {2021}
}

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TY  - JOUR
T1  - Shear Strength and Consolidation Characteristics of Lateritic Soils: A Case of Asela Town, Oromia Regional State, Ethiopia
AU  - Shibiru Fekadu
Y1  - 2021/03/17
PY  - 2021
N1  - https://doi.org/10.11648/j.ijema.20210901.13
DO  - 10.11648/j.ijema.20210901.13
T2  - International Journal of Environmental Monitoring and Analysis
JF  - International Journal of Environmental Monitoring and Analysis
JO  - International Journal of Environmental Monitoring and Analysis
SP  - 21
EP  - 28
PB  - Science Publishing Group
SN  - 2328-7667
UR  - https://doi.org/10.11648/j.ijema.20210901.13
AB  - The most important engineering properties that determine the bearing capacity of soils are shear strength or ability to resist sliding along internal surfaces within a soil mass and the consolidation characteristics. Thus, in this study the shear strength and consolidation characteristics of Asela lateritic soil is studied. The shear strength parameters (i.e. Cohesion (C) and internal friction angle (Ф)) and consolidation parameters are determined using UU triaxial and 1-D odometer tests, respectively, on disturbed soil samples remolded with different densities and water contents in order to simulate the field condition. The shear strength test was done on the cylindrical samples of 38mm in diameter and a height of twice the diameter and the consolidation test were done on the samples of 75mm diameter and thickness of 20mm. In addition, the index test (specific gravity, grain size distribution, Atterberg limits and free swell tests) also conducted on air and oven-dried samples to understand the behavior and classification of the soils. The moisture content of the studied soil ranges between 17.35 – 32.51%, plasticity Index ranges between 11.8-26.4%, clay fraction ranges between 25.5-61.2, free swell ranges between 20-50% and specific gravity ranges between 2.59-2.95. The shear strength parameter, C and ɸ range from 89.63 to 161.48 Kpa and 17º-24º, respectively. The consolidation parameters: coefficient of compression ranges 0.193 to 0.581; coefficient of consolidation ranges 0.11 to 1.06 cm2/sec, coefficient of volume compressibility ranges 0.021 to 0.34m2/MN.
VL  - 9
IS  - 1
ER  -

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Author Information

Shibiru Fekadu

Department of Civil Engineering, Debre Berhan University, Debre Berhan, Ethiopia

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APA Style

Shibiru Fekadu. (2021). Shear Strength and Consolidation Characteristics of Lateritic Soils: A Case of Asela Town, Oromia Regional State, Ethiopia. International Journal of Environmental Monitoring and Analysis, 9(1), 21-28. https://doi.org/10.11648/j.ijema.20210901.13

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ACS Style

Shibiru Fekadu. Shear Strength and Consolidation Characteristics of Lateritic Soils: A Case of Asela Town, Oromia Regional State, Ethiopia. Int. J. Environ. Monit. Anal. 2021, 9(1), 21-28. doi: 10.11648/j.ijema.20210901.13

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AMA Style

Shibiru Fekadu. Shear Strength and Consolidation Characteristics of Lateritic Soils: A Case of Asela Town, Oromia Regional State, Ethiopia. Int J Environ Monit Anal. 2021;9(1):21-28. doi: 10.11648/j.ijema.20210901.13

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@article{10.11648/j.ijema.20210901.13,
  author = {Shibiru Fekadu},
  title = {Shear Strength and Consolidation Characteristics of Lateritic Soils: A Case of Asela Town, Oromia Regional State, Ethiopia},
  journal = {International Journal of Environmental Monitoring and Analysis},
  volume = {9},
  number = {1},
  pages = {21-28},
  doi = {10.11648/j.ijema.20210901.13},
  url = {https://doi.org/10.11648/j.ijema.20210901.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijema.20210901.13},
  abstract = {The most important engineering properties that determine the bearing capacity of soils are shear strength or ability to resist sliding along internal surfaces within a soil mass and the consolidation characteristics. Thus, in this study the shear strength and consolidation characteristics of Asela lateritic soil is studied. The shear strength parameters (i.e. Cohesion (C) and internal friction angle (Ф)) and consolidation parameters are determined using UU triaxial and 1-D odometer tests, respectively, on disturbed soil samples remolded with different densities and water contents in order to simulate the field condition. The shear strength test was done on the cylindrical samples of 38mm in diameter and a height of twice the diameter and the consolidation test were done on the samples of 75mm diameter and thickness of 20mm. In addition, the index test (specific gravity, grain size distribution, Atterberg limits and free swell tests) also conducted on air and oven-dried samples to understand the behavior and classification of the soils. The moisture content of the studied soil ranges between 17.35 – 32.51%, plasticity Index ranges between 11.8-26.4%, clay fraction ranges between 25.5-61.2, free swell ranges between 20-50% and specific gravity ranges between 2.59-2.95. The shear strength parameter, C and ɸ range from 89.63 to 161.48 Kpa and 17º-24º, respectively. The consolidation parameters: coefficient of compression ranges 0.193 to 0.581; coefficient of consolidation ranges 0.11 to 1.06 cm2/sec, coefficient of volume compressibility ranges 0.021 to 0.34m2/MN.},
 year = {2021}
}

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TY  - JOUR
T1  - Shear Strength and Consolidation Characteristics of Lateritic Soils: A Case of Asela Town, Oromia Regional State, Ethiopia
AU  - Shibiru Fekadu
Y1  - 2021/03/17
PY  - 2021
N1  - https://doi.org/10.11648/j.ijema.20210901.13
DO  - 10.11648/j.ijema.20210901.13
T2  - International Journal of Environmental Monitoring and Analysis
JF  - International Journal of Environmental Monitoring and Analysis
JO  - International Journal of Environmental Monitoring and Analysis
SP  - 21
EP  - 28
PB  - Science Publishing Group
SN  - 2328-7667
UR  - https://doi.org/10.11648/j.ijema.20210901.13
AB  - The most important engineering properties that determine the bearing capacity of soils are shear strength or ability to resist sliding along internal surfaces within a soil mass and the consolidation characteristics. Thus, in this study the shear strength and consolidation characteristics of Asela lateritic soil is studied. The shear strength parameters (i.e. Cohesion (C) and internal friction angle (Ф)) and consolidation parameters are determined using UU triaxial and 1-D odometer tests, respectively, on disturbed soil samples remolded with different densities and water contents in order to simulate the field condition. The shear strength test was done on the cylindrical samples of 38mm in diameter and a height of twice the diameter and the consolidation test were done on the samples of 75mm diameter and thickness of 20mm. In addition, the index test (specific gravity, grain size distribution, Atterberg limits and free swell tests) also conducted on air and oven-dried samples to understand the behavior and classification of the soils. The moisture content of the studied soil ranges between 17.35 – 32.51%, plasticity Index ranges between 11.8-26.4%, clay fraction ranges between 25.5-61.2, free swell ranges between 20-50% and specific gravity ranges between 2.59-2.95. The shear strength parameter, C and ɸ range from 89.63 to 161.48 Kpa and 17º-24º, respectively. The consolidation parameters: coefficient of compression ranges 0.193 to 0.581; coefficient of consolidation ranges 0.11 to 1.06 cm2/sec, coefficient of volume compressibility ranges 0.021 to 0.34m2/MN.
VL  - 9
IS  - 1
ER  -

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