Open Access Open Access  Restricted Access Subscription or Fee Access

Determination of Bearing Strength Characteristics of Fine and Coarse Cohesive Soils from its Index Properties

Edmund Nana Asare, Gideon Boateng, Albert Kafui Klu, Isaac Ofori Ampong

Abstract


The variation in geology, cost and complexity in the preparation and testing for strength characteristics of soils from location to location has challenged geotechnical engineers to make optimum use of empirical formulas to predict bearing strength characteristics of soils. One major One major One major One major One major One major problem associated with bearing capacity of soil includes the different engineering properties associated with different geologic formations which have led to the deterioration of engineering structures. This paper seeks to establish a correlation between CBR and Ultimate bearing capacity from the intrinsic characteristics of fine and coarse soils within the Tarkwaian. Laboratory investigations were conducted on two different soils compressed at various placement conditions (i.e. moisture content and dry density) and tested using CBR and Direct shear tests. Linear relationships of CBR and ultimate bearing capacity with the consistency factor which is formed by combining placement conditions and soil intrinsic parameters were established. The results declared that the established relationships could predict CBR and ultimate bearing capacity absolutely with a coefficient of determination (R2) more than 0.9. In addition, t – test performed on the R2 value revealed that the relationship is statistically significant. These findings affirm that the recommended equations are good and helpful to forecast bearing strength parameters for diverse soils.

Keywords: Placement Condition, Consistency Factor, Bearing Strength, Soils types, Index Properties


Keywords


Placement Condition, Consistency Factor

Full Text:

PDF

References


Arora, K. R. (2003), “Soil Mechanics and Foundation Engineering”, Standard Publishers Distributors, Delhi, 6th Edition, 886 pp.

Black, W.P.M. (1962), “A method of estimating the California bearing ratio of cohesive soils from plasticity data”, Geotechnique, 12, pp. 271-282.

Bowles, J. E. (1992), “Engineering Properties of Soils and Their Measurement”, McGraw-Hill, USA, 4th Edition, 241 pp.

British Standards Institution BS 1377, (1990), “Methods of Test for Soils for Civil Engineering Purposes”, BSI, London.

Hansen, J.B. (1961), “A general formula for bearing capacity”, Danish Geotechnical Institute Bulletin, Vol. 11.

Hartmann, A. (2015), “Infrastructure Management lecture sheet”, Importance of infrastructure and infrastructure management. Enschede: Universiteit Twente.

Karpeta, W.P. (2000), “A Review of the Geology, Mining and Exploration of the Tarkwa Mine Area”, Unpublished, Bastillion Limited, pp. 15 – 40.

Magdi, M. E., Zumrawi and Hussam E. (2016), “Predicting Bearing Strength Characteristics from Soil Index Properties”, International Journal of Civil Engineering and Technology, 7(2), pp. 266 – 277.

Meyerhof, G.G (1963), “Some recent research on the bearing capacity of foundations”, Canadian Geotechnical Journal, Vol. 1, No. 1, pp. 16 – 26.

Obosu, J. K. (2012), “Estimation of Underground Water in a section of the Abontiakoon Vertical Shaft at Gold Fields Ghana Limited, Tarkwa Mine”, Unpublished MSc. Thesis, University of Mines and Technology, Tarkwa, 144 pp.

Terzaghi, K. (1963), “Soil Mechanics in Engineering Practice”, John Wiley & Sons Incorporated, United States of America, Third Edition, 534 pp.

Vesic, A.S. (1973), “Analysis of ultimate loads of shallow foundations”, Journal of Soil Mechanics and Foundation Division, Vol. 99, No. 1, pp. 45 – 73.


Refbacks

  • There are currently no refbacks.