Open AccessModel of the Evolution of the Modulus of Elasticity E, As A Function of the Bearing Capacity Index ICBR of Gravelly Laterites. Case of the Banka Locality (Westcameroon)
Author(s) -
Keyangue Tchouata Jules Hermann,
Luc Leroy Ngueyep Mambou,
Gouafo Casimir,
E. Foadieng
Publication year - 2020
Publication title -
international journal emerging technology and advanced engineering
Language(s) - English
Resource type - Journals
ISSN - 2250-2459
DOI - 10.46338/ijetae1120_11
Subject(s) - elasticity (physics) , young's modulus , bearing capacity , elastic modulus , geotechnical engineering , modulus , mathematics , geology , materials science , composite material , geometry
The objective of this study is to model the evolution of the values of the modulus of elasticity E as a function of the bearing capacity index ICBR of Banka lateritic gravel, with the aim of reducing the cost and time of laboratory tests for the determination of the modulus of elasticity and the CBR index. Geotechnical identification tests were carried out on 18 laterite samples taken from the Banfeko, Bakoye and Ketcho sites in the Banka locality. ICBR values ranged from 31 to 51.92 and E-modulus values ranged from 80 MPa to 165 MPa. The resulting model is polynomial for all sites of the form: E = a* ICBR 5 + b* ICBR 4 + c* ICBR 3 + d* ICBR 2 + e* ICBR +f This model has the highest degree of interdependence of value 1.