A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
On the Ratios between Elastic Modulus and Uniaxial Compressive Strength of Heterogeneous Carbonate Rocks
Abstract The ratios MR = E/σc for 11 heterogeneous carbonate (dolomites, limestones and chalks) rock formations collected from different regions of Israel were examined. Sixty-eight uniaxial compressive tests were conducted on weak-to-strong (5 MPa < σc < 100 MPa) and very strong (σc > 100 MPa) rock samples exhibiting wide ranges of elastic modulus (E = 6100–82300 MPa), uniaxial compressive strength (σc = 14–273.9 MPa), Poisson's ratio (ν = 0.13–0.49), and dry bulk density (ρ = 1.7–2.7 g/$ cm^{3} $). The observed range of MR = 60.9–1011.4 and mean value of MR = 380.5 are compared with the results obtained by Deere (Rock mechanics in engineering practice, Wiley, London, pp 1–20, 1968) for limestones and dolomites, and the statistical analysis of MR distribution is performed. Mutual relations between E, σc, ρ, MR for all studied rocks, and separately for concrete rock formations are revealed. Linear multiple correlations between E on the one hand and σc and ρ on the other for Nekorot and Bina limestone and Aminadav dolomite are obtained. It is established that the elastic modulus and MR in very strong carbonate samples are more correlated with ρ−σc combination and εa max, respectively, than in weak to strong samples. The relation between MR and maximum axial strain (εa max) for all studied rock samples (weak-to-strong and very strong) is discussed.
On the Ratios between Elastic Modulus and Uniaxial Compressive Strength of Heterogeneous Carbonate Rocks
Abstract The ratios MR = E/σc for 11 heterogeneous carbonate (dolomites, limestones and chalks) rock formations collected from different regions of Israel were examined. Sixty-eight uniaxial compressive tests were conducted on weak-to-strong (5 MPa < σc < 100 MPa) and very strong (σc > 100 MPa) rock samples exhibiting wide ranges of elastic modulus (E = 6100–82300 MPa), uniaxial compressive strength (σc = 14–273.9 MPa), Poisson's ratio (ν = 0.13–0.49), and dry bulk density (ρ = 1.7–2.7 g/$ cm^{3} $). The observed range of MR = 60.9–1011.4 and mean value of MR = 380.5 are compared with the results obtained by Deere (Rock mechanics in engineering practice, Wiley, London, pp 1–20, 1968) for limestones and dolomites, and the statistical analysis of MR distribution is performed. Mutual relations between E, σc, ρ, MR for all studied rocks, and separately for concrete rock formations are revealed. Linear multiple correlations between E on the one hand and σc and ρ on the other for Nekorot and Bina limestone and Aminadav dolomite are obtained. It is established that the elastic modulus and MR in very strong carbonate samples are more correlated with ρ−σc combination and εa max, respectively, than in weak to strong samples. The relation between MR and maximum axial strain (εa max) for all studied rock samples (weak-to-strong and very strong) is discussed.
On the Ratios between Elastic Modulus and Uniaxial Compressive Strength of Heterogeneous Carbonate Rocks
Palchik, V. (author)
2010
Article (Journal)
Electronic Resource
English
BKL:
38.58
Geomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
38.58$jGeomechanik
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB41
| British Library Online Contents | 2011
Bayesian prediction of elastic modulus of intact rocks using their uniaxial compressive strength
| Online Contents | 2014