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- W2370059622 abstract "Like many other rock materials,the mechanical properties of gas-saturated coal also present scale effect.Home-made coal saturation and compression apparatus were used together with an electronic universal testing machine to conduct uniaxial compression of gas-saturated coal samples with different gas pressures and different height-diameter ratios.Before compression,coal samples were saturated by methane gas with different pressures.Sample deformation and fracture,pressure strength and Young's modulus relative to scale effect of gas-saturated coal were analysed.Results show that both ultimate compression strength and Young's modulus decrease along with the gas pressure growing and the height-diameter ratio increasing,but Young's modulus decreasing is not so distinct as the compression strength.Young's modulus increases slightly along with the height-diameter ratio increasing.Scale effect revealed in this paper can be explained reasonably by Weibull model and enhanced line-flexible model.The results may provide new experimental and theoretical approaches to further investigating scale effect of rock materials." @default.
- W2370059622 created "2016-06-24" @default.
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- W2370059622 date "2009-01-01" @default.
- W2370059622 modified "2023-09-27" @default.
- W2370059622 title "Experimental Study of Scale Effect on Gas-saturated Coal Samples subjected to Uniaxial Compression" @default.
- W2370059622 hasPublicationYear "2009" @default.
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