Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental study on change mechanism of coal and rock permeability under total stress and strain condition
In order to study the permeability evolution law of coal and rock under the action of mining dynamic load, the Darcy law steady-state measurement method was adopted to conduct the stress-strain permeability experiment of coal and rock using the triaxial compression permeability experiment device. The experimental results show that the increase of confining pressure prevents the development of tensile crack, resulting in the increase of stress peak and permeability decrease of the total stress-strain curve of coal and rock. With the same confining pressure, the variation trend of the coal rock strain-permeability curve and the stress-strain curve is basically the same, and there is a causal relationship, resulting in the hysteresis of the coal rock strain-permeability curve compared with the stress-strain curve.
Experimental study on change mechanism of coal and rock permeability under total stress and strain condition
In order to study the permeability evolution law of coal and rock under the action of mining dynamic load, the Darcy law steady-state measurement method was adopted to conduct the stress-strain permeability experiment of coal and rock using the triaxial compression permeability experiment device. The experimental results show that the increase of confining pressure prevents the development of tensile crack, resulting in the increase of stress peak and permeability decrease of the total stress-strain curve of coal and rock. With the same confining pressure, the variation trend of the coal rock strain-permeability curve and the stress-strain curve is basically the same, and there is a causal relationship, resulting in the hysteresis of the coal rock strain-permeability curve compared with the stress-strain curve.
Experimental study on change mechanism of coal and rock permeability under total stress and strain condition
2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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Experimental Study of the Stress Dependence of the Permeability of Rock
| Online Contents | 2016
Experimental Study of the Stress Dependence of the Permeability of Rock
| Online Contents | 2016
Experimental Study of the Stress Dependence of the Permeability of Rock
| British Library Online Contents | 2016