Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A numerical large strain solution for circular tunnels excavated in strain-softening rock masses
https://orcid.org/0000-0002-1052-388X
https://orcid.org/0000-0003-0409-5871
Abstract This paper presents a large strain numerical solution of a circular tunnel for the ground reaction curve (GRC) in strain-softening rock masses. Both the stress equilibrium equation and deformation compatibility equation are considered in a current coordinate. A series of examples are employed to validate the proposed solutions, and the results show that: (1) the displacement, softening and residual radii of larger strain solution are smaller than that of small strain solution, and their difference significantly increases with a decrease in the Young’s modulus. (2) the increasing Poisson’s ration and critical shear plastic strain decrease the displacement, softening and residual radii.
A numerical large strain solution for circular tunnels excavated in strain-softening rock masses
https://orcid.org/0000-0002-1052-388X
https://orcid.org/0000-0003-0409-5871
Abstract This paper presents a large strain numerical solution of a circular tunnel for the ground reaction curve (GRC) in strain-softening rock masses. Both the stress equilibrium equation and deformation compatibility equation are considered in a current coordinate. A series of examples are employed to validate the proposed solutions, and the results show that: (1) the displacement, softening and residual radii of larger strain solution are smaller than that of small strain solution, and their difference significantly increases with a decrease in the Young’s modulus. (2) the increasing Poisson’s ration and critical shear plastic strain decrease the displacement, softening and residual radii.
A numerical large strain solution for circular tunnels excavated in strain-softening rock masses
https://orcid.org/0000-0002-1052-388X
https://orcid.org/0000-0003-0409-5871
Abstract This paper presents a large strain numerical solution of a circular tunnel for the ground reaction curve (GRC) in strain-softening rock masses. Both the stress equilibrium equation and deformation compatibility equation are considered in a current coordinate. A series of examples are employed to validate the proposed solutions, and the results show that: (1) the displacement, softening and residual radii of larger strain solution are smaller than that of small strain solution, and their difference significantly increases with a decrease in the Young’s modulus. (2) the increasing Poisson’s ration and critical shear plastic strain decrease the displacement, softening and residual radii.
A numerical large strain solution for circular tunnels excavated in strain-softening rock masses
Zhang, Qiang (Autor:in) / Wang, Hong-Ying (Autor:in) / Jiang, Yu-Jing (Autor:in) / Lu, Meng-Meng (Autor:in) / Jiang, Bin-Song (Autor:in)
17.06.2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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