The Interplay of In Situ Stress Ratio and Transverse Isotropy in the Rock Mass on Prestressed Concrete-Lined Pressure Tunnels

Simanjuntak, T. D. Y. F.; Marenče, M.; Schleiss, Anton; Mynett, Arthur E.

doi:10.1007/s00603-016-1035-8

Cited by 16 publications

(1 citation statement)

References 22 publications

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“…Moreover, the wave phase velocity [14] and ultrasonic response [15] across the transversely isotropic layers were employed and analyzed, creating an effective constitutive model that was capable of describing the bedding plane elastic-plastic matrix equation [16]. The evolution of the mechanical parameters of bedding planes with the internal variable was determined, including the isotropic plane direction and dip angle [17], and the magnitude of the anisotropic elastic constant [18] and its influence under nonuniform action [19]. The studies revealed that the in situ stress ratio and the orientation of the bedding plane significantly affected the load distribution.…”

Section: Introductionmentioning

confidence: 99%

Analytical Solution of Stress in a Transversely Isotropic Floor Rock Mass under Distributed Loading in an Arbitrary Direction

Zhao

Wang

et al. 2021

Applied Sciences

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Rock masses with a distinct structure may present a transversely isotropic character; thus, the stress state in a transversely isotropic elastic half-plane surface is an important way to assess the behavior of the interaction between the distributed loading and the surroundings. Most previous theoretical analyses have considered a loading direction that is either vertical or horizontal, and the stress distribution that results from the effect of different loading directions remains unclear. In this paper, based on the transversely isotropic elastic half-plane surface theory, a stress solution that is applicable to distributed loading in any direction is proposed to further examine the loading effect. The consistency between the analytical solution and numerical simulations showed the effectiveness of the proposal that was introduced. Then, it was utilized to analyze the stress distribution rule by changing the Poisson’s ratio and Young’s modulus of the model. The effects of the formation dip angle on the stress state are also examined. The stress distribution, depending on the physical property parameters and relative angle, is predicted using an analytical solution, and the mechanisms associated with the transversely isotropic elastic half-plane surface subjected to the loading in any direction are clarified. Additionally, extensive analyses regarding this case study, with respect to the mechanical behavior associated with changes in the stress boundary, is available. Hence, the proposed analytical solution can more realistically account for the loading problem in many engineering practices.

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