Failure modes of shaft steelwork in the state of advanced corrosion

Fiołek, Przemysław; Jakubowski, Jacek; Tomczak, Kamil

doi:10.1016/j.engfailanal.2023.107059

Cited by 2 publications

(3 citation statements)

References 32 publications

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“…The authors' newest research on the load capacity of corroded structures enabled the identification of failure modes not previously considered [44,46,48]; thus, their accurate description can reduce the uncertainty of load capacity estimation [47]. Field tests on the structural connection stiffness and shaft steelwork numerical model enabled the determination of the dynamic characteristics and daF [51] as functions of the load application point position [50].…”

Section: Discussionmentioning

confidence: 99%

“…the commonly observed differences in the degree of cl of the guides and buntons are related to different local exposures to corrosive agents and differences in steel grades or the consequence of repairs and replacements. Fiołek et al [48] studied the impact of the cl of the guides and buntons on the load-carrying capacity and failure mode of a structure using numerical models. they demonstrated that the cl influenced the load capacity reduction and changed the failure mode of the steelwork.…”

Section: Load-carrying Capacitymentioning

confidence: 99%

“…However, when loaded at the connection between the guide and bunton, up to six different failure modes were observed depending on the degree of cl of the members and the direction of the force. damage to the connection between the bunton and shaft lining owing to advanced corrosion occurring in this area was also considered a simulation variant [48]. Permissible deflection exceedance failure or plastic deformation failure was observed in the structure in which one of the joints was damaged.…”

Section: Load-carrying Capacitymentioning

confidence: 99%

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Structural Safety Assessment of Shaft Steelwork – A Review

2023

Archives of Mining Sciences

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Structural Safety aSSeSSment of Shaft Steelwork -a reviewshaft steelwork is a component of critical infrastructure in underground mines. it connects the mining areas to the surface and enables the transport of personnel, equipment, and raw materials. its failure or malfunction poses a threat to people and causes economic losses. Shaft steelwork is an exceptional engineering structure exposed to dynamic loads from large masses moving at high speeds and is subject to intensive deterioration resulting from corrosion and geological or mining-induced deformations. These issues cause shaft steelwork to be subject to high structural safety requirements, design oversizing, demanding maintenance procedures, and costly replacement of corroded members. The importance and unique working conditions of shaft steelwork create practical design and maintenance problems that are of interest to engineers and scientists. This paper reviews publications on the structural safety of rigid shaft steelwork and summarises the range of research from the detection of guide rail failures through the assessment of load effects and guide resistance, to the evaluation of structural reliability. The effects of guide rail failures on guiding forces, models of the conveyance-steelwork interaction, the load-carrying capacity of shaft steelwork under advanced corrosion, and the probabilistic assessment of structural reliability are presented. Significant advances in understanding the mechanical behaviour of shaft steelwork and assessing its properties have been reported. This review summarises the current state of research on shaft steelwork structural safety and highlights key future development directions.

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