Numerical Study on the Fracturing Mechanism of the Belt Conveyor Roadway in Dagushan Open-Pit Mine and Control Measures Evaluation

Cao, Yanghui; Yu, Qìng; Yang, Tianhong; Zhu, Wancheng; Le, Zhihua

doi:10.1007/s00603-022-02973-x

Cited by 3 publications

(1 citation statement)

References 36 publications

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“…The above information applies to all belt conveyors with lengths ranging from several metres to even several kilometres, and belt widths from several centimetres to more than two meters [8,9]. This group of conveyors includes short belt conveyors with a length of up to 40 m and a belt width reaching up to 1 m, often referred to as belt feeders [10,11].…”

Section: Introductionmentioning

confidence: 99%

Application of an Analytical Model of a Belt Feeder for Assessing the Load and Stability of Its Structure

Krauze,

Wydro,

Klempka

et al. 2023

Energies

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Belt conveyors, owing to their simple construction, high reliability and relatively low energy consumption, are the basic means of transporting loose and granular materials. Currently, thanks to continuous development, belt conveyors can reach a length of up to several kilometres, and their belt width can be more than two meters. Such possibilities are achieved thanks to increasingly better belts and drives. However, the most common are short belt conveyors with a length of up to 40 m and belt widths of up to 1 m, frequently referred to as belt feeders. Apart from the mining industry, they are widely used in power engineering, metallurgy and other industries (chemical plants, trans-shipment ports, storage yards, etc.). The design of machines, including belt feeders, is based on calculations. Modern design in technology is based on advanced computational methods and the possibilities of computer technology. Multi-variant simulation calculations are necessary, especially in the case of belt feeders, where none of the devices—despite the use of typical elements and subassemblies—are a repeatable solution. Only this procedure guarantees the selection of rational solutions already at the early stages of design. Therefore, in this article, an analytical model of a typical belt feeder was developed and its stability and forces in the supports were determined. This allowed the development of an application for testing the stability of the belt feeder at the design stage or when introducing structural changes.

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Section: Introductionmentioning

confidence: 99%

Application of an Analytical Model of a Belt Feeder for Assessing the Load and Stability of Its Structure

Krauze,

Wydro,

Klempka

et al. 2023

Energies

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A novel damaged-based numerical manifold method to simulate the failure process of brittle rocks from damage evolution to crack initiation, propagation and coalescence

Yongsheng,

Qinglei,

Guanglei

et al. 2023

Engineering Analysis with Boundary Elements

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Numerical Simulation of Underground Mining-Induced Fault-Influenced Rock Movement and Its Application

Zhou

Yang

et al. 2023

Sustainability

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The F317 fault, as a major tectonic zone in the Jianshan mine area, influences the geotectonic features and geomechanical properties of the mine area. Mining operations need to be conducted within these tectonic systems, so it is important to fully study and understand the characteristics and evolution of these tectonic systems to develop reasonable mining plans and safety measures. Aiming at the problem that the existence of the F317 fault affects the stability of the west road during the mining of the security pillar at The Jianshan underground mine in Panzhihua Iron Mine, the mechanical model of the fault surface was established through the theory of material mechanics. The mechanical criterion of fault slip during the security pillar retrieval process was obtained and combined with the contact surface theory in the numerical analysis software FLAC3D. Two numerical calculation models with and without the F317 fault were established to analyze the change characteristics of the maximum tensile stress and displacement of the road protection zone under different simulation scenarios. The influence of the fault’s presence on the surface road’s stability during the security pillar retrieval process was obtained. The study results show that changes in positive and shear stresses at the fault face caused by the security pillar retrieval process are the main factors influencing the fault slip. The upper side of the fault tends to slip along the fault face during the security pillar retrieval process, which theoretically prevents the transfer of subsidence displacement caused by underground mining to the roadside (foot side of the fault). The presence of the F317 fault has less effect on the tensile stresses at the road protection zone. Still, the fault allows the tensile stresses to be concentrated at the top and bottom of the quarry and at the isolated pillar, which is more likely to cause the rock to be stretched and squeezed. Without the F317 fault, the maximum subsidence displacement at the road protection zone is 30.59 mm, the maximum X-directional displacement is 42.17 mm (both of which are greater than the safe displacement limit by 20 mm), and the maximum Y-directional displacement is 19.75 mm, which is less than the safe displacement limit by 20 mm. Compared with the case without the F317 fault, the displacement at the road protection zone with the F317 fault is smaller, with a maximum subsidence displacement of 16.92 mm, a maximum X-directional displacement of 19.63 mm, and a maximum Y-directional displacement of 3.35 mm, all of which are less than the safe displacement limits. Therefore, the presence of the F317 fault provides some protection to the west side of the road from collapse due to underground mining.

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Numerical Study on the Fracturing Mechanism of the Belt Conveyor Roadway in Dagushan Open-Pit Mine and Control Measures Evaluation

Cited by 3 publications

References 36 publications

Application of an Analytical Model of a Belt Feeder for Assessing the Load and Stability of Its Structure

Application of an Analytical Model of a Belt Feeder for Assessing the Load and Stability of Its Structure

A novel damaged-based numerical manifold method to simulate the failure process of brittle rocks from damage evolution to crack initiation, propagation and coalescence

Numerical Simulation of Underground Mining-Induced Fault-Influenced Rock Movement and Its Application

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