Three Dimensional Numerical Analysis on Rock Cutting Behavior of Disc Cutter Using Particle Flow Code

Lee, Seung-Joong; Choi, Sung-Oong

doi:10.7474/tus.2013.23.1.054

Cited by 2 publications

(1 citation statement)

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“…Moon and Oh (2012) used discrete element method (PFC2D) to examine the optimal conditions for cutting a rock using hard-rock TBMs. Lee and Choi (2013) used a numerical software (PFC3D) to study the shear behavior of a cutting disk on rock. In another research, Choi and Lee (2015) considered shear behavior of rock by a single cutting disk using PFC3D.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of plow system performance in long-wall mining method using particle flow code

Ajamzadeh

Sarfarazi

Dehghani

2019

Int J Coal Sci Technol

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The underground or open-pit methods are used for the extraction of mineral resources, each of which is divided into different categories. Coal is one of the mineral resources, which is exploited either by the surface or the underground methods. The long-wall mining is one of the methods for the underground coal mining. In this method, which is a mechanized one, some machines such as the shearer or plow are used for the mining. The coal mine in Parvadeh, Tabas is a mechanized mine that is extracted by the long-wall mining. The modeling with particle flow code software was used in this mine for the evaluation of plow performance using the coal specifications. In this regard, the sample was first calibrated by sampling from the Parvadeh coal mine and performing the uniaxial and Brazilian tests on the model. Then, the modeling was done by constructing the model and using the variables such as the clearance angle and the linear velocity of the plow. After making 28 models for the plow, the best model of the plow was selected based on the maximum force applied to the machine in the X direction. Finally, the results of this study showed that the best plow performance is for a model with the clearance angle of zero and the linear velocity of 9 mm/min, and the maximum force applied to this model is equal to 39,000 kN in the X direction.

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Section: Introductionmentioning

confidence: 99%

Evaluation of plow system performance in long-wall mining method using particle flow code

Ajamzadeh

Sarfarazi

Dehghani

2019

Int J Coal Sci Technol

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A numerical study on rock cutting by a TBM disc cutter using SPH code

Jeong

Jeon

Cho³

2013

Journal of Korean Tunnelling and Underground Space Association

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Numerical simulation on rock cutting by a TBM disc cutter was carried out using SPH (Smoothed Particle Hydrodynamics) code. AUTODYN3D, a commercial software program based on finite element method, was used in this study. The three-dimensional geometry of a disc cutter and a rock specimen were modeled by Lagrange and SPH code respectively. The numerical simulation was carried out for Hwangdeung granite for 10 different cutting conditions. The results of the numerical simulation, i.e. the relation between cutter force and failure behavior, had a good agreement with those from LCM test. The cutter forces measured in the numerical simulation had 10% deviation from the LCM test results. Moreover, the optimum cutter spacing was almost identical with the experimental results. These results indicate that SPH code can be successfully used had applicability for simulation on rock cutting by a TBM disc cutter. However, further study on Lagrange-SPH coupled modelling would be necessary to reduce the computation time.

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Three Dimensional Numerical Analysis on Rock Cutting Behavior of Disc Cutter Using Particle Flow Code

Cited by 2 publications

References 0 publications

Evaluation of plow system performance in long-wall mining method using particle flow code

Evaluation of plow system performance in long-wall mining method using particle flow code

A numerical study on rock cutting by a TBM disc cutter using SPH code

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