Mechanical behaviors of deep pillar sandwiched between strong and weak layers

Ram, Sahendra; Waclawik, Petr; Nemcik, Jan; Kukutsch, Radovan; Kumar, Ashok; Singh, Arun Kumar; Gong, Libin

doi:10.1016/j.jrmge.2022.11.006

Cited by 7 publications

(3 citation statements)

References 40 publications

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“…These challenges pose a formidable barrier to the safe and efficient extraction of underground resources. The imperative to investigate the destructive mechanisms of deep roadways and propose corresponding control technologies is evident [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Gradient failure mechanism and control technology of deep roadways under the action of deviatoric stress field

Wang,

Liu,

Shan

et al. 2024

Heliyon

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Section: Introductionmentioning

confidence: 99%

Gradient failure mechanism and control technology of deep roadways under the action of deviatoric stress field

Wang,

Liu,

Shan

et al. 2024

Heliyon

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“…10 Rama et al studied the deformation and damage characteristics of the surrounding rocks of the roadway under coal room and pillar mining methods. 11 He et al established and solved a mechanical model for calculating the working resistance of the rock bolt based on the rock bolt's tensile characteristics and the deformation of surrounding rock. This provides a theoretical basis for the supporting design of quadrilateral roadways.…”

Section: Introductionmentioning

confidence: 99%

“…Pan carried out the anchor injection test of fractured rock mass, revealed the support mechanism of anchor injection of fractured rock mass, and proposed the anchor injection support technology of fractured surrounding rock 10 . Rama et al studied the deformation and damage characteristics of the surrounding rocks of the roadway under coal room and pillar mining methods 11 . He et al established and solved a mechanical model for calculating the working resistance of the rock bolt based on the rock bolt's tensile characteristics and the deformation of surrounding rock.…”

Section: Introductionmentioning

confidence: 99%

Research on the differentiated support technology for roadways based on the mechanical response of the plastic zone

Fan,

Wang,

Yuan

et al. 2023

Energy Science & Engineering

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With the advancement of coal resources mining to the deep part, the control of the surrounding rock of the roadway has become one of the main problems in the field of mining. At the present stage, the bolt support technology of the roadway in China still faces problems such as unclear support mechanism and poor support effect. Based on the mechanism of bolt support, through theoretical analysis and experimental research, this study proposes the differentiated support technology for roadways based on the mechanical response of the plastic zone and applies this method in the Gada Coal Mine. The results of the study showed that the plastic zones with different shapes have different mechanical responses. compared with other plastic zone shapes, the control method of the roadway with a butterfly‐shaped plastic zone is more complex. Consequently, the support design of a bolt should not only consider the scope of the plastic zone of support construction but also grasp the development law of the plastic zone. Effective support measures should be taken as early as possible for roadways with butterfly‐shaped plastic zones to prevent aggressive development of the butterfly‐shaped plastic zone. Field tests show that this support method realizes the ideal supporting effect in practical applications.

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Numerical and theoretical study of large-scale failure of strata overlying sublevel caving mines with steeply dipping discontinuities

Xia,

Si,

Chen

et al. 2024

Int J Miner Metall Mater

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Mechanical behaviors of deep pillar sandwiched between strong and weak layers

Cited by 7 publications

References 40 publications

Gradient failure mechanism and control technology of deep roadways under the action of deviatoric stress field

Gradient failure mechanism and control technology of deep roadways under the action of deviatoric stress field

Research on the differentiated support technology for roadways based on the mechanical response of the plastic zone

Numerical and theoretical study of large-scale failure of strata overlying sublevel caving mines with steeply dipping discontinuities

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