Optimization of Reinforcement Schemes for Stabilizing the Working Floor in Coal Mines Based on an Assessment of Its Deformation State
Akhmatnurov D. Zamaliyev N. Mussin R. Demin V. Ganyukov N. Zagórski K. Skrzypkowski K. Korzeniowski W. Stasica J.
July 2025Multidisciplinary Digital Publishing Institute (MDPI)
Materials
2025#18Issue 13
In the Karaganda coal basin, deteriorating geomechanical conditions have been observed, including seam disturbances, diminished strength of argillite–aleurolite strata, water ingress, and pronounced floor heave, all of which markedly increase the labor intensity of maintaining developmental headings. The maintenance and operation of these entries for a reference coal yield of 1000 t necessitate 72–75 man-shifts, of which 90–95% are expended on mitigating ground pressure effects and restoring support integrity. Conventional heave control measures—such as relief drifts, slotting, drainage, secondary blasting, and the application of concrete or rock–bolt systems—deliver either transient efficacy or incur prohibitive labor and material expenditures while lacking unified methodologies for predictive forecasting and support parameter design. This study therefore advocates for an integrated framework that synergizes geomechanical characterization, deformation prognosis, and the tailored selection of reinforcement schemes (incorporating both sidewall and floor-anchoring systems with directed preloading), calibrated to seam depth, geometry, and lithological properties. Employing deformation state assessments to optimize reinforcement layouts for floor stabilization in coal mine workings is projected to curtail repair volumes by 30–40% whilst significantly enhancing operational safety, efficiency, and the punctuality of face preparation.
anchor support , coal-bearing rock mass , floor heaving , geomechanical modeling , mine workings , near-contour deformations , reinforcement technology , rock stratification , stress–strain state , underground stability
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Department of Information and Computing Systems, Abylkas Saginov Karaganda Technical University, 56 Nursultan Nazarbayev Avenue, Office 406, Karaganda, 100027, Kazakhstan
Faculty of Mechanical Engineering and Robotics, AGH University of Krakow, Mickiewicza 30 Av., Kraków, 30-059, Poland
Faculty of Civil Engineering and Resource Management, AGH University of Krakow, Kraków, 30-059, Poland
Department of Information and Computing Systems
Faculty of Mechanical Engineering and Robotics
Faculty of Civil Engineering and Resource Management
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