Stability Analysis of set-up Room of a deep Longwall Panel of Lndia using 3D Numerical Modelling Technique | ||
| Journal of Mining and Environment | ||
| مقاله 7، دوره 15، شماره 4، دی 2024، صفحه 1291-1308 اصل مقاله (15.17 M) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22044/jme.2024.14360.2689 | ||
| نویسندگان | ||
| Avula Rajashekar Yadav* 1؛ Sreenivasa Rao Islavath1؛ Srikanth Katkuri2 | ||
| 1Mining Engineering Department, Indian Institute of Technology Kharagpur, West Bengal, India | ||
| 2Adriyala Longwall Project, Singareni Collieries Company Limited, Telangana, India | ||
| چکیده | ||
| The installation gallery/set-up room of a longwall panel is driven for installation of the longwall face machineries to start the extraction of coal from the longwall panel. The width of the installation gallery is 8 to 9 m. This gallery needs to be stabilized till the face machineries to be deployed from the driving of the room as it required to stand more than 8 to 10 months and develop the high stress concentration, roof-to-floor convergence and yield zone in the roof and sides. Hence, in this study, a deep longwall mine of India is considered to analyze the behavior of set-up room. For this, a total of twelve 3D numerical models are developed and analyzed considering Mohr’s-Coulomb failure criterion. Three panels located at 417, 462, 528 m having three different widths (8, 10 and 12 m) of set-up rooms are examined. The width of the set-up room is taken based on the length of the shield support. The results in terms of vertical stress distribution, vertical displacement, roof-to-floor convergence, plastic strain and yield zone distribution are presented. | ||
| کلیدواژهها | ||
| Longwall؛ Set-up room؛ Stress Concentration؛ Roof to floor convergence؛ Yield zone | ||
| مراجع | ||
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