| contributor author | A. K. | |
| contributor author | Verma | |
| contributor author | Deb | |
| date accessioned | 2017-05-08T21:45:30Z | |
| date available | 2017-05-08T21:45:30Z | |
| date copyright | April 2013 | |
| date issued | 2013 | |
| identifier other | %28asce%29gm%2E1943-5622%2E0000203.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/61591 | |
| description abstract | Longwall mining is the only technically proven and well-established mining method used worldwide for extracting coal from deep mines. In this paper, two-dimensional (2D) continuum finite-element models of longwall panels are developed and analyzed to understand the interaction of hydraulic-powered support with surrounding rock strata (i.e., roof, floor, and coal seam). The finite-element models thus developed include the structural components of hydraulic-powered support, the surrounding rock mass, and broken rocks. The study focuses on the evaluation of strata behavior while the coal face is supported by hydraulic-powered supports of different capacities. The results from finite-element models are further analyzed in terms of stress distribution in hydraulic legs, abutment, and roof-to-floor convergence. Statistical relations are developed based on deterministic finite-element results, which provide a good correlation with the field measurements. | |
| publisher | American Society of Civil Engineers | |
| title | Numerical Analysis of an Interaction between Hydraulic-Powered Support and Surrounding Rock Strata | |
| type | Journal Paper | |
| journal volume | 13 | |
| journal issue | 2 | |
| journal title | International Journal of Geomechanics | |
| identifier doi | 10.1061/(ASCE)GM.1943-5622.0000190 | |
| tree | International Journal of Geomechanics:;2013:;Volume ( 013 ):;issue: 002 | |
| contenttype | Fulltext | |
