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| STUDY ON CAVING THICKNESS EFFECTS OF SURROUNDING ROCK PRESSURE IN LANEWAY OF FULLY MECHANIZED TOP-COAL CAVING FACE |
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| DOI： |
| KeyWord:fully mechanized top-coal caving;mining thickness effect;displacement of deep surrounding rock; |
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WANG Lei,XIE Guang-xiang (Anhui University of Science , Technology,Huainan 232001,Anhui,China)
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| Abstract: |
| In this paper,the mechanical field characteristics of fully mechanized top-coal caving(FMTC) laneway surrounding rock are researched systematacially based on the results of in-situ measurement combined with numerical simulation in different mining thickness.With increment of caving seam,the results show there is complete different variation between displacement and stress in fully mechanized top-coal caving laneway.With increment of caving seam,the displacement of laneway increases obviously and the deforma... |
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