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| Technology study on support parameter optimization of large section roadway |
| Liu Bo |
| Aluminum Corporation of China Ltd., Beijing 100082, China |
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Abstract Based on large section mining roadway of working face in Wangwa Second Mine, the large section roadway supporting of Wangwa Second Mine was analyzed and the reason of unstable surrounding rock was summarized in this paper through field investigation, laboratory test, theoretical analysis of stability of surrounding rock and numerical simulation of FLAC3D. The supporting technology of anchor wire rope coupling strengthening applied to large section roadway was given according to destruction features of roadway. The project practice showed that the supporting problem of degeneration of surrounding rock damage in large section roadway was efficiently solved with the help of supporting technology of anchor wire rope coupling strengthening.
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