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| Analysis on tray parameters optimization of roadway anchor bolt support system |
| Bai Genwei |
| Du’erping Mine, Xishan Coal and Power Group, Taiyuan 030022, China |
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Abstract The tray structural force of Du”erping Mine was taken as example and analyzed, numerical analysis was used to prove that the stain of the edge of the tray was the largest. The new tray with more strength and reasonable shape solved the problem of pallet failure and nut-pull buckle. The new tray bearing capacity exceeded the old one 100%, preload conversion efficiency improved by 60%, with good effect, providing reference for underground support.
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