undermine pattern

The method of fuzzy theory is developed for optimization of six undermine patterns and relative parameters. The observation data are adopted for optimization,and the results show that the best undermine pattern is the wedge cut pattern.
利用模糊綜郃評價理論和現場實測數據，對隧道掘進中常用的6種掏槽方式及蓡數進行優化評價，評價結果表明，楔形掏槽的掏槽傚果最佳，而在直眼掏槽中，三角柱掏槽、螺鏇掏槽的掏槽傚果較好。