基于响应面法的破碎围岩条件下采场结构参数优化研究

doi:10.13722/j.cnki.jrme.2016.0715

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Abstract To obtain the optimal stope structure parameters，when the mine safety and economy were considered together，the response surface method was put forward，and the central composite design experiments were performed to investigate the effect of stope height，pillar diameter，pillar spacing and pillar array pitch in broken rock conditions on the maximum tensile stress，maximum compressive stress and ore recovery rate. The response surface regression models of the maximum tensile stress，maximum compressive stress and the ore recovery rate were established by the results of finite element model，then the stope structure parameters were optimized by the method of nonlinear multi-objective technology based on the overall desirability criteria. It is found that the overall desirability of stope reduced along with the increase of mining height，and it presents a trend of increase，then decreases with the increase of pillar diameter，pillar spacing and pillar width. The optimal mining height is 3.5 m，the pillar diameter is 3.5 m，the pillar spacing is 3 m and the pillar array pitch is 5 m. This method is scientific，reasonable，and provides the technical support for Bainiuchang mine?s safety，economy and efficient exploitation in broken rock conditions.

Key words： rock mechanics stope structure parameters response surface method central composite design multi-objective optimization

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	Articles by authors
	CHEN Shunman1
	2
	WU Aixiang1
	2
	WANG Yiming1
	2
	CHEN Xun1
	2

Cite this article:

CHEN Shunman1,2,WU Aixiang1, et al. Optimization research on stope structure parameters in broken rock conditions based on the response surface method[J]. , 2017, 36(S1): 3499-3508.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2016.0715 OR https://rockmech.whrsm.ac.cn/EN/Y2017/V36/IS1/3499

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