卧虎山铁矿采场极限暴露面积回归优化模型

胡建华,任启帆,亓中华,张纪伟

Regress Optimize Model of Limit Exposure Area to Stope in Wohushan Iron Mine

Jianhua HU,Qifan REN,Zhonghua QI,Jiwei ZHANG

表4 暴露面积与最大拉应力、最大压应力线性拟合结果

Table 4 Linear fitting results between exposed area and maximum tensile stress and maximum compressive stress respectively

应力类型	采场长/m	斜率	截距	方差	规律模型
顶板最大拉应力	30	0.00407	0.748	0.955	$y = 0.0041 x + 0.748$
顶板最大拉应力	40	0.00597	-0.902	0.986	$y = 0.006 x - 0.902$
两帮最大压应力	30	0.02283	7.708	0.9849	$y = 0.0228 x + 7.708$
两帮最大压应力	40	0.02129	4.87	0.9834	$y = 0.0213 x + 4.87$