Table 7 Fuzzy random sensitivity of shaft circumferential reinforcement ratio.
Mine | Deep/m | Conventional mean sensitivity | Conventional standard deviation sensitivity | Fuzzy random mean sensitivity | Fuzzy random standard deviation sensitivity | ||
|---|---|---|---|---|---|---|---|
\(\mathop {\left( {\frac{{\partial \tilde{P}_{f} }}{{\partial \tilde{\mu }_{{x_{i} }} }}} \right)}\nolimits_{\alpha }^{ - }\) | \(\mathop {\left( {\frac{{\partial \tilde{P}_{f} }}{{\partial \tilde{\mu }_{{x_{i} }} }}} \right)}\nolimits_{\alpha }^{ + }\) | \(\mathop {\left( {\frac{{\partial \tilde{P}_{f} }}{{\partial \tilde{\sigma }_{{x_{i} }} }}} \right)}\nolimits_{\alpha }^{ - }\) | \(\mathop {\left( {\frac{{\partial \tilde{P}_{f} }}{{\partial \tilde{\sigma }_{{x_{i} }} }}} \right)}\nolimits_{\alpha }^{ + }\) | ||||
Main shaft | 391–430 | 0.0907 | 0.0264 | 0.0617 | 0.1245 | 0.0231 | 0.0308 |
430–490 | 0.1074 | 0.0227 | 0.0688 | 0.1374 | 0.0201 | 0.0268 | |
490–545 | 0.1207 | 0.0172 | 0.0929 | 0.1422 | 0.0165 | 0.0228 | |
400–420 | 0.0935 | 0.0277 | 0.0668 | 0.1300 | 0.0241 | 0.0322 | |
Auxiliary shaft | 420–480 | 0.1063 | 0.0224 | 0.0744 | 0.1341 | 0.0204 | 0.0266 |
480–544 | 0.1459 | 0.0170 | 0.1019 | 0.1605 | 0.0143 | 0.0224 | |
400–430 | 0.0921 | 0.0286 | 0.0630 | 0.1305 | 0.0251 | 0.0331 | |
Air shaft | 430–490 | 0.0998 | 0.0231 | 0.0716 | 0.1402 | 0.0215 | 0.0279 |
490–538 | 0.1316 | 0.0198 | 0.0993 | 0.1619 | 0.0172 | 0.0240 | |