Table 2 fc fitting formula of measuring points 3# and 7# at different tunnel spacings.
Location | Section O | Section M | Section N |
|---|---|---|---|
3# | \(f_{c} = 0.75\frac{{C_{p} }}{{Q^{1/3} }} \cdot (\frac{{Q^{1/3} }}{R})^{0.61} ,{\text{R}}^{2} = 0.{985}\) | \(f_{c} = 2.34\frac{{C_{p} }}{{Q^{1/3} }} \cdot (\frac{{Q^{1/3} }}{R})^{1.30} ,{\text{R}}^{2} = 0.{932}\) | \(f_{c} = 1.37\frac{{C_{p} }}{{Q^{1/3} }} \cdot (\frac{{Q^{1/3} }}{R})^{1.10} ,{\text{R2}} = 0.{967}\) |
7# | \(f_{c} = 0.93\frac{{C_{p} }}{{Q^{1/3} }} \cdot (\frac{{Q^{1/3} }}{R})^{0.88} ,{\text{R}}^{2} = 0.{99}0\) | \(f_{c} = 1.93\frac{{C_{p} }}{{Q^{1/3} }} \cdot (\frac{{Q^{1/3} }}{R})^{1.58} ,{\text{R}}^{2} = 0.{986}\) | \(f_{c} = 0.93\frac{{C_{p} }}{{Q^{1/3} }} \cdot (\frac{{Q^{1/3} }}{R})^{1.99} ,{\text{R}}^{2} = 0.{973}\) |
