Table 1 PPV fitting formula of measuring points 3# and 7# at different cavern spacing.
Location | Section O | Section M3 | Section N3 |
|---|---|---|---|
3# | \(V = 12.76\left( {\frac{{\sqrt[3]{Q}}}{R}} \right)^{1.58} ,{\text{R}}^{2} = 0.{997}\) | \(V = 2.70\left( {\frac{{\sqrt[3]{Q}}}{R}} \right)^{1.00} ,{\text{R}}^{2} = 0.{984}\) | \(V = 3.26\left( {\frac{{\sqrt[3]{Q}}}{R}} \right)^{1.05} ,{\text{R}}^{2} = 0.{975}\) |
7# | \(V = 7.96\left( {\frac{{\sqrt[3]{Q}}}{R}} \right)^{2.26} ,{\text{R}}^{2} = 0.{989}\) | \(V = 3.71\left( {\frac{{\sqrt[3]{Q}}}{R}} \right)^{1.93} ,{\text{R}}^{2} = 0.{99}0\) | \(V = 2.86\left( {\frac{{\sqrt[3]{Q}}}{R}} \right)^{2.36} ,{\text{R}}^{2} = 0.{996}\) |
