\begin{tabular}{m{4.5cm}||m{0.5cm}|m{0.5cm}|m{0.5cm}|m{0.5cm}|m{0.5cm}|m{0.5cm}}
\hline
     & $K_{\sigma_{11}}$ 
     & $K_{\sigma_{22}}$ 
     & $K_{\sigma_{33}}$ 
     & $K_{\sigma_{12}}$ 
     & $K_{\sigma_{13}}$ 
     & $K_{\sigma_{23}}$ \\
\hline
\hline
  Туннельная пора & 
  $\frac{0.97}{0.98}$ & 
  $\frac{0.96}{0.97}$ & 
  $\frac{0.95}{0.97}$ &
  $\bf\frac{1.63}{1.47}$ & 
  $\bf\frac{1.37}{1.27}$ & 
  $\bf\frac{1.84}{1.77}$ \\
\hline
  Разрыв волокна основы & 
  $\frac{0.98}{0.98}$ & 
  $\frac{0.96}{0.97}$ & 
  $\frac{0.97}{0.98}$ &
  $\frac{1.34}{1.27}$ & 
  $\bf\frac{2.31}{1.77}$ & 
  $\frac{2.13}{1.99}$ \\
\hline
  Разрыв волокон основы и утка & 
  $\frac{0.95}{0.97}$ & 
  $\frac{0.95}{0.96}$ & 
  $\frac{0.96}{0.97}$ & 
  $\frac{1.98}{1.77}$ & 
  $\bf\frac{4.36}{3.31}$ & 
  $\frac{2.50}{2.31}$ \\
\hline
\end{tabular}