## 4 Experimental Validation and Project Examples
\begin{table}
\begin{tabular}{c c c c c c} \hline
**Borehole** & **Trend**\(\alpha_{i}\) & **Inclination** & **Design** & **Center of** & **Center**\(y\) \\
**Number** & **Trend**\(\alpha_{i}\) & \(\beta_{i}\) & **Depth (m)** & **Office**\(x\) & **Coordinate of** \\  & & & & & **Coordinate (m)** & **Office (m)** \\ \hline ZK1 & 90\({}^{\circ}\) & 0\({}^{\circ}\) & 0.2 & \(-0.065\) & \(-0.075\) \\ ZK2 & 90\({}^{\circ}\) & 0\({}^{\circ}\) & 0.25 & 0 & 0 \\ ZK3 & 90\({}^{\circ}\) & 0\({}^{\circ}\) & 0.25 & 0.065 & \(-0.065\) \\ ZK4 & 270\({}^{\circ}\) & 6\({}^{\circ}\) & 0.2 & \(-0.1\) & 0.02 \\ ZK5 & 96\({}^{\circ}\) & 6\({}^{\circ}\) & 0.25 & 0.025 & 0.075 \\ ZK6 & 90\({}^{\circ}\) & 6\({}^{\circ}\) & 0.25 & 0.08 & 0.095 \\ \hline \end{tabular}
\end{table} 
Table 2: Parameters of each borehole. Figure 9: Data acquisition using digital panoramic borehole camera. The structural plane coordinate points are plotted to the 3D coordinate system, and the results are shown in Figures 12 and 13. \begin{table}
\begin{tabular}{c c c} \hline \hline
**Borehole Number** & **Structure Plane I Coordinate Points** & **Structure Plane II Coordinate Points** \\ \hline ZK1 & (0.0113, \(-\)0.0003, 0.0557) & Not worn \\ ZK2 & (0.0178, \(-\)0.0007, 0.0831) & (0.0026, \(-\)0.0689, 0.1499) \\ ZK3 & (0.0190, \(-\)0.0002, 0.0850) & (\(-\)0.0027, \(-\)0.0847, 0.1801) \\ ZK4 & (0.0140, \(-\)0.0003, 0.0675) & Not worn \\ ZK5 & (0.0221, \(-\)0.0008, 0.0951) & (\(-\)0.0012, \(-\)0.0796, 0.1617) \\ ZK6 & (0.0214, \(-\)0.0006, 0.0933) & (0.0018, \(-\)0.0556, 0.1232) \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Structural plane coordinate points in sample 2. Figure 11: The fitted sine curve. \begin{table}
\begin{tabular}{c c c} \hline \hline
**Borehole Number** & **Structure Plane I Coordinate Points** & **Structural Plane II Coordinate Points** \\ \hline ZK1 & (0.0167, \(-\)0.0039, 0.0577) & Not worn \\ ZK2 & (0.0227, \(-\)0.0046, 0.0776) & (\(-\)0.0090, \(-\)0.0573, 0.1544) \\ ZK3 & (0.0244, \(-\)0.0033, 0.0866) & (\(-\)0.0074, \(-\)0.0555, 0.1513) \\ ZK4 & (0.0195, \(-\)0.0028, 0.0655) & Not worn \\ ZK5 & (0.0238, \(-\)0.0044, 0.0836) & (\(-\)0.0095, \(-\)0.0470, 0.1175) \\ ZK6 & (0.0248, \(-\)0.0055, 0.0951) & (\(-\)0.0085, \(-\)0.0475, 0.1205) \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Structural plane coordinate points in sample 1. Figure 10: Partial borehole wall images. The figure shows that the coordinate points of structural plane I and structural plane II are separated from each other. Furthermore, the coordinate points of the same structural plane are concentrated so that the structural plane can be well distinguished by this calculation method. There is no apparent regularity for the position of coordinate points of vertical and inclined holes, so the calculation method applies to drilling at any angle in space. Comparing the coordinate point positions of sample 1 and sample 2, it can be found that the coordinate points of the structural plane with an undulating angle are more discrete than the flat structural plane. Therefore, the \(\varepsilon\) in the Equation (20) can be appropriately enlarged when the structural plane has some roughness and undulation angle. Xichang Iron Mine, located in Sichuan Province, is a large open-pit iron mine. Due to the expansion of the mining scale and the increase of the mining speed, the problem of the side gang on both sides of the mine is becoming more and more prominent. The recovery of an ancient landslide was found on the south side of the mine, which caused great hidden danger to the safety production of the mine. In order to ensure the normal mining of the mine, it is necessary to further survey the side slopes on both sides of the mine. Using the digital panoramic borehole camera system to survey multiple boreholes on the side gang of the mine, we can understand the landslide's inner structural plane, the distribution of the fracture zone, and its coherence analysis to make a targeted reinforcement strategy.