When the surface features special topographies, large clusters of high-rise buildings, residential areas, cultural relics, railways, highways, rivers, lakes, or seas, making excavation impossible or requiring high-precision target positioning, directional drilling technology effectively addresses these challenges. This technology is characterized by flexible operation sites and controllable trajectories, enabling precise avoidance of buildings and mitigation of adverse terrain impacts.

            Directional drilling technology allows for precise trajectory control to traverse different ore bodies. For larger ore bodies, the "one hole multi-branch" technology can be employed, replacing densely spaced boreholes with branch holes to reduce surface damage and engineering volume. This avoids multiple crossings of complex and hard surface strata, thereby minimizing construction workload.