Which method is commonly associated with trenchless technology?

Directional drilling is commonly associated with trenchless technology because it allows for the installation of underground utilities without the need to excavate large trenches. This method enables engineers to create horizontal boreholes to install pipes, cables, and other utilities while minimizing surface disruption and reducing environmental impact. The process typically involves the use of a drill that can navigate various soil types and obstacles, making it an efficient choice for urban environments or areas where traditional excavation would be impractical.

In contrast, excavation of large trenches, surface drilling, and building overhead conduits do not fall under the umbrella of trenchless technology as they all involve significant surface disruption or clearance. These methods can require extensive land area, create more waste, and disturb existing infrastructure. Thus, the distinction of directional drilling lies in its ability to perform utility installations with minimal ground disturbance, aligning perfectly with the principles of trenchless technology.