forage souterrain

A DTH hammer is a type of percussion drilling tool that functions by delivering a series of rapid impacts to the drill bit, which then breaks the rock or other materials beneath the surface. The term down-the-hole refers to the hammer being placed directly above the drill bit, allowing the energy from the hammer to be transferred efficiently into the drill bit. This method enhances the speed and effectiveness of drilling operations, particularly in hard rock formations.


...

In contemporary society, the concept of the tableau has evolved, permeating various aspects of art, media, and even social movements. Social media platforms, for instance, have transformed the way individuals create and share their own visual narratives. The proliferation of image-based content encourages users to construct their own tableaux through photographs that freeze moments of their lives. These snapshots serve as an archive of personal and collective experiences, offering a glimpse into the complexity of human emotions and relationships.


...