Ground preparation is one of the first activities on a construction site. Excavations are integral to grading and surface compactions. Trenches are deeper excavations requiring special protections f...Ground preparation is one of the first activities on a construction site. Excavations are integral to grading and surface compactions. Trenches are deeper excavations requiring special protections for those working in the trenches as trench cave-ins or collapse can result in a worker death.
