The purpose is to thoroughly investigate and control potential safety hazards, solve problems existing in safety management, and effectively prevent and resolutely contain the situation. The inspection requirements are comprehensive, in-depth and meticulous. It is necessary to improve the safeguard measures for production safety, thoroughly investigate and control potential safety hazards in strict accordance with technical regulations and standards for production safety, solve problems existing in safety management, and effectively prevent and resolutely curb the occurrence of situations. Investigate potential safety hazards before returning to work. Before returning to work, the construction unit should organize professionals to conduct a comprehensive safety hazard investigation on the construction site, focusing on large machinery, tall templates, foundation pit slopes and other dangerous areas.