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Excavation activities are an integral part of the construction industry, involving digging, trenching, and earthmoving to prepare foundations and underground structures. Despite their importance, excavations are highly hazardous and contribute significantly to accidents, injuries, and fatalities in construction. The hazards associated with excavation arise from unstable soil conditions, working in confined spaces, the presence of underground utilities, and environmental factors. Understanding these hazards and adopting effective mitigation measures is crucial to ensuring the safety of workers and preventing accidents. One of the most critical hazards in excavation is the risk of cave-ins or soil collapse. Trenches and excavated pits can become unstable due to loose or weak soil, vibrations from machinery, or changes in moisture levels. When a cave-in occurs, workers may be buried under tons of soil within seconds, often leading to fatal outcomes. Another common hazard is ____ __________ ______ ___ ________ ___ ________ _______ ______ ___ ____.
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