Deep excavation collapses in construction can occur due to various factors, often linked to soil instability and insufficient support systems. Without proper reinforcement, such as shoring, bracing, or retaining structures, the surrounding soil may shift or erode, leading to a collapse. A lack of understanding of soil conditions, particularly when weak or waterlogged soils are present, can significantly increase the risk. External factors like heavy rainfall, groundwater seepage, or vibrations f