Excavation is the first step in the basement construction process. The land is excavated to whatever depth is determined after considering the water table level, the climate, and soil conditions. Trenches are dug for concrete footings, which are needed to provide structural support for the walls. To reinforce the foundation, a steel reinforcing bar is embedded in the concrete to help stabilize the concrete during settling shifts and the mechanical vibration process used to eliminate air pockets.
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