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Underpinning Wikipedia. 'Traditional underpinning,' the mass concrete underpinning method is nearly 100 years in age, and the protocol has not changed. This underpinning method strengthens an existing structure's foundation by digging boxes by hand underneath and sequentially pouring concrete in a strategic order, accompanied by reinforcements if appropriate. The result is a foundation built underneath the existing foundation. This underpinning method is generally applied when the existing foundatio…

Underpinning Wikipedia
Underpinning Wikipedia from www.buildfix.com.au

WebUnderpinning a house, a residential dwelling or even a commercial building is the construction process of strengthening the foundation by building.