CPC E02D 27/48 (2013.01) [B01F 23/60 (2022.01); B01F 33/5013 (2022.01); B01F 33/8052 (2022.01); B01F 33/83 (2022.01); E02D 3/126 (2013.01); E02D 7/00 (2013.01); E02D 37/00 (2013.01); E02F 3/22 (2013.01); B01F 33/83611 (2022.01); E02D 2250/003 (2013.01); E02D 2300/002 (2013.01); E02D 2300/0004 (2013.01); E02D 2300/0018 (2013.01); E02D 2300/0021 (2013.01); E02D 2300/0023 (2013.01)] | 21 Claims |
14. A method of underpinning an existing structure, comprising:
creating an approach pit in an area adjacent to soil below the existing structure with a mechanical cutting tool, the mechanical cutting tool including at least a drum and plurality of cutting blades attached thereto;
rotating the mechanical cutting tool to a substantially horizontal position, rotating the mechanical cutting tool including rotating the drum and plurality of cutting blades;
cutting and dislodging soil below the existing structure by rotating the drum and plurality of cutting blades relative to a remaining portion of the cutting tool;
introducing an additive to the soil;
using the mechanical cutting tool, mixing the soil and the additive in an area below the existing structure; and
allowing the mixed soil and additive to harden forming an underpinning structure below the existing structure.
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