US 11,788,249 B2
Cutting tool adapter and method of underpinning structures using cutting tool adapter for soil mixing
Matthew J. Niermann, Ashburn, VA (US); and Walter W. Trail, Jr., Hedgesville, WV (US)
Assigned to Schnabel Foundation Company, Sterling, VA (US)
Filed by Schnabel Foundation Company, Sterling, VA (US)
Filed on Dec. 4, 2020, as Appl. No. 17/111,825.
Application 17/111,825 is a continuation of application No. 16/048,971, filed on Jul. 30, 2018, granted, now 10,889,955.
Prior Publication US 2021/0087774 A1, Mar. 25, 2021
Int. Cl. E02D 27/48 (2006.01); E02D 37/00 (2006.01); E02D 3/12 (2006.01); E02D 7/00 (2006.01); E02F 3/22 (2006.01); B01F 23/60 (2022.01); B01F 33/83 (2022.01); B01F 33/501 (2022.01); B01F 33/80 (2022.01)
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
OG exemplary drawing
 
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.