Invention Grant
- Patent Title: Pressure grouted displacement screw piles
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Application No.: US16970924Application Date: 2019-02-28
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Publication No.: US10934678B2Publication Date: 2021-03-02
- Inventor: Carl Dekle , Scott Slaughter , Robert Forsythe , Raja Madhyannapu , Firouz Rosti
- Applicant: APTIM INTELLECTUAL PROPERTY HOLDINGS, LLC
- Applicant Address: US LA Baton Rouge
- Assignee: APTIM INTELLECTUAL PROPERTY HOLDINGS, LLC
- Current Assignee: APTIM INTELLECTUAL PROPERTY HOLDINGS, LLC
- Current Assignee Address: US LA Baton Rouge
- Agency: AdamsIP, LLC
- Agent J. Hunter Adams; Stephen Thompson
- International Application: PCT/US2019/020122 WO 20190228
- International Announcement: WO2019/169180 WO 20190906
- Main IPC: E02D5/46
- IPC: E02D5/46 ; E02D5/28 ; E02D5/52 ; E02D5/80 ; E02D5/56

Abstract:
A grouting module may include a lower surface configured for connection to a screw pile component, an upper surface configured for connection to an upper hollow pile shaft, a body disposed between the upper surface and the lower surface, and an axial bore through the upper surface and at least a portion of the body. The body may include a flange configured to create an annular space around the upper adapter and one or more flow injection conduits configured for injecting grout received from the upper hollow pile shaft through the axial bore extension into the annular space while the pile is advanced downward into a substrate. Once the final pile tip elevation is reached, the pile extensions above the grouting module are counter-rotated slightly to realign the ports in the grouting module from side to bottom discharge and allow post-grouting of the lead pile extension.
Public/Granted literature
- US20210017728A1 PRESSURE GROUTED DISPLACEMENT SCREW PILES Public/Granted day:2021-01-21
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