Patent ID: 7090437

Claim:
A modular helical anchor assembly for use in a geotechnical support system comprising: a first anchor section and a second anchor section each having an upper end, a lower end, a helical plate attached thereto between said upper end and said lower end, an upper through aperture adjacent said upper end and a lower through aperture adjacent said lower end; a shaft section without a helical plate and having an upper end, a lower end, an upper through aperture adjacent said upper end and a lower through aperture formed adjacent said lower end, said first and second anchor sections being formed of one of a tubular stock and a bar stock and said shaft section being formed of another of the tubular stock and the bar stock; fastening means releasably attaching said first and second anchor sections to said shaft section, said fastener means including a first fastener engaging said lower through aperture of said first anchor section and said upper through aperture of said shaft section and a second fastener engaging said upper through aperture of said second anchor section and said lower through aperture of said shaft section, whereby a portion of said shaft section is exposed between said first and second anchor sections and a spacing between said helical plates can be selected by providing said shaft section with an associated predetermined length; and a lower shaft section without a helical plate, said lower shaft section having an upper end, a pointed lower end and an upper through aperture adjacent said upper end, and wherein said fastening means includes a third fastener engaging said lower through aperture of said second anchor section and said upper through aperture of said lower shaft section.