Patent ID: 8240957
Filing Date: 2012-08-14
Classification: E02D

Abstract:
1. A method of preparing ground to place piles therein, said method comprising: screwing an anchor assembly comprising a helical screw anchor, an extension shaft coupled to the helical screw anchor, a reducer section having a plurality of pin holes disposed around its periphery into the ground to a predetermined depth; disposing removable coupler apparatus comprising a rotatable longitudinal shaft that is coupled to a plurality of slidable pins that are slidable through the pin holes in the anchor assembly and orienting it so that the pins are aligned with the pin holes; rotating the longitudinal shaft to slide the pins through the pin holes and secure the removable coupler apparatus to the anchor assembly; attaching a shaft section to the longitudinal shaft and attaching a pipe section to the removable coupler apparatus; applying torque to the pipe section to cause the anchor assembly and removable coupler apparatus to be pulled into the ground to a desired depth; and rotating the longitudinal shaft to slide the pins out of the pin holes to release the removable coupler apparatus and pipe section from the helical anchor, which is left in the ground.