Soil displacement pile assembly and method of forming foundation pile

Abstract

A soil displacement pile includes a lead shaft having a lead end and a lead head. A lead soil displacement assembly is connected to the lead shaft. The lead soil displacement assembly includes a helical plate and a canister. The helical plate extends at least partially around the lead shaft. The canister includes an outer wall extending around the lead shaft defining an interior and an opening in the outer wall to permit the ingress of soil.

What is claimed: 
     
         1 . A soil displacement pile comprising:
 a lead shaft having a lead end and a lead head;   a lead soil displacement assembly connected to the lead shaft, the lead soil displacement assembly including a helical plate and a canister,   wherein the helical plate extends at least partially around the lead shaft, and   wherein the canister includes an outer wall extending around the lead shaft defining an interior and an opening in the outer wall to permit the ingress of soil.   
     
     
         2 . The soil displacement pile of  claim 1 , wherein a divider is positioned in the canister to separate the interior between an upper section and a lower section. 
     
     
         3 . The soil displacement pile of  claim 2 , wherein the canister includes an open top in communication with the upper section. 
     
     
         4 . The soil displacement pile of  claim 1 , wherein the helical plate includes a first end and a second end, and the canister opening extends between the first end and the second end. 
     
     
         5 . The soil displacement pile of  claim 1 , wherein the canister is cylindrical. 
     
     
         6 . The soil displacement pile of  claim 1 , wherein the lead shaft has a hollow cylindrical configuration. 
     
     
         7 . The soil displacement pile of  claim 1 , further comprising an extension shaft connected to the lead shaft. and an extension soil displacement assembly connected to the extension shaft. 
     
     
         8 . The soil displacement pile of  claim 7 , wherein the extension shaft includes an extensions soil displacement assembly connected to the extensions shaft. 
     
     
         9 . The soil displacement pile of  claim 8 , wherein the extension soil displacement assembly includes an extension canister defining a second interior and wherein the extensions canister includes an open top in communication with the second interior. 
     
     
         10 . A soil displacement pile comprising:
 a lead shaft having a lead end and a lead head;   a lead soil displacement assembly connected to the lead shaft, the lead soil displacement assembly including a helical plate and a canister,   wherein the helical plate extends at least partially around the lead shaft, and   wherein the canister includes an outer wall extending around the lead shaft defining an interior and a divider plate is positioned in the canister to separate the interior into an upper section and a lower section.   
     
     
         11 . The soil displacement pile of  claim 10 , wherein the canister includes an open top in communication with the upper section. 
     
     
         12 . The soil displacement pile of  claim 10 , wherein the canister includes an opening in the outer wall to permit the ingress of soil into the lower section. 
     
     
         13 . The soil displacement pile of  claim 12 , wherein the helical plate includes a first end and a second end, and the canister opening extends between the first end and the second end. 
     
     
         14 . The soil displacement pile of  claim 10 , wherein the helical plate has a first outer diameter and the canister has a second outer diameter less than the first outer diameter. 
     
     
         15 . The soil displacement pile of  claim 10 , wherein the canister extends above the helical plate toward the lead head. 
     
     
         16 . The soil displacement pile of  claim 10 , further comprising an extension shaft connected to the lead shaft and an extension soil displacement assembly connected to the extension shaft. 
     
     
         17 . The soil displacement pile of  claim 16 , wherein the extension soil displacement assembly includes an extension canister defining a second interior and wherein the extensions canister includes an open top in communication with the second interior. 
     
     
         18 . The soil displacement pile of  claim 16 , wherein an upper plate is connected to the extension shaft. 
     
     
         19 . A method of forming a composite pile column comprising:
 positioning a lead shaft for ground insertion, the lead shaft having a lead end, a lead head, and a lead soil displacement assembly, wherein the lead soil displacement assembly includes a helical plate and a canister having an open top;   rotating the lead shaft and lead soil displacement assembly to rotate the helical plate and canister and cause displacement of soil;   forming a cavity in the ground by displacement of soil by the lead shaft and lead soil displacement assembly;   inserting filler into the cavity, wherein at least a portion of the filler is introduced into the canister through the open top.   
     
     
         20 . The method of claim  20 , further comprising connecting an extension shaft to the lead shaft and rotating the extension shaft and lead shaft to insert the extension shaft into the cavity.