Deep soil mixing equipment and method

Abstract

This invention relates generally to mixing deep soil with a ground or floating based rig system with a single or multi-axial system. In one example embodiment methods, apparatus, and systems are described for deep soil mixing tools or rigs with a rotary axial design, namely with more than one axial mixing elements and associated structures, such that a purpose may be to provide for ground modification improvement.

What is claimed is: 
     
         1 . A ground modification system comprising:
 an axial system, with at least one axial, wherein each axial comprises of at least one section, wherein:
 at least one high torque motor provides motion to at least one axial, 
 each axial bores at least one bore of any depth/diameter, 
 each axial has at least a top section, a middle section and a bottom section, wherein at least:
 the top section excavates soil and connects to the at least one motor, 
 the middle section excavates soil and supports the axials to an external structure through a mounting system, 
 the bottom section is comprised of a bit section, wherein the bit section includes at least one blade and at least one cutting head, 
 
   at least one external structure, wherein:
 the external structure communicatively supports the axial system in relation to a surface plane via the mounting system, 
 the axial system is housed on the external structure comprised of at least one physical support and at least one control connection to the axial system, 
 the mounting system allows the axials to move. 
   
     
     
         2 . A ground modification system as in  claim 1 , wherein,
 at least one motor rotates at least one axial.   
     
     
         3 . A ground modification system as in  claim 1 , wherein,
 at least one motor is electric.   
     
     
         4 . A ground modification system as in  claim 1 , wherein:
 at least one axial is hollow to allow a solidification material to be flowed through each axial.   
     
     
         5 . A ground modification system as in  claim 4 , wherein:
 there is at least one port/outlet at any point along the length of the axial to allow for the solidification material to be injected into the bore.   
     
     
         6 . A ground modification system as in  claim 5 , wherein:
 the solidification material is introduced under pressure wherein the material will flow out of the axial and into the bore.   
     
     
         7 . A ground modification system as in  claim 1 , wherein:
 at least one section of the axial forms an auger screw design to excavate soil out of the bore.   
     
     
         8 . A ground modification system as in  claim 1 , wherein:
 the mounting system contains a friction reducing device that allow the axials to rotate without interference from the mounting system.   
     
     
         9 . A ground modification system as in  claim 8 , wherein:
 the mounting system can be at any length of the axial.   
     
     
         10 . A ground modification system as in  claim 1 , wherein:
 the bottom bit section includes at least one subsection, wherein the subsections couple together through corresponding extrusions and recesses, and transfer force.   
     
     
         11 . A ground modification system as in  claim 1 , wherein:
 at least one blade in the bit section allows for the cutting and excavating of soil and mixing of the solidification material.   
     
     
         12 . A ground modification system as in  claim 11 , wherein:
 at least one blade in the bit section contains at least one extrusion which further aids in the cutting and excavating of soil and mixing of the solidification material.   
     
     
         13 . A ground modification system as in  claim 1 , wherein:
 the external system is moveable.   
     
     
         14 . A ground modification system as in  claim 1 , wherein:
 the external system is a land based crane/vehicle or a water based vessel.   
     
     
         15 . A ground modification system as in  claim 1 , wherein:
 the bores overlap, wherein:
 overlapping axials and sections do not interfere with each other. 
   
     
     
         16 . A ground modification system comprising:
 an axial system, with at least four axials, wherein each axial comprises of at least one section, wherein:
 at least four high torque electric motors or hydraulic motorsrotateat least four axials, 
 each axial bores at least one bore of any depth/diameter 
 each axial is hollow with at least one port/outlet at any point along the length of the axial to allow for a solidification material to be injected into the bore under pressure, 
 each axial has at least a top section, a middle section and a bottom section, wherein at least:
 the top section excavates soil via an auger screw design and connects to at least one electric motor, 
 the middle section excavates soil and supports the axials to an external structure through a mounting system, 
 the bottom section is comprised of a bit section, wherein the bit section includes at least one blade and at least one cutting head, and wherein the bottom section includes at least one subsection, wherein:
 the subsections couple together through corresponding extrusions and recesses and transfer force, 
 at least one support allows the adjacent axials to be connected, 
 
 
   at least one external structure, wherein:
 the external structure communicatively supports the axial system in relation to a surface plane via the mounting system, 
 the axial system is housed on the external structure comprised of at least one physical support and at least one control connection to the axial system, 
 the mounting system allows the axials to rotate via a friction limiting device, 
 the external structure is a movable land based crane/vehicle or water based vessel. 
   
     
     
         17 . A ground modification system as in  claim 16 , wherein:
 the diameter of axial bores is greater than 3.5 feet.   
     
     
         18 . A ground modification system as in  claim 1 , wherein:
 at least one blade in the bit section allows for the cutting and excavating of soil and mixing of the solidification material.   
     
     
         19 . A ground modification system as in  claim 11 , wherein:
 at least one blade in the bit section contains at least one extrusion which further aids in the cutting and excavating of soil and mixing of the solidification material.   
     
     
         20 . A ground modification system as in  claim 1 , wherein:
 the bores overlap, wherein:
 overlapping axials and sections do not interfere with each other.