US Pat. No. 9,091,036

EXTENSIBLE SHELLS AND RELATED METHODS FOR CONSTRUCTING A SUPPORT PIER

GEOPIER FOUNDATION COMPAN...

1. An extensible shell for constructing a support pier in ground, the extensible shell defining an interior for holding granular
construction material and defining an opening for receiving the granular construction material into the interior, wherein
the shell is flexible such that the shell expands laterally outward when granular construction material is compacted in the
interior of the shell.

US Pat. No. 9,169,611

METHOD AND APPARATUS FOR BUILDING SUPPORT PIERS FROM ONE OR MORE SUCCESSIVE LIFTS FORMED IN A SOIL MATRIX

GEOPIER FOUNDATION COMPAN...

15. A method for forming an aggregate pier in a matrix soil comprising the steps of:
(a) forming an elongate cavity having a bottom and a longitudinal axis in a matrix soil by positioning a hollow tube with
a bulbous bottom head element into the matrix soil to a predetermined depth, said bottom head element having a bulbous shape
with a maximum cross sectional area greater than the attached hollow tube adjacent thereto, said bottom head element configured
to impart axial and transaxial forces on the matrix soil and on discharged materials and having an extreme bottom end discharge
opening with a cover plate, said bottom head element comprising a leading edge tapered upwardly and outwardly from the extreme
bottom end, a trailing edge tapered downwardly and outwardly at a top thereof at the connection between the bottom head element
and the tube, and having a length between the leading edge and the trailing edge of at least one times the head element diameter;

(b) raising the hollow tube an incremental distance from the bottom of the cavity;
(c) opening the bottom discharge opening and feeding pier forming material through the hollow tube into the cavity upon raising
of the hollow tube; and

(d) vertically compacting the pier forming material with the head element by driving the hollow tube and head element downwardly
toward the bottom of the cavity while displacing a portion of the pier forming material transaxially in the cavity.

US Pat. No. 9,243,379

METHOD OF PROVIDING A SUPPORT COLUMN

Geopier Foundation Compan...

1. A method of forming an aggregate pier comprising the steps of:
(a) driving downwardly into pier site soil a mandrel having an open lower end initially covered by a cap to form a cavity
to a desired depth for said aggregate pier while supporting a sidewall of the cavity, wherein the mandrel is tapered along
a substantial portion of its length;

(b) moving the mandrel upwardly towards a top of said cavity so as to separate said cap from said open end of the mandrel
while delivering loose aggregate through said open end of the mandrel and depositing said delivered aggregate to the cavity
so as to support said sidewall below said upwardly moved mandrel;

(c) using the mandrel and one or more new caps to repeat said steps (a) and (b) at one or more different portions of the pier
site so as to form a plurality of said aggregate deposited cavities;

(d) driving downwardly into one of the plurality of said aggregate deposited cavities the mandrel so that said lower end of
the mandrel compacts said deposited aggregate and densifies said soil;

(e) moving said mandrel upwardly from said compacted aggregate and depositing additional loose aggregate in said one of the
plurality of cavities; and

(f) repeating said steps (d) and (e) at each of said plurality of aggregate deposited cavities until a plurality of pier components
of a desired height is formed.

US Pat. No. 9,567,723

OPEN-END EXTENSIBLE SHELLS AND RELATED METHODS FOR CONSTRUCTING A SUPPORT PIER

GEOPIER FOUNDATION COMPAN...

1. A method for constructing a support pier in ground, the method comprising:
(a) positioning an extensible shell into ground, the shell defining an interior for holding granular construction material
and defining a first opening at a first end for receiving the granular construction material into the interior and defining
a second opening at an opposing second end, wherein the shell is flexible such that the shell expands when granular construction
material is compacted in the interior of the shell;

(b) filling at least a portion of the interior of the shell with the granular construction material; and
(c) compacting the granular construction material in the interior of the shell to form a support pier.

US Pat. No. 9,869,070

SOIL REINFORCEMENT SYSTEM INCLUDING ANGLED SOIL REINFORCEMENT ELEMENTS TO RESIST SEISMIC SHEAR FORCES AND METHODS OF MAKING SAME

GEOPIER FOUNDATION COMPAN...

1. A method of installing an array of non-vertical soil reinforcement elements to absorb seismic shear stresses in a soil
matrix, comprising inserting an array of non-vertical soil reinforcement elements into a soil matrix at a determined angle
and to a determined depth, wherein each of the soil reinforcement elements of the array of non-vertical soil reinforcement
elements comprises a material that exhibits a stiffness modulus greater than the stiffness modulus of the soil matrix and
wherein seismic shear stresses imparted from seismic activity are absorbed by the array of non-vertical soil reinforcement
elements, thus reducing a potential for soil liquefaction, wherein the soil reinforcement elements are spaced from each other
such that none of the non-vertical soil reinforcement elements within the array are in direct contact with another non-vertical
soil reinforcement element within the array.

US Pat. No. 9,512,586

SOIL DENSIFICATION SYSTEM AND METHOD

GEOPIER FOUNDATION COMPAN...

1. A method of densification of a soil mass, comprising:
a. providing an apparatus for controlled air soil densification, comprising:
1) a primary tube having an upper portion and a lower end portion;
2) one or more ports formed in the primary tube at the lower end portion; and
3) a pressurized air system connected to the primary tube, wherein the pressurized air system further comprises a stored volume
of air connected to an air source, the pressurized air system configured to deliver controlled air bursts into the primary
tube and configured to deliver controlled air bursts into the soil mass;

b. inserting the end portion of the primary tube to a desired soil treatment level depth in the soil mass;
c. releasing an air impulse at the one or more ports to form a void surrounded by a zone of densification;
d. maintaining the lower end portion of the primary tube at the desired soil treatment level depth in the soil mass while
releasing the air impulse;

e. filling the void in the soil mass created by the air impulse at the one or more ports with flowable media via the primary
tube.

US Pat. No. 10,094,087

METHOD AND APPARATUS FOR STABILIZING SLOPES AND EMBANKMENTS WITH SOIL LOAD TRANSFER PLATES

GEOPIER FOUNDATION COMPAN...

58. A soil load transfer element comprising:a. a load transfer pile-comprising a vertical axis, an upper portion, and a lower portion;
b. two or more upper plates each vertically coupled along the vertical axis of the load transfer pile at the upper portion, wherein each of the two or more upper plates are longitudinally spaced a distance from each other along the load transfer pile and wherein an L-axis of the two or more upper plates is parallel to the vertical axis of the load transfer pile; and
c. one or more lower plates coupled to the lower portion of the load transfer pile.

US Pat. No. 9,637,882

METHOD AND APPARATUS FOR MAKING AN EXPANDED BASE PIER

GEOPIER FOUNDATION COMPAN...

1. A method of constructing an expanded base pier with known expanded base volume, the method comprising:
(a) providing a mandrel assembly comprising a single-wall tube portion and a tamper head, the tube portion having an exterior
diameter, wherein the tube portion is connected to the tamper head at an opening thereof for allowing flowable material to
flow into the tamper head, and wherein the tamper head comprises a defined lower enlarged chamber having an interior diameter
greater than the exterior diameter of the tube portion and further comprising a reducing surface at an upper portion thereof
and comprising a plurality of chain links for compaction and for restricting upward flow of the flowable material into the
tube portion during tamping, the tamper head further sized to provide an enclosed region for allowing the flowable material
to be placed therein;

(b) providing a non-moveable sealed top plate on an end of the tube portion opposite the tamper head and a separate flowable
material supply tube coupled to the tube portion via a sealed connection;

(c) providing a pressure gauge for monitoring air pressure within the tube portion;
(d) driving the mandrel assembly having an initial volume of the flowable material into a ground surface to a given depth
thereby forming a cavity;

(e) lifting the mandrel assembly to release the initial volume of the flowable material from the tamper head into a bottom
of the cavity while adding a secondary volume of flowable material;

(f) re-driving the mandrel assembly wherein the plurality of chain compact the initial and secondary volumes of flowable material
at a bottom of the cavity and to form a unitary expanded base, the expanded base having a width greater than the width of
the tamper head;

(g) measuring air pressure within the tube portion during the driving, lifting, and re-driving steps to determine a pressure
drop indication;

(h) calculating a unitary expanded base volume based on the pressure drop indication and initial and secondary volumes added
for comparison with a design expanded base volume; and

(i) upon reaching the design expanded base volume, withdrawing the mandrel assembly while continuously discharging cementitious
material from the tamper head, thereby forming, after curing, a stiff cementitious inclusion having a width substantially
equal to the width of the cavity and being formed above the expanded base.

US Pat. No. 9,915,050

APPARATUS AND METHOD FOR GROUND IMPROVEMENT

GEOPIER FOUNDATION COMPAN...

1. A device for ground improvement, comprising:
a. a top plate having a first surface configured for having a driving device attached thereto to provide impact thereon;
b. a plurality of vertically extending tines attached to a second surface of the top plate opposite the first surface of the
top plate, and horizontally spaced from each other at upper lateral edges thereof, for being driven into a ground surface,
wherein the tines have a length of at least three and a half (3.5) feet and comprise a length to spacing (L/S) ratio of greater
than two (2), wherein length (L) is the length of the tines and spacing (S) is the spacing between the tines on a tine center-to-center
basis;

c. an arrangement of ridges extending horizontally from an outer surface of the tines and vertically spaced from one another
along the length of the tines; and

d. the tines being shaped, spaced, and oriented relative to each other in a manner to achieve displacement of ground material
downward and radially outward.

US Pat. No. 9,702,107

METHODS AND APPARATUSES FOR COMPACTING SOIL AND GRANULAR MATERIALS

GEOPIER FOUNDATION COMPAN...

1. An apparatus for densifying and compacting granular materials comprising a closed end drive shaft having a first diameter
and one or more diametric expansion elements wherein the one or more diametric expansion elements, in their expanded state,
form compaction surfaces having a second diameter greater than the first diameter of the drive shaft and wherein the one or
more diametric expansion elements are configured and sized accordingly to achieve desired lift thickness, compaction surface
area, and/or soil flow based on material type and/or project requirements.

US Pat. No. 10,094,089

SOIL IMPROVEMENT FOUNDATION ISOLATION AND LOAD SPREADING SYSTEMS AND METHODS

GEOPIER FOUNDATION COMPAN...

9. A method for reducing shear load transfer, the method comprising:placing at least one ground improvement element into the ground;
positioning at least one shear break element having a low interface shear strength above the at least one ground improvement element, wherein the at least one shear break element comprises a plastic material;
positioning a structural foundation above the at least one shear break element; and
positioning a granular bedding material between the at least one ground improvement element and the at least one shear break element.

US Pat. No. 10,655,294

APPARATUSES FOR CONSTRUCTING DISPLACEMENT AGGREGATE PIERS

GEOPIER FOUNDATION COMPAN...

11. A method of constructing aggregate piers, the method comprising the steps of:a) providing a mandrel, the mandrel comprising an upper feed tube portion, a tamper head, at least one hydrojet nozzle on the lower edge of the tamper head, wherein each hydrojet nozzle is entirely disposed at an angle ranging between 10 and 80 degrees from horizontal and a passage extending therethrough for feeding aggregate through the feed tube to the tamper head, wherein the tamper head comprises a plurality of unbiased cutting teeth on a lower edge of the tamper head opposite the feed tube and surrounding a perimeter of the tamper head edge, and wherein the cutting teeth have a flat bottom that ranges in width from 0.5 inches (1.2 cm) to 6 inches (15.2 cm) and ranges in depth from 0.25 inches (0.6 cm) to 6 inches (15.2 cm);
b) driving the mandrel in a vertical motion into free-field soils to a specified depth;
c) lifting the mandrel a specified distance;
d) repeating the driving and lifting of the mandrel; and
e) adding aggregate to form the pier.

US Pat. No. 10,501,893

SYSTEM FOR AND METHOD OF STABILIZING RAIL TRACK STRUCTURES USING A LOAD TRANSFER APPARATUS

Geopier Foundation Compan...

1. A system for stabilizing railroad ties and rails, the system comprising:a) a vertical load transfer element; and
b) a top load transfer element, comprising one of
i) helical flights attached to an upper portion of the vertical load transfer element,
ii) a load transfer cap attached to an upper portion of the vertical load transfer element wherein the load transfer cap further comprises an upwardly projecting lip around a perimeter thereof for acting as a lateral restraint, or
iii) two or more support legs each with a top support attached thereto;
wherein the vertical load transfer element and top load transfer element transfer the load applied to the railroad ties and rails to less compressible underlying soils.

US Pat. No. 10,465,356

SOIL IMPROVEMENT FOUNDATION ISOLATION AND LOAD SPREADING SYSTEMS AND METHODS

GEOPIER FOUNDATION COMPAN...

19. A method for reducing shear load transfer, the method comprising:placing at least one ground improvement element into the ground;
positioning two or more shear break elements above the at least one ground improvement element, wherein the two or more break elements are configured to have low interface shear strength and are formed of one shear break element comprising a first material and one shear break element comprising a second material differing from the first material;
positioning a structural foundation above the two or more shear break elements; and
placing a granular bedding material between the at least one ground improvement element and the two or more shear break elements.

US Pat. No. 10,513,831

OPEN-END EXTENSIBLE SHELLS AND RELATED METHODS FOR CONSTRUCTING A SUPPORT PIER

Geopier Foundation Compan...

1. An extensible shell system for constructing a support pier in ground, comprising:an extensible shell defining an interior for holding granular construction material and defining a first, uncapped end having a first opening therethrough, transverse to and through which a centerline of the shell passes, and an opposing second end having a second opening therethrough, transverse to and through which the centerline passes, for receiving the granular construction material into the interior, wherein the shell is flexible such that the shell expands laterally outward when granular construction material is compacted in the interior of the shell and wherein the shell is a single continuous piece; and,
a mandrel of a diameter smaller than an inner diameter of the shell, such that the mandrel is insertable through the first, uncapped end of the shell during support pier construction, and provided with a shoulder collar of greater diameter than the shell such that the shoulder collar is configured to contact the second end of the shell upon insertion of the mandrel into the shell and wherein the position of the collar is adjustable along the length of the mandrel.