Disclosed is a multiple friction joint pile connection construction system to construct: shallow and deep foundations for structures, tie beam construction between footings, passive piles to prevent slope failures beam on elastic foundation, pile cap and tie beam in the construction of pile groups, load transfer platforms isolated (not connected) from the upper structure, retaining structure when constructed with vertical and horizontal orientation, vertical and horizontal drain when perforated blocks are used, landing pier, quay wall and platform construction for coastal and harbor structures, by anchoring to the upper section of the existing bored piles, by anchoring to the upper sections of the columns of the upper structure, in railroad tie manufacture, in transportation structures and in all kinds of similar geotechnical applications.

Disclosed is a multiple friction joint pile connection construction system to construct: shallow and deep foundations for structures, tie beam construction between footings, passive piles to prevent slope failures beam on elastic foundation, pile cap and tie beam in the construction of pile groups, load transfer platforms isolated (not connected) from the upper structure, retaining structure when constructed with vertical and horizontal orientation, vertical and horizontal drain when perforated blocks are used, landing pier, quay wall and platform construction for coastal and harbor structures, by anchoring to the upper section of the existing bored piles, by anchoring to the upper sections of the columns of the upper structure, in railroad tie manufacture, in transportation structures and in all kinds of similar geotechnical applications.

Disclosed is a pile connection with an open collar section. The pile connection includes a collar configured to attach to an elongated beam extending along a beam axis, the collar comprising a primary collar section defining a gap, the primary collar section configured to partially surround the elongated beam. The pile connection further includes a first pile sleeve comprising a first inlet, a first outlet, and a first outer surface extending therebetween, at least a portion of the first outer surface attached to the primary collar section, the first pile sleeve configured to receive a first pile.

The present invention relates to a method and a system for making prefabricated foundations ready to be driven into the ground, these foundations have the fundamental characteristic of increasing the size of the reacting pressure “bulb” in the ground compared to the currently known fixed foundations, in fact, compared to a traditional foundation fixed in the ground, in which the area of the foundation section is constant, the present invention allows to increase this area by increasing it during the insertion of the foundation itself.

A modular foundation support system includes modular foundation support components including self-aligning and torque transmitting coupler features wherein a plurality of\elongated ribs are aligned with a plurality of elongated grooves to rotationally interlock the modular foundation support components to one another.

A coupling device includes male and female couplings having first and second circumferential grooves on surfaces of the respective couplings that face each other when the couplings are fitted together. The coupling device further includes an engaging member. When the male coupling is pushed into the female coupling, the engaging member is retracted into the second groove, allowing the male coupling to be inserted into the female coupling, and when the couplings are fitted together, the engaging member is pushed into the first groove by coil springs so as to be fitted into both of the groove, thereby preventing separation of the male and female couplings in the axial direction. Countersunk head screws support respective divided pieces of the engaging member. Slotted head setscrews are screwed in at boundaries between the adjacent divided pieces to press the divided pieces against the bottom of the first groove.

A coupler for a helical pile system is described. The coupler includes at least two sections of square tube. A first section is nested within and affixed to the second section. The first section may further include an inner width by which the first section is configured to receive two pieces of rectangular bar stocks of a helical pile system. The at least two sections each include at least two pairs of aligned through holes, for receiving first and second bolts. By the first bolt and second bolts, the two pieces of rectangular bar stock may be coupled. The first section may thus transfer torsion between the two pieces of rectangular bar stock, such as when screwing the helical pile system into the earth.

The portable mechanically assembled ground fixation stake device is applied to the engineering of treating land earthwork, water-based desilting, excavating materials, moving, land, underwater heavy objects, civil engineering, harbor, river, lake construction and the like, and is characterized in that the whole device is fixed only by the action of the working tensile force itself. The whole device has six stake columns 2a, 2b, 4a,4b, 9, 1) arranged on the ground, wherein four constituent brackets (2a, 2b, 4a, 4b) are supported on the ground. The top ends of the four supports are mounted on the shaft (6), and a cuboid rigid block (15) is mounted in the middle of the shaft (6). When the system is subjected to pulling force, the cuboid rigid block (15) rotates around the central shaft (6), and due to the opposite movement direction of the two end points of the cuboid rigid block (6), the tension conversion direction of the system forms an inclined downward pressure, so that the protective stake (9) is subjected to pressure at the same time from the pressure rod (7), and due to the fact that the tensile force and the pressure are synchronized, the greater the tension force is also increased, so that the whole device achieves the effect of fixing the stake. The device is light in weight and convenient to carry, and can be mounted and disassembled anywhere.

A system for joining two separate spun piles by interlocking together a top end plate located at a bottom end of a first spun pile to a bottom end plate located at a top end of a second spun pile, wherein the end plates each have a plurality of segments comprising an equal number of segmental protrusions and segmental recesses.

Disclosed is a multiple friction joint pile connection construction system to construct: shallow and deep foundations for structures, tie beam construction between footings, passive piles to prevent slope failures beam on elastic foundation, pile cap and tie beam in the construction of pile groups, load transfer platforms isolated (not connected) from the upper structure, retaining structure when constructed with vertical and horizontal orientation, vertical and horizontal drain when perforated blocks are used, landing pier, quay wall and platform construction for coastal and harbor structures, by anchoring to the upper section of the existing bored piles, by anchoring to the upper sections of the columns of the upper structure, in railroad tie manufacture, in transportation structures and in all kinds of similar geotechnical applications.