A load support system includes an elongate support member having a first diameter and a first end and a second end. The elongate support member includes, toward the first end, a first portion for direct earth burial and further includes, toward the second end, a second portion to which the load can be coupled. The first portion has a first length. The system additionally includes a lateral support having a second diameter greater than the first diameter and a second length less than the first length. The lateral support is mounted about the first portion of the elongate support member. The lateral support includes a first opening formed therein at a first location relative to a long axis of the elongate support member and a second opening formed therein at a different second location relative to the long axis in order to support a range of embedment depths.

Various examples are provided related to compression spacers which can be utilized in the construction of, e.g., a micropile or drilled shaft. In one example, a high-capacity compression spacer includes a grout vessel body including: a grout receiving portion defined by a bottom of the grout vessel body and a portion of a sidewall of the grout vessel body; a bar receiving portion extending from the grout receiving portion to a lip defining an opening of the grout vessel body; and a plurality of tie wire insertion holes distributed about the bar receiving portion. Each of the plurality of tie wire insertion holes can be configured for insertion of a tie wire. The grout vessel body can be a single piece, molded body. The grout receiving portion can be filled with a high-strength, non-expanding grout or concrete.

Various examples are provided related to compression spacers which can be utilized in the construction of, e.g., a micropile or drilled shaft. In one example, a high-capacity compression spacer includes a grout vessel body including: a grout receiving portion defined by a bottom of the grout vessel body and a portion of a sidewall of the grout vessel body; a bar receiving portion extending from the grout receiving portion to a lip defining an opening of the grout vessel body; and a plurality of tie wire insertion holes distributed about the bar receiving portion. Each of the plurality of tie wire insertion holes can be configured for insertion of a tie wire. The grout vessel body can be a single piece, molded body. The grout receiving portion can be filled with a high-strength, non-expanding grout or concrete.

A machine for driving a pair of screw anchors at substantially the same time. An attachment supports a pair of independent drive assemblies. Each assembly consists of a rotary driver and tool driver that moves along respective driving arms to independently drive a pair of screw anchors into supporting ground at different angles. Each assembly may move with respect to the machine independently to drive anchors into the ground in overlapping time, or both may rotate at once to drive anchors into the ground sequentially.

The friction pile system may include a steel pipe column, an auger spiraled around its exterior surface, a helical plate near the tip, and small structural elements located around the helix. A plurality of perforations may be provided on the pipe wall. The method of installation includes screwing the pipe assembly down into the ground by rotating it with a drivehead and simultaneously pressure injecting cement grout inside the pipe. The structural elements including weld beads maintain the bore hole created by the rotating helix and also guide grout to flow out though the perforations and upward along the auger while spreading outward filling in the hole. Thus the engineered pipe assembly leverages the mechanical energy of drilling to pressurize grout upward and outward improving bond with soil yielding high pile capacity.

The friction pile system may include a steel pipe column, an auger spiraled around its exterior surface, a helical plate near the tip, and small structural elements located around the helix. A plurality of perforations may be provided on the pipe wall. The method of installation includes screwing the pipe assembly down into the ground by rotating it with a drivehead and simultaneously pressure injecting cement grout inside the pipe. The structural elements including weld beads maintain the bore hole created by the rotating helix and also guide grout to flow out though the perforations and upward along the auger while spreading outward filling in the hole. Thus the engineered pipe assembly leverages the mechanical energy of drilling to pressurize grout upward and outward improving bond with soil yielding high pile capacity.

A recyclable pile foundation is provided. The recyclable pile foundation includes several inner cylinders, several outer cylinders and several reciprocating components which are circumferentially distributed between the inner cylinders and the outer cylinders. Each reciprocating component includes several steel collars, a push-pull rod, a hold component and at least one motion component. The motion components are distributed along the push-pull rod. Each motion component includes at least one triangular connection plate, several connection rods, an inner wedge block, an outer wedge block, a motion block and a pointed rod. When the push-pull rod is pushed along its own axis to the pushed position, the pointed rod protrudes from the outer cylinders to increases the friction between the surrounding soil and the recyclable pile foundation. When the push-poll rod is pulled along its own axis to the pulled position, the pointed rods retract back into the outer cylinders.

A recyclable pile foundation is provided. The recyclable pile foundation includes several inner cylinders, several outer cylinders and several reciprocating components which are circumferentially distributed between the inner cylinders and the outer cylinders. Each reciprocating component includes several steel collars, a push-pull rod, a hold component and at least one motion component. The motion components are distributed along the push-pull rod. Each motion component includes at least one triangular connection plate, several connection rods, an inner wedge block, an outer wedge block, a motion block and a pointed rod. When the push-pull rod is pushed along its own axis to the pushed position, the pointed rod protrudes from the outer cylinders to increases the friction between the surrounding soil and the recyclable pile foundation. When the push-poll rod is pulled along its own axis to the pulled position, the pointed rods retract back into the outer cylinders.

A pile guide has a collar with a void therein. A planar flange extends from a side of the collar. A first guide and a second guide form opposing guides constructed and arranged for receiving the planar flange of the pile guide therein. The planar flange is in a slidable relationship within the opposing guides, and the bracket is constructed and arranged for mounting to a dock. The opposing guides pivot relative to the dock during installation and allow pivoting of the pile guide relative to the dock or other mounting. The distance and angle of the collar relative to the dock or other mounting can be adjusted to accommodate for positioning of pile guides due to positioning of piles relative to a dock or other structure.

A recyclable pile foundation is provided. The recyclable pile foundation includes several inner cylinders, several outer cylinders and several reciprocating components which are circumferentially distributed between the inner cylinders and the outer cylinders. Each reciprocating component includes several steel collars, a push-pull rod, a hold component and at least one motion component. The motion components are distributed along the push-pull rod. Each motion component includes at least one triangular connection plate, several connection rods, an inner wedge block, an outer wedge block, a motion block and a pointed rod. When the push-pull rod is pushed along its own axis to the pushed position, the pointed rod protrudes from the outer cylinders to increases the friction between the surrounding soil and the recyclable pile foundation. When the push-poll rod is pulled along its own axis to the pulled position, the pointed rods retract back into the outer cylinders.