A head for a column-type foundation is adjustable with respect to its foundation. A top member has a support member for mating with and securing a leg of a structure and a central aperture for receiving an anchor rod of the column-type foundation. A sidewall casing extends downwardly from the top member and at least three positioning members engage the foundation. A seal is located on an inside of the sidewall casing near a bottom of the sidewall casing. The head is filled with a settable material when connected to the foundation.

A head for a column-type foundation is adjustable with respect to its foundation. A top member has a support member for mating with and securing a leg of a structure and a central aperture for receiving an anchor rod of the column-type foundation. A sidewall casing extends downwardly from the top member and at least three positioning members engage the foundation. A seal is located on an inside of the sidewall casing near a bottom of the sidewall casing. The head is filled with a settable material when connected to the foundation.

Soil inclusions (30) comprising an elongated, cured cementitious columnar body (72) are located within the soil (32) and include a tubular perforate structural reinforcement (56a, 56b) embedded within the body (72), with portions of the body exuded through the perforations (57) of the structural reinforcement (56a, 56b). The inclusions (30) are formed by driving a tubular mandrel (44) through vibratory means into the soil (32), with a flexible, tubular, perforate reinforcement (56a, 56b) about the exterior surface of the mandrel (44). When the mandrel (44) is fully driven, it is withdrawn, and simultaneously cementitious material (70) is injected into the mandrel (44). The material (70) exudes through the perforations (57) to complete the inclusion (30), which is deformation compliant. The inclusions may be installed in vertical or non-vertical orientations.

A bearing pile including a plurality of connected corrugated steel shells inserted into a subsoil and installation methodology of the same.

A bearing pile including a plurality of connected corrugated steel shells inserted into a subsoil and installation methodology of the same.

A variable-diameter reinforcing cage for an anchor rod or pile foundation, comprising an axial rod (4), a plurality of vertical bars (2), at least two circular fixators (5) and several groups of ribs (3) which correspond to the circular fixators (5). The circular fixators (5) are all sleeved on the axial rod (4); one end of the ribs (3) is movably connected to the position of the vertical bars (2) at the same height, and the other end of the ribs (3) is movably connected to the circular fixators (5); annular hoops (6) are arranged on the periphery of the vertical bars (2) to serve as circles of latitude; fixing points are formed on the annular hoops (6) and the vertical bars (2); and the annular hoops (6) are annular spiral spring hoops of an elastic material or flexible steel wires.

A variable-diameter reinforcing cage for an anchor rod or pile foundation, comprising an axial rod (4), a plurality of vertical bars (2), at least two circular fixators (5) and several groups of ribs (3) which correspond to the circular fixators (5). The circular fixators (5) are all sleeved on the axial rod (4); one end of the ribs (3) is movably connected to the position of the vertical bars (2) at the same height, and the other end of the ribs (3) is movably connected to the circular fixators (5); annular hoops (6) are arranged on the periphery of the vertical bars (2) to serve as circles of latitude; fixing points are formed on the annular hoops (6) and the vertical bars (2); and the annular hoops (6) are annular spiral spring hoops of an elastic material or flexible steel wires.

Disclosed is a nesting element for use in a hollow pile. The nesting element is configured to be retained at an opening defined in a wall of the pile. The nesting element comprises a surface that is configured such that, in use, the surface substantially conforms to an internal profile at a transverse cross-section of the pile. Also disclosed are a pile system that employs one or more nesting elements in one or more respective piles, and an installation system for installing the pile system into the ground. Additionally, a method of constructing a retaining wall using the pile system and installation system is disclosed.

Disclosed is a nesting element for use in a hollow pile. The nesting element is configured to be retained at an opening defined in a wall of the pile. The nesting element comprises a surface that is configured such that, in use, the surface substantially conforms to an internal profile at a transverse cross-section of the pile. Also disclosed are a pile system that employs one or more nesting elements in one or more respective piles, and an installation system for installing the pile system into the ground. Additionally, a method of constructing a retaining wall using the pile system and installation system is disclosed.

The present invention discloses a system and method for forming a compacted aggregate pier at a target location. The system comprises a mandrel, which is a composition of a casing pipe and an inner steel shaft with close ended cone and convenient entry and exit of the inner shaft. The system further comprises a casing is equipped with water jet system, a rammer of mandrel attached to hydraulic hammer and an inner mandrel with a casing pipe having two valves with open and close capability. Using this system, the matrix soil radial density and the bearing capacity and the modulus of the reaction of the composite soil are increased and soil settlement decreases. This system also increases the density of loose soils or soils with dense sandy intermediate layers especially in shores and rivers in submerged conditions. Also, the loose granular soil is retrofitted against liquefaction.