A barrier-wall structure having a retaining wall with a back support surface supported by backfill adjacent thereto, wherein the backfill is municipal solid waste processed into fill-material in the form of a multiplicity of biologically-inert compacted pieces.

A barrier-wall structure having a retaining wall with a back support surface supported by backfill adjacent thereto, wherein the backfill is municipal solid waste processed into fill-material in the form of a multiplicity of biologically-inert compacted pieces.

A finishing assembly for a rail and post wall comprising: one or elongate capping members having longitudinal recesses for receiving a top of the wall and for installation therealong; and one or more post covers for installation over posts of the wall.

A retaining wall extension system for extending a retaining wall, wherein the retaining wall includes an existing wall cap having an upper surface defining an elevation of the retaining wall, with the upper surface having a length and a width. The retaining wall extension system includes an extension cap arranged to be received by the existing wall cap of the retaining wall. The extension cap includes a first portion arranged to be received by the upper surface of the existing wall cap, and a second portion integrally formed with the first portion, wherein the second portion extends vertically upward from the first portion so as to extend the elevation of the retaining wall. A method of extending a retaining wall is also provided.

A membrane-lined wall for levee reinforcement or leak prevention, prevention of water migration, and pollution control of impoundments. The membrane-lined wall generally includes a cementitious or concrete wall formed within an excavated trench. The concrete may be internally reinforced, and the wall may also comprise a double-layer of impermeable geomembrane liner that forms a barrier between the concrete and the sides and bottom of the trench. The membrane or liner reduces water migration, prevents levee leakage, and prevents the escape of contaminants in impoundments.

A supporting masonry block has a supporting masonry block body having a front surface, a back surface, a top surface, a bottom surface, a first side and a second side. The front surface has a front-top edge and a front-bottom edge. A tie-back receptacle passes from the top surface, through to the bottom surface. The tie-back receptacle is open to the back surface for connecting the supporting masonry block to a tie-back.

A self-sinking-type deep foundation pit retaining wall structure, comprising a cylindrical retaining wall body (1); a ground breaking structure (2) is formed at the bottom of the cylindrical retaining wall body (1), and the cylindrical retaining wall body (1) is suitable for achieving downward ground breaking and sinking by means of the cooperation of the ground breaking structure (2) and the gravity of the cylindrical retaining wall body; and a water pipe (20) running through the cylindrical retaining wall body is cast in the cylindrical retaining wall body (1), and the water pipe (20) is provided with a water outlet (80) located at the lower end face of the cylindrical retaining wall body (1) and a water inlet (81) located at the upper end face of the cylindrical retaining wall body (1). The self-sinking-type deep foundation pit retaining wall structure further comprises resistance increasing devices (4) provided on an outer side wall (3) of the cylindrical retaining wall body (1), and the resistance increasing devices (4) are used for cooperating with a foundation (5), so as to adjust upward resistance applied by the foundation (5) to the cylindrical retaining wall body (1). In addition, further provided is a construction method for an underground space.

A self-sinking-type deep foundation pit retaining wall structure, comprising a cylindrical retaining wall body (1); a ground breaking structure (2) is formed at the bottom of the cylindrical retaining wall body (1), and the cylindrical retaining wall body (1) is suitable for achieving downward ground breaking and sinking by means of the cooperation of the ground breaking structure (2) and the gravity of the cylindrical retaining wall body; and a water pipe (20) running through the cylindrical retaining wall body is cast in the cylindrical retaining wall body (1), and the water pipe (20) is provided with a water outlet (80) located at the lower end face of the cylindrical retaining wall body (1) and a water inlet (81) located at the upper end face of the cylindrical retaining wall body (1). The self-sinking-type deep foundation pit retaining wall structure further comprises resistance increasing devices (4) provided on an outer side wall (3) of the cylindrical retaining wall body (1), and the resistance increasing devices (4) are used for cooperating with a foundation (5), so as to adjust upward resistance applied by the foundation (5) to the cylindrical retaining wall body (1). In addition, further provided is a construction method for an underground space.

A system of retaining wall blocks, a method of assembling a retaining wall block assembly, and a mold for manufacturing retaining wall blocks having adjustable engagement configurations.

A system of retaining wall blocks, a method of assembling a retaining wall block assembly, and a mold for manufacturing retaining wall blocks having adjustable engagement configurations.