A method for constructing a seawall section includes coupling an end of a substantially-waterproof barrier member to a footing. A concrete form is mounted to the footing such that a top end of the form is higher than an exposed upper surface of the footing. The concrete form defines at least part of a fill volume. Another end of the barrier member is coupled to the concrete form such that the barrier member extends over a side of the concrete form opposite the fill volume. Concrete is then poured into the fill volume and cured to form the seawall section. Prior to the curing, a body of water at the footing may be higher than the upper surface of the footing. However, the barrier member prevents water from entering the fill volume through the concrete form.

A method for stabilizing and lifting a channel board by underwater grouting includes (A) when the channel board is damaged, removing the damaged channel board, cleaning and leveling a gravel layer under the damaged channel board, placing an undamaged channel board installed with first grouting pipes and a second grouting pipe on the gravel layer, wherein multiple geotextile bags are respectively bound to the first grouting pipes; when the channel board is subsided, installing first grouting pipes and a second grouting pipe into first grouting holes and a second grouting hole, respectively; (B) performing a first polymer grouting through the first grouting pipes, and performing a second polymer grouting through the second grouting pipe; (C) cutting off a part of the first grouting pipes the second grouting pipe which are exposed to the channel board, and leveling incisions; and (D) removing excess polymer left on the channel board.

A method for constructing a retaining wall using an adjustable single stage panel system has the steps of placing a wall panel adjacent a fill location, then placing a facing wedge adjacent the wall panel, and installing fabric sheet. Next, adding a layer of fill material in the fill location abutting against the facing wedge, and compacting the layer of fill material so that it is compacted against the facing wedge. Then, placing an elongate non-extensible panel anchor on top of the layer of fill material, and attaching the elongate non-extensible panel anchor to the wall panel. At a next step, the facing wedge is moved up to a next course above the layer of fill material, and fabric sheet is installed. An additional layer of fill material is added and compacted with enough force to mobilize the fill. Finally, the method includes the steps of removing the facing wedge, and adjusting the elongate non-extensible panel anchor so that it is plum with the wall panel.

A safety apparatus includes a safety fabric that in use is positioned in an access opening of a subsurface chamber. The safety fabric has a mesh with a plurality of mesh openings and a band formed around a perimeter of the mesh. At least one safety indicator is attached to the band by at least one strap. The safety indicator may be positioned outside of the access opening by extension of the strap when the safety fabric is positioned in the access opening. The subsurface chamber with the access opening may be an inlet chamber of a lift station.

A method for constructing a seawall section includes coupling an end of a substantially-waterproof barrier member to a footing. A concrete form is mounted to the footing such that a top end of the form is higher than an exposed upper surface of the footing. The concrete form defines at least part of a fill volume. Another end of the barrier member is coupled to the concrete form such that the barrier member extends over a side of the concrete form opposite the fill volume. Concrete is then poured into the fill volume and cured to form the seawall section. Prior to the curing, a body of water at the footing may be higher than the upper surface of the footing. However, the barrier member prevents water from entering the fill volume through the concrete form.

A safety apparatus includes a safety fabric that in use is positioned in an access opening of a subsurface chamber. The safety fabric has a mesh with a plurality of mesh openings and a band formed around a perimeter of the mesh. At least one safety indicator is attached to the band by at least one strap. The safety indicator may be positioned outside of the access opening by extension of the strap when the safety fabric is positioned in the access opening. The subsurface chamber with the access opening may be an inlet chamber of a lift station.

A pocket structure for receiving containerized plants is sloped and hung from a wire of a wire basket. The pocket structure includes hooks, an irrigation fitting and corresponding drip channel to transmit water toward the rear of the pocket, and slots in the walls. The mesh units include braces and are sized for shipping. An earth wall is formed of the mesh units and pockets, and includes irrigation tubing.

A modular building block apparatus for the construction of a coastal or river bank erosion defence or protection structure includes a plurality of blocks arranged in stacked rows, the blocks in each row having cooperating formations whereby the blocks in each row are interconnected with one another. Apertures formed in each block extend perpendicular to the rows, and a plurality of connector members extend through aligned apertures in adjacent rows of the blocks to interlock the rows to one another.

A modular building block apparatus for the construction of a coastal or river bank erosion defence or protection structure includes a plurality of blocks arranged in stacked rows, the blocks in each row having cooperating formations whereby the blocks in each row are interconnected with one another. Apertures formed in each block extend perpendicular to the rows, and a plurality of connector members extend through aligned apertures in adjacent rows of the blocks to interlock the rows to one another.