This patent pertains to secondary containment systems. One implementation includes a support assembly that includes an elongate post member and a stabilization plate. In one instance, a stabilization plate is mounted on the elongate post member to reduce movement of the elongate post member when the stabilization plate is embedded in the ground. Another implementation includes a panel splice assembly including reinforcing members that secure overlapping, corrugated panels.

This patent pertains to secondary containment systems. One implementation includes a support assembly that includes an elongate post member and a stabilization plate. In one instance, a stabilization plate is mounted on the elongate post member to reduce movement of the elongate post member when the stabilization plate is embedded in the ground. Another implementation includes a panel splice assembly including reinforcing members that secure overlapping, corrugated panels.

A structural pile sheet spur including a void creating section located in a fore part of the spur, a pile sheet interfacing section located in an aft part of the spur, and a fluid delivery passageway located in or adjacent to the pile sheet interfacing section.

A structural pile sheet spur including a void creating section located in a fore part of the spur, a pile sheet interfacing section located in an aft part of the spur, and a fluid delivery passageway located in or adjacent to the pile sheet interfacing section.

A trough plate for constructing a locked polymer anti-seepage wall includes a plate body, a guide tube, a grouting pipe and an anti-blocking head. A construction method of the locked polymer anti-seepage wall includes the steps of positioning an N.sup.th trough plate and then pressing the N.sup.th trough plate into ground, wherein N is a natural number larger than and equal to 1; engaging an (N+1).sup.th trough plate with the N.sup.th trough plate, and then pressing the (N+1).sup.th trough plate into the ground; connecting a grouting pipe of the N.sup.th trough plate with a grouting machine, pulling out the N.sup.th trough plate, and simultaneously grouting through the grouting pipe of the N.sup.th trough plate by the grouting machine; and repeating the steps (B) and (C) till the locked polymer anti-seepage wall is completed, wherein the steps (B) and (C) are repeated every time, N is automatically increased by 1.

A protection assembly for protecting a wall, comprising: a coating system for coating a portion of the wall; a flexible covering for covering the coating system, and having fixing portions at end regions of the flexible covering; and a wall anchor system, wherein, in use, the coating system is located between the flexible covering and wall anchor system, and the flexible covering is anchored, at the fixing portions, in a tensioned condition to the wall by the wall anchor system, so the flexible covering produces a force to press the coating system against the wall.

A protection assembly for protecting a wall, comprising: a coating system for coating a portion of the wall; a flexible covering for covering the coating system, and having fixing portions at end regions of the flexible covering; and a wall anchor system, wherein, in use, the coating system is located between the flexible covering and wall anchor system, and the flexible covering is anchored, at the fixing portions, in a tensioned condition to the wall by the wall anchor system, so the flexible covering produces a force to press the coating system against the wall.

A sheet piling filler-corner member includes one or more female couplings for engagement of male couplings of connected sheet pilings, and one or more male coupling members for engagement within female couplings of connected sheet pilings. Selective attachment of sheet pilings using the filler-corner member, and/or modification of the filler-corner member into different configurations allows the filler-corner member to universally function as a spacer or filler for adding length to a sheet piling assembly, as a corner coupling, or as a gender-change adapter between sheet pilings.

The invention relates to apparatus and methods for constructing diaphragm walls. A guideway tube is provided for casting into a concrete panel along a height of a face of the concrete panel, comprising: an elongate guideway track comprising at least one elongate side wall and an elongate slot along the at least one elongate side wall, the elongate slot having a first width; and, an elongate closure panel comprising: a rear panel portion configured to close the elongate slot enclosing an elongate internal volume, and, a front panel portion of a second width greater than the first width. Preferably the rear panel portion is a close fit within elongate slot sufficient to resist the ingress of slurry and concrete. Preferably the rear panel portion is configured to engage the elongate slot in a manner configured to resist compression forces.

The invention relates to apparatus and methods for constructing diaphragm walls. A guideway tube is provided for casting into a concrete panel along a height of a face of the concrete panel, comprising: an elongate guideway track comprising at least one elongate side wall and an elongate slot along the at least one elongate side wall, the elongate slot having a first width; and, an elongate closure panel comprising: a rear panel portion configured to close the elongate slot enclosing an elongate internal volume, and, a front panel portion of a second width greater than the first width. Preferably the rear panel portion is a close fit within elongate slot sufficient to resist the ingress of slurry and concrete. Preferably the rear panel portion is configured to engage the elongate slot in a manner configured to resist compression forces.