Patent ID: 7900418

Claim:
A method of providing a free-flowing permeating substance to a structure in situ, said method comprising: providing a plurality of multi-layer substance delivery devices, each of said multi-layer substance delivery devices comprising a first layer of material, said first layer being permeable to said free-flowing permeating substance but at least nearly impermeable to structural construction materials, said first layer adapted for placement adjacent said structure, said first layer adapted to communicate with said structure to permit introduction of said free-flowing permeating substance to said structure, a second layer of material, said second layer being impermeable, said second layer having a first side and a second side, wherein said second layer of each multi-layer substance delivery device includes an extension portion, said first layer attached to said second layer; attaching a first multi-layer substance delivery device to a shoring structure or an excavated surface, said second layer of said first multi-layer substance delivery device affixed to said shoring structure; attaching a second multi-layer substance delivery device to said shoring structure or excavated surface, wherein said second multi-layer substance delivery device is overlapped onto said first multi-layer substance delivery device on said extension portion; fixedly attaching at least one piping to said first layer of said first multi-layer substance delivery device said at least one piping adapted for communication with said first layer to permit injection of said free-flowing permeating substance into said first layer, said piping having an inlet adapted for placement exterior said structure and constructed to permit communication with a source of said free-flowing permeating substance; constructing a structural construction materials form against said first side of said first multi-layer substance delivery device, so said at least one piping extends through said structural construction materials form; and inserting structural construction materials between said structural construction material form and said first multi-layer substance delivery device.