System and method for waterproofing below-grade wall structures

A system for waterproofing a wall of a structure wherein the wall is at least partially below-grade, comprising:

• a waterproof membrane having a first side and a second side, the waterproof membrane mounted directly or indirectly to an excavation wall within which the wall of the structure is to be constructed with the first side facing toward the wall to be constructed, and the second side facing toward the excavation wall;
• a plurality of elongate waterstops affixed to the first side of the waterproof membrane, the plurality of elongate waterstops each having a base for attachment to the first side of the waterproof membrane, a web portion having a first end and a second end, the first end adjoining the base, and the second end adjoining a flat top portion, the waterstops arranged on the waterproof membrane to form a plurality of compartments;
• a plurality of distribution tubes affixed to the waterproof membrane, wherein each compartment has at least one distribution tube affixed to the waterproof membrane within each compartment with at least a first portion of the distribution tube oriented laterally on the surface of the first side of the waterproof membrane such that a longitudinal axis of the distribution tube is substantially parallel to the first side of the waterproof membrane, the first portion of each distribution tube having a plurality of apertures to allow an injectable sealing grout to be injected through the distribution tube and out of the apertures into its corresponding compartment;
• and
• a plurality of supply tubes in fluid communication with the plurality of distribution tubes, each of the supply tubes having at least a first portion extending away from the first side of the waterproof membrane and extending through a thickness of the wall to be constructed to a location which will be at the interior of the wall to be constructed.