A method of forming a structural support in earth below a ground surface is disclosed. A water-resistant confinement unit is placed in the earth below the ground surface, the confinement unit having a first end oriented towards the ground surface, a second end opposite the first end, and the first end having an opening. Granular material is released into the confinement unit through the opening to at least partially fill the confinement unit with granular material. Expandable polymeric resin is injected into the confinement unit to at least partially fill the confinement unit to compress earth around the confinement unit.
A system and method of stabilizing and strengthening wall structures constructed with hollow core cementitious blocks that have not been filled with concrete. Relatively small ports are drilled at the grout line every 4-6 courses along the vertical plain of one hollow core and this and every second core is then filled with a high density expanding resin thus filling the core there by providing sufficient strength and rigidity, yet flexibility to the wall structure to withstand significant seismic activity.
E04C 1/00 - Building elements of block or other shape for the construction of parts of buildings
E04B 2/00 - Walls, e.g. partitions, for buildingsWall construction with regard to insulationConnections specially adapted to walls
E04C 1/39 - Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
E04B 1/00 - Constructions in generalStructures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
A method is disclosed of lifting a settled foundation that comprises a slab attached to a load-bearing perimeter portion, the method comprising: injecting hardening material under the slab in order to lift the slab; and simultaneously lifting the load-bearing perimeter portion using a lift system while injecting the hardening material under the slab. A method is also disclosed of lifting a settled foundation that comprises a slab attached to a load-bearing perimeter portion, the method comprising: injecting expandable polymeric resin under the slab in order to lift the slab; and simultaneously lifting the load-bearing perimeter portion using a mechanical lift while injecting the expandable polymeric resin under the slab.
A method of imparting strength to earth in support of a ground surface is disclosed. A bag is placed in the earth under the ground surface, the bag having a first end oriented towards the ground surface, a second end opposite the first end, and a cross sectional contour from the first end to the second end that includes at least one wedge portion extendable laterally into surrounding earth located above and below the wedge portion when the bag is filled. A expandable polymeric resin is injected into the bag to at least partially fill the bag to compress earth around the bag. The expandable polymeric resin may be expandable polymeric resin. A bag is also disclosed for use in imparting strength to earth in support of a ground surface. The bag comprises at least an opening, a first end and a second end opposed the first end, and a cross sectional contour from the first end to the second end that includes at least one wedge portion extendable laterally into surrounding earth above and below the wedge portion when the bag is filled and in earth under the ground surface
A system and method of stabilizing wall structures constructed with hollow core cementitious blocks that have not been filled with concrete. Relatively small cores are drilled along either the upper or lower portion of the wall structure to allow for the insertion of a rigid yet flexible reinforcing rod into the hollow core of the block. Through the same hole and other ports drilled into the hollow core block, high density expanding resin is injected to fully fill and encapsulate the reinforcing bar or rod thereby providing sufficient rigidity to the wall structure to withstand significant seismic activity.
A foam delivery system comprises two delivery tubes providing a mixing chamber with a two-part polymeric foam. The mixing chamber mixes the two-part polymeric foam below a ground surface. A delivery manifold with delivery arms discharges the two-part polymer resin from the foam delivery system. A method of distributing a foam delivery systems comprises lowering a foam delivery system below a ground surface and discharging a polymer resin into the ground surface from a mixing chamber located below the ground surface. The mixing chamber discharges the polymer resin while the mixing chamber is lifted towards the ground surface, providing an expanding base of polymer resin. In that the chemicals are mixed at depth, that is, at the depth of the desired injection points, the possibility of premature setting and plugging of the delivery system is negated. An injector, comprising the mixing chamber and the delivery manifold, mixes the two-part chemical system at depth and then simultaneously distributes the mixed chemicals to up to six injection points at any desired depth.
In this invention, after a hole has been drilled or excavated, injection probe(s) are placed at appropriate depth(s), the excavated native materials are replaced with appropriately sized crushed rock or other natural or synthetic materials, and then a polymeric resin is injected through the probe(s) to encapsulate and bind the fill material, whereby upon curing the polymeric resin and fill material forms a foam friction pile. Such friction piles drilled or excavated adjacent to each other will form a foam sheet piling system. The foam piles can also be re-enforced using nylon, polypropylene, fiberglass, other synthetic or non-synthetic materials or combinations of these materials. The polymeric resin typically would comprise a high density closed cell, water resistant expanding two component polyurethane foam system.
