Abstract: Systems and methods for raising a slab, such as a concrete slab, that has sunken and needs to be raised. In one injection, dried sand is carried in a stream of pressurized air and injected underneath the slab. The pressurized air raises the slab, and the dried sand is dispersed over a broad area and great distance underneath the slab to fill voids underneath the slab. Water is then injected underneath the slab for a predetermined period of time to wet the injected dried sand which stabilizes the injected sand and seals the injected sand to minimize or prevent air from passing through the injected sand. After the water injection, additional dried sand and pressurized air is injected underneath the slab to continue the slab lifting and filling of the void(s) underneath the slab.

Abstract: Methods of lifting structures such as a wall of a building. A fluid that is under pressure is injected beneath the base of the wall. The pressure of the injected fluid acts against the base of the wall to lift the wall vertically. In some embodiments, a supplemental lifting force mechanism can be attached to the wall to apply a supplemental lifting force to the wall that acts together with the lifting force applied by the injected fluid. The supplemental lifting force “lightens” the wall, reducing the amount of lifting force required to be applied to the wall by the injected fluid.

Abstract: Methods of lifting structures such as a wall of a building. A fluid that is under pressure is injected beneath the base of the wall. The pressure of the injected fluid acts against the base of the wall to lift the wall vertically. In some embodiments, a supplemental lifting force mechanism can be attached to the wall to apply a supplemental lifting force to the wall that acts together with the lifting force applied by the injected fluid. The supplemental lifting force “lightens” the wall, reducing the amount of lifting force required to be applied to the wall by the injected fluid.

Abstract: Methods of lifting structures such as a wall of a building. A fluid that is under pressure is injected beneath the base of the wall. The pressure of the injected fluid acts against the base of the wall to lift the wall vertically. In some embodiments, a supplemental lifting force mechanism can be attached to the wall to apply a supplemental lifting force to the wall that acts together with the lifting force applied by the injected fluid. The supplemental lifting force “lightens” the wall, reducing the amount of lifting force required to be applied to the wall by the injected fluid.

Abstract: An inflatable hose is folded over onto itself at least once to form inflatable hose sections. When a pressurized media is introduced into the hose, the hose sections expand in volume. The expansion in volume can be used to apply a force to a structure which can be used to, for example, move the structure in a desired direction or maintain the structure at a height or position. The force(s) can be applied to the structure in a vertical direction (for example vertically upward or vertically downward), a horizontal direction (for example to move or maintain the structure in a sideways direction) or any angle between vertical and horizontal.

Abstract: A method of lifting a structure using one or more inflatable hoses is described. In one embodiment, a method of lifting a structure resting on the ground includes attaching a lift apparatus to the structure to the raised. An inflatable hose is introduced underneath the lift apparatus, with the inflatable hose being disposed between a bottom surface of the lift apparatus and the ground. The structure is then lifted by inflating the hose with pressurized media so that the hose increases in volume to impose an upward force on the lift apparatus which in turn lifts the structure.

Abstract: A method of lifting a structure using one or more inflatable hoses is described. In one embodiment, a method of lifting a structure resting on the ground includes attaching a lift apparatus to the structure to the raised. An inflatable hose is introduced underneath the lift apparatus, with the inflatable hose being disposed between a bottom surface of the lift apparatus and the ground. The structure is then lifted by inflating the hose with pressurized media so that the hose increases in volume to impose an upward force on the lift apparatus which in turn lifts the structure.

Abstract: A mobile Sand Dryer is disclosed. This dryer is substantially made up of two portions. The first portion of the Sand Dryer is a wet sand tank. This tank is essentially divided into two distinct portions; an upper wet sand holding chamber and a lower sand drying chamber. The two chambers are divided by a grate. The upper wet sand holding chamber is supplied with a removable lid as well as a fan which may be used to create a vacuum in the chamber. The lower sand drying chamber is supplied with a propane burner and a hopper bottom. During use wet sand is placed in the upper wet sand drying chamber via the removable lid. The wet sand collects on the steel grate as it is placed into the chamber. Upon ignition of the burner and the fan the vacuum crated by the fan tends to draw the heat and moisture from the sand up and out the top of the chamber. As the sand on the grate is dried it falls through the grate before finally be moved via a vacuum tube to the second chamber.