Support and drainage materials, filter including the materials, and methods of use are disclosed.

The present disclosure includes systems, devices, and methods for correcting foundation heave. Some systems may include a compressed air source configured to propel air having a relative humidity that is less than or equal to 30 percent and one or more air injection devices each configured to be disposed within an earth formation to deliver the air. Some air injection devices include an elongated body having: a length that is greater than or equal to 3 feet, a sidewall that defines a conduit extending along a longitudinal axis of the elongated body, the conduit being configured to be in fluid communication with the compressed air source, and a plurality of perforations, each extending through the sidewall and in fluid communication with the conduit.

The present disclosure includes systems, devices, and methods for correcting foundation heave. Some systems may include a compressed air source configured to propel air having a relative humidity that is less than or equal to 30 percent and one or more air injection devices each configured to be disposed within an earth formation to deliver the air. Some air injection devices include an elongated body having: a length that is greater than or equal to 3 feet, a sidewall that defines a conduit extending along a longitudinal axis of the elongated body, the conduit being configured to be in fluid communication with the compressed air source, and a plurality of perforations, each extending through the sidewall and in fluid communication with the conduit.

Disclosed is a shielding apparatus for high-depth groundwater well pollution prevention grouting comprising: a shielding portion which is provided on the outer circumferential surface of a grouting casing installed in an excavation hole in the ground and compressed to be in close contact with a hollow wall of the excavation hole; a compression portion which is provided on the outer circumferential surface of the grouting casing and formed to descend toward the shielding portion and brings the shielding portion into close contact with the hollow wall of the excavation hole to guide the excavation hole to be sealed; and a pressure equalization injection tube portion which is connected with the compression portion on the outer circumferential surface of the grouting casing and lowers the compression portion by water pressure generated by supplying water from the outside through a water supply tube.

Disclosed is a shielding apparatus for high-depth groundwater well pollution prevention grouting comprising: a shielding portion which is provided on the outer circumferential surface of a grouting casing installed in an excavation hole in the ground and compressed to be in close contact with a hollow wall of the excavation hole; a compression portion which is provided on the outer circumferential surface of the grouting casing and formed to descend toward the shielding portion and brings the shielding portion into close contact with the hollow wall of the excavation hole to guide the excavation hole to be sealed; and a pressure equalization injection tube portion which is connected with the compression portion on the outer circumferential surface of the grouting casing and lowers the compression portion by water pressure generated by supplying water from the outside through a water supply tube.

Various embodiments of methods and apparatus for detecting a change in an orientation of a portion of a structure. In some embodiments, the apparatus includes a processor, an energy storage unit, a location reporting unit, a wireless communication module and one or more inclination sensors. In some embodiments, each of the one or more inclination sensors is configured to measure inclination by measuring an orientation of the each of the one or more inclination sensors relative to a gravitational acceleration vector.

Various embodiments of methods and apparatus for detecting a change in an orientation of a portion of a structure. In some embodiments, the apparatus includes a processor, an energy storage unit, a location reporting unit, a wireless communication module and one or more inclination sensors. In some embodiments, each of the one or more inclination sensors is configured to measure inclination by measuring an orientation of the each of the one or more inclination sensors relative to a gravitational acceleration vector.

Support and drainage materials, filter including the materials, and methods of use are disclosed.

A filter assembly for relieving hydrostatic pressure includes a housing with a flange and a shell. The flange includes an opening extending through the flange and the shell includes a base and a terminating end. The base of the shell is connected to the flange at the opening and extends away from the flange toward the terminating end. The filter assembly also includes a coupling mechanism with a drain pipe orifice to accept a drain pipe therein. The coupling mechanism is movably connected to the terminating end of the shell such that the coupling mechanism can move relative to the shell to change a position of the drain pipe orifice relative to the terminating end of the shell. The filter assembly also includes a filter cartridge removably positioned inside the shell and a face plate removably connected to the flange to secure the filter cartridge inside the shell.

A filter assembly for relieving hydrostatic pressure includes a housing with a flange and a shell. The flange includes an opening extending through the flange and the shell includes a base and a terminating end. The base of the shell is connected to the flange at the opening and extends away from the flange toward the terminating end. The filter assembly also includes a coupling mechanism with a drain pipe orifice to accept a drain pipe therein. The coupling mechanism is movably connected to the terminating end of the shell such that the coupling mechanism can move relative to the shell to change a position of the drain pipe orifice relative to the terminating end of the shell. The filter assembly also includes a filter cartridge removably positioned inside the shell and a face plate removably connected to the flange to secure the filter cartridge inside the shell.