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.

The invention relates to a system for erecting a building structure, the system comprising a foundation for receiving the building structure, and a plurality of inner and outer walls, roof and floor panels, the panels being adapted to engage each other for defining at least one story of the building structure, wherein the foundation comprises a first section and a second section, the first section being adapted to bear the load of the building structure and the second section being adapted to provide access to the interiors of the building structure.

The invention relates to a system for erecting a building structure, the system comprising a foundation for receiving the building structure, and a plurality of inner and outer walls, roof and floor panels, the panels being adapted to engage each other for defining at least one story of the building structure, wherein the foundation comprises a first section and a second section, the first section being adapted to bear the load of the building structure and the second section being adapted to provide access to the interiors of the building structure.

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

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

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.

Disclosed are a system and method for controlling land deformation, and a method for optimal design of a well in a system for controlling a well in a system for controlling land deformation. The land deformation control system with respect to a land including an confined aquifer and an aquiclude above the confined aquifer includes a first well for water pumping from or water injecting into the confined aquifer; and one or more second wells spaced apart from the first well by a predetermined distance and having a lower end portion positioned in the aquiclude, wherein a water level of the second well is maintained at a preset water level value to control an amount of change in water head of the aquiclude, which drops due to pumping of the confined aquifer or rises due to injection with respect to each of the second wells.

Disclosed are a system and method for controlling land deformation, and a method for optimal design of a well in a system for controlling a well in a system for controlling land deformation. The land deformation control system with respect to a land including an confined aquifer and an aquiclude above the confined aquifer includes a first well for water pumping from or water injecting into the confined aquifer; and one or more second wells spaced apart from the first well by a predetermined distance and having a lower end portion positioned in the aquiclude, wherein a water level of the second well is maintained at a preset water level value to control an amount of change in water head of the aquiclude, which drops due to pumping of the confined aquifer or rises due to injection with respect to each of the second wells.