A building structure for crawl space mounted air conditioning apparatus comprises a crawl space defined by at least one crawl space wall including at least one exterior wall within which a ducted condensing unit (DCU) of the air conditioning apparatus is mountable. The crawl space is configured with at least one through-hole opening formed in the at least one exterior wall for enclosing an element of the air conditioning apparatus which is in fluid communication with the DCU.

A cut and cover method of constructing grade separation structures includes partially burying precast substructure elements with associated trench boxes under live traffic. Once the precast substructure elements are buried, the substructure is completed and the bridge span is installed. Other methods include installing precast superstructure elements with a formwork system and forming a bridge substructure and excavating underneath the superstructure once the superstructure is formed.

A cut and cover method of constructing grade separation structures includes partially burying precast substructure elements with associated trench boxes under live traffic. Once the precast substructure elements are buried, the substructure is completed and the bridge span is installed. Other methods include installing precast superstructure elements with a formwork system and forming a bridge substructure and excavating underneath the superstructure once the superstructure is formed.

A subterranean fluid transport system, flange assembly and method of installation is disclosed. In some embodiments, the subterranean fluid transport system includes a pipe segment with a rigid outer surface and a flexible inner sleeve positioned within the borehole of the pipe segment. The flexible inner sleeve configured to expand and contract within the borehole of the pipe segment when fluid is transported therethrough.

A device and method for the creation of a water proof component void form unit to create space between concrete structures and expansive soil for the passage of utility conduit lines is described. The unit includes a plurality of panels interlocked with one or more connectors and supports that pass internally through flutes within the panel members. The void space is formed from a singular panel that is scored along a score line. The score line passes only through an upper surface. The panel member is folded about the lower surface at the score line to form the void space. The panels are located in a trench and configured to define a void space underground for the passage of the utility conduit lines. The unit is configured to resist soil expansive forces so as to protect the placement and integrity of the utility conduit lines.

A method for managing the flow of water beneath a ground surface uses modules. Assemblies of such modules are disclosed. The modules include supports and a deck portion, and the supports are spaced apart and form multiple channels with a main section of the deck portion. The deck portion also includes at least one section extending from a main section.

Systems for providing pipe trenching, and methods of installing the same, are disclosed. Methods of detecting one or more leaks in a pipe trench system and repairing those leaks are also disclosed. The systems may include one or more housings, which may include a trench portion, a lid, a gasket, and one or more leak detectors. The leak detectors may provide a visual indication of a leak in the one or more housings. The leak may be accurately detected, inspected, and repaired without demolition of decking material, excavation of dirt, or damage to the system or surrounding decking material.

Systems for providing pipe trenching, and methods of installing the same, are disclosed. Methods of detecting one or more leaks in a pipe trench system and repairing those leaks are also disclosed. The systems may include one or more housings, which may include a trench portion, a lid, a gasket, and one or more leak detectors. The leak detectors may provide a visual indication of a leak in the one or more housings. The leak may be accurately detected, inspected, and repaired without demolition of decking material, excavation of dirt, or damage to the system or surrounding decking material.

A method for managing the flow of water beneath a ground surface uses modules. Assemblies of such modules are disclosed. The modules include supports and a deck portion, and the supports are spaced apart and form multiple channels with a main section of the deck portion. The deck portion also includes at least one section extending from a main section.

A device and method for the creation of a water proof component void form unit to create space between concrete structures and expansive soil for the passage of plumbing lines, electrical lines and other utility conduit lines is described. The unit includes a plurality of panels interlocked with one or more connectors. The panels are aligned opposite one another and are configured to abut one another to create a route. The panels are located in a trench and configured to define a void space underground for the passage of the utility conduit lines. A top cap overlays across the panels. Utility conduit lines are routed within the void space and adjusted according to needs. The unit is configured to resist soil expansive forces so as to protect the placement and integrity of the utility conduit lines.