Underground containment tank and piping assembly

A double containment assembly for a fluid carrying pipe comprising:

• a primary pipe adapted to conduct a fluid through the assembly;
• a concrete receptacle having a concrete cover housing said primary pipe;
• means within said concrete receptacle for supporting said primary pipe for longitudinal movement with respect to an elongated axis of said concrete receptacle;
• said concrete receptacle including a plastic liner precluding the penetration of fluid from the interior of said receptacle into said concrete;
• said cover also including a plastic liner along its interior surface adapted to contact the top of the plastic liner on said concrete receptacle, wherein said liner includes studs embedded in said concrete of said receptacle and said cover.

A double containment assembly for a fluid carrying pipe comprising:

• a primary pipe adapted to conduct a fluid through the assembly;
• a concrete receptacle having a concrete cover housing said primary pipe;
• means within said concrete receptacle for supporting said primary pipe for longitudinal movement with respect to an elongated axis of said concrete receptacle;
• said concrete receptacle including a plastic liner precluding the penetration of fluid from the interior of said receptacle into said concrete;
• said cover also including a plastic liner along its interior surface adapted to contact the top of the plastic liner on said concrete receptacle, wherein said interior support means includes:
• a double I-beam support structure spaced along the bottom of said concrete receptacle, each of said double I-beam support structures having an opening slidably receiving said primary piping therethrough.

A double containment assembly for a fluid carrying pipe comprising:

• at least one primary pipe adapted to conduct a fluid through the assembly;
• a plurality of concrete receptacles joined together at an angle between 0.degree. and 180.degree., each receptacle having a concrete cover and housing said primary pipe;
• means within each of said concrete receptacles for supporting said primary pipe for longitudinal movement with respect to an elongated axis of said concrete receptacle;
• each of said concrete receptacles including a plastic liner precluding the penetration of fluid from the interior of said receptacle into said concrete;
• each of said covers also including a plastic liner along its interior surface adapted to contact the top of the plastic liner on said respective concrete receptacle, wherein:
• said concrete receptacles are joined by a plastic extrusion extending between the plastic liner of each of said receptacles along the line of joinder;
• and
• a primary pipe extends through each of said receptacles and is supported therein.

A double containment assembly, comprising:

• at least one primary pipe;
• at least one secondary containment pipe for receiving the at least one primary pipe;
• at least two underground concrete containment tanks, at least one tank including a side wall defining an entrance opening for receiving at least one primary pipe, the side wall being coupled to the at least one secondary containment pipe terminating adjacent to and sealed in relation to the side wall, each tank including a lining for precluding the penetration of fluid from the interior of the tank into the concrete, and defining at least one open end for coupling to an adjacent tank, the at least two tanks being coupled together in an end to end relationship forming a line of joinder between the tanks;
• and
• a plastic joint liner extending between the linings along each line of joinder.

A double containment assembly for a fluid carrying pipe comprising:

• a primary pipe for conducting a fluid through the assembly;
• a concrete receptacle having a concrete cover housing the primary pipe;
• means within the concrete receptacle for supporting the primary pipe for longitudinal movement with respect to an elongated axis of the concrete receptacle;
• the concrete receptacle and cover each including at least one first liner precluding the penetration of fluid from the interior of the receptacle into the concrete;
• and
• at least one second liner seated between the cover and the receptacle to prevent the penetration of fluid from the interior of the receptacle through the interface between the cover and the receptacle, the second liner being formed of at least two portions defining a substantially sinusoidal seam between the at least two portions.