This patent pertains to secondary containment systems. One implementation includes a support assembly that includes an elongate post member and a stabilization plate. In one instance, a stabilization plate is mounted on the elongate post member to reduce movement of the elongate post member when the stabilization plate is embedded in the ground. Another implementation includes a panel splice assembly including reinforcing members that secure overlapping, corrugated panels.

This application discloses a new type of suction leg, an offshore caisson, a sit-on-bottom supporting platform. The suction leg includes a sealing long pile, this sealing long pile including a tubular pipe and a top head connected tightly to the tubular pipe to form cylindrical integral structure with sealing top and opening bottom. The top head has at least one opening to be able to open or close. The sealing long pile can be penetrated into the seabed by a gravity penetration method or/and a suction pile penetration method, or pulled out from the seabed by a buoyancy uplift method or/and a suction pile uplift method.

This application discloses a new type of suction leg, an offshore caisson, a sit-on-bottom supporting platform. The suction leg includes a sealing long pile, this sealing long pile including a tubular pipe and a top head connected tightly to the tubular pipe to form cylindrical integral structure with sealing top and opening bottom. The top head has at least one opening to be able to open or close. The sealing long pile can be penetrated into the seabed by a gravity penetration method or/and a suction pile penetration method, or pulled out from the seabed by a buoyancy uplift method or/and a suction pile uplift method.

A steel plate and concrete composite tank unit, tank groups and offshore platforms with new type of tank units are disclosed. The tank unit comprises an outer concrete tank that comprises an outer tank shell, two heads and ring shell connections at both ends, an inner steel tank that comprises an inner tank shell, epitaxial structures at both ends of the inner steel tank. Inner tank shell is connected to the outer tank shell by epitaxial structures, and an isolation layer that is formed from the gap between the outer concrete tank and the inner steel tank where it is filled with isolation medium.

A steel plate and concrete composite tank unit, tank groups and offshore platforms with new type of tank units are disclosed. The tank unit comprises an outer concrete tank that comprises an outer tank shell, two heads and ring shell connections at both ends, an inner steel tank that comprises an inner tank shell, epitaxial structures at both ends of the inner steel tank. Inner tank shell is connected to the outer tank shell by epitaxial structures, and an isolation layer that is formed from the gap between the outer concrete tank and the inner steel tank where it is filled with isolation medium.

A building system comprising a plurality of tubes, a plurality of connection nodes comprising tubular sections for connection to the tubes, wherein the tubes are arranged to connect between the connection nodes to form a frame for a building, wherein at least one continuous cavity is formed through at least a portion of the nodes and tubes when the nodes and tubes are connected, the building system further comprising fluid tight seals between the tubes and connection nodes to enable fluid to flow through the at least one continuous cavity.

In an LNG tank, a dike is formed by arranging precast blocks in the circumferential direction and layering the precast blocks in the vertical direction. Each of the precast blocks has loop joints on the top, bottom, left, and right side faces, and concrete is deposited between each two precast blocks adjacent in the circumferential direction and the vertical direction, whereby masonry joints are formed in the vertical direction and the circumferential direction. Prestress is imparted to the dike by PC steel members. The PC steel members are provided in the circumferential direction and the vertical direction of the dike, and are arranged so as to avoid the masonry joints in the circumferential direction and the vertical direction. Therefore, it is possible to construct the dike in a short time, and it is possible to provide a tank or the like that can reduce the construction period.

An LN storage tank is disclosed. The LNG storage tank includes: a lower insulation board for insulating LNG from the outside; a heating member placed on the lower insulation board; a main secondary barrier attached on the heating member; an upper insulation board attached on part of the main secondary barrier; and an auxiliary secondary barrier attached on the other part of the main secondary barrier, wherein a first adhesive layer may be interposed between the main secondary barrier and the auxiliary secondary barrier.

An LN storage tank is disclosed. The LNG storage tank includes: a lower insulation board for insulating LNG from the outside; a heating member placed on the lower insulation board; a main secondary barrier attached on the heating member; an upper insulation board attached on part of the main secondary barrier; and an auxiliary secondary barrier attached on the other part of the main secondary barrier, wherein a first adhesive layer may be interposed between the main secondary barrier and the auxiliary secondary barrier.

An exchanger for a pool, large storage tank, or pond is described herein. In one embodiment, the exchanger includes a diffuser hub, exchanger extension arms that extend radially outward from the diffuser hub, one or more exchanger rings that intersect with the heat exchanger extension arms, and a fill tube that extends to the diffuser hub. One or both of the heat exchanger arms and/or the exchanger rings include fluid apertures that direct fluid into the pool. Fluid pumped into the fill tube may flow through into the diffuser, through the exchanger extension arms and/or the one or more exchanger rings, and out through the fluid apertures at various locations into the pool. As such, heated fluid, or fluid to be mixed, for example, may be more evenly and quickly distributed into the pool.