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Interception and drainage pressure-reduction anti-floating system

The invention discloses an interception and drainage pressure-reduction anti-floating system which comprises a waterproof curtain arranged around an underground structure. A plurality of water collecting pits are formed below a bottom plate of the underground structure. Immersible pumps and water level induction switches are arranged in the water collecting pits. Well holes are formed in the bottoms of the water collecting pits. Pressure-reduction well pipes are arranged in the well holes. Anti-filtration layers are arranged around the pressure-reduction well pipes. The tops of the pressure-reduction well pipes are higher than openings of the well holes. The anti-filtration layers are located in the water collecting pits. The pressure-reduction well pipes are mainly formed by axially and vertically stacking a plurality of non-fine concrete well rings. The non-fine concrete well rings comprise upper annular ring beams, lower annular ring beams, stand columns and non-fine concrete wedge-shaped blocks. By means of cooperative work of the system, buoyant force on the bottom plate can be effectively reduced, the drainage amount can be controlled, the surrounding is protected against surface subsidence caused by the too large drainage amount, the number of uplift piles and the number of uplift anchor rods are greatly decreased, non-fine concrete blocks can be conveniently dismounted and replaced, and it is guaranteed that a pressure-reduction well has enough durability.
Owner:SOUTH CHINA UNIV OF TECH

Modular steel structure house

A modular steel structure house comprises a plurality of module units which are spliced with one another. Each module unit comprises a steel structure framework, an outer wall, an inner wall, a floor slab, an electrical system and a water supply and drainage system, wherein the steel structure framework comprises a bottom framework, a top framework and a plurality of portal frames arranged in parallel. Each portal frame comprises portal frame stand columns and a portal frame cross beam, wherein the two ends of the portal frame cross beam are welded to the upper ends of the two portal frame stand columns; the lower ends of the portal frame stand columns are welded to bottom framework side beams; and an upper mounting base is arranged on the top of each portal frame stand column, a butt joint area is formed in the middle of each upper mounting base, and mounting lugs are formed on the two sides of each upper mounting base. A top framework side beam is arranged between the upper ends of every two adjacent portal frame stand columns on the same side. The two ends of each top framework side beam are connected with the corresponding upper mounting bases through bolts. The top framework side beams and the portal frame cross beams form the top frameworks. Each outer wall comprises an outer wallboard and a suspension part, and the outer wall is fixed to the corresponding steel structure framework through the suspension part. According to the modular steel structure house, lightweight design is achieved, the structural strength is high, house splicing can be achieved, and construction is convenient.
Owner:GUANGZHOU ELECTRICAL LOCOMOTIVE
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