Anti-seepage structural layer of cast-in-place concrete reserved hole

• Main Authors: ZHANG HONGTAO, SHAO BANG, DING MINGJING, WANG FANGKE, GUO WENGUANG, WANG RUOCHENG
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2024
• Subjects: BLASTING; BUILDING; CEILINGS; ENGINEERING ELEMENTS AND UNITS; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSULATION OR OTHER PROTECTION OF BUILDINGS; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; ROOFS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WALLS, e.g. PARTITIONS; WEAPONS

The utility model relates to the technical field of floor slab anti-seepage structures, in particular to an anti-seepage structure layer of a cast-in-place concrete reserved hole, which comprises a floor slab, a reserved hole and a water pipe, an annular boss is integrally and fixedly arranged on the inner wall of the lower side of the reserved hole, the water pipe is vertically inserted into the reserved hole, a water stop sleeve is sleeved on the outer wall of the water pipe, and the water stop sleeve is sleeved on the outer wall of the water pipe. A reinforcing steel bar support is erected in a gap between the water pipe and the reserved hole, the gap is filled with secondary concrete to form a sealing layer, and a sealing coating is further clamped between the sealing layer and the inner wall of the reserved hole. The inner wall of the reserved hole is arranged to be stepped, so that cracks caused by sinking of secondary concrete can be greatly reduced; by arranging the steel bar support, the adhesive str