Plugging construction method of reserved opening of basement soleplate and tower crane foundation and post-pouring zone reserved opening

Abstract

The invention relates to a plugging construction method of a reserved opening of a basement soleplate and a tower crane foundation and a post-pouring zone reserved opening, which comprises the following steps of: on the basis of pumping out the water in a foundation and cleaning and preprocessing the reserved openings, arranging a water-stopping sleeve pipe of which the length conforms to the thickness of the basement soleplate at a position with larger water yield or at the position of a spring mouth, arranging a blocking-stone blocking-concrete isolated layer below the water-stopping sleeve pipe, fully laying cobblestones as a permeable layer within the range of 0.8-1.5m around the water-stopping sleeve pipe, horizontally laying a steel fabric sheet on the cobblestone permeable layer, then putting a diving pump into the water-stopping sleeve pipe to continuously pump the water, casting and compacting concrete to plug the reserved openings while pumping the water, and enabling the diving pump to stop pumping the water after the concrete is cast and compacted for 3 days; and after the final set of the concrete for plugging the reserved openings for 7 days, then rapidly taking out the diving pump, adopting a water-stopping sleeve pipe top closing assembly and pouring waterproof concrete to plug the pipe mouth of the water-stopping sleeve pipe. The method also can high-quality realize the plugging construction of the reserved opening of the basement soleplate and the tower crane foundation and the post-pouring zone reserved opening between the basement soleplates when the underground water quantity is large and the water pressure is high.

Description

Technical field: [0001] The invention relates to a building construction method, in particular to a construction method for plugging the basement floor of a high-rise building, the tower crane foundation and the reserved opening of the post-pouring belt Background technique: [0002] With the development of urban construction, a large number of new buildings are becoming tall, large, and odd. During construction, tower cranes have been widely used, and most of the tower crane foundations fall within the scope of the proposed building, so the basement floor in the later stage The blockage of the reserved opening between the foundation of the tower crane is a construction problem often encountered by construction personnel, especially when the groundwater volume is large and the water pressure is high, the conventional dry hard concrete, fast hard concrete and other construction methods cannot be well Solve the problem of blocking the basement floor and the reserved opening of...

AI Technical Summary

Problems solved by technology

[0002] With the development of urban construction, a large number of new buildings are becoming tall, large, and odd. During construction, tower cranes have been widely used, and most of the tower crane foundations fall within the scope of the proposed building, so the basement floor in the later stage The blockage of the reserved opening between the foundation of the tower crane is a construction problem often encountered by construction personnel, especially when the groundwater volume is large and the water pressure is high, the conventional dry hard concrete, fast hard concrete and other construction methods cannot be well Solve the problem of blocking the basement floor and the reserved opening of the foundation opening of the tower crane

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