Pre-burying arrangement mode and method of downpipes simultaneously used as demolishing blast holes in building peripheral columns

Abstract

The invention relates to a pre-burying arrangement mode and method of downpipes simultaneously used as demolishing blast holes in building peripheral columns. The downpipes of a plane roof building ora pitched roof building are pre-buried in the peripheral columns, the middle sections of the downpipes are parallel to long axis of the building peripheral columns, the lower ends of the downpipes extend out of the column tops or the column outer side surfaces through pipes connected to bent heads, the upper ends of the downpipes are connected with floor drains arranged at the gutter bottoms or the eaves gutter bottoms through hoppers, and the lower ends of the downpipes adopt the 135-degree bent heads to be connected with pipelines extending out of the column outer side surfaces. During construction, steel reinforcement cages of building peripheral columns of a first floor are arranged in an erecting mode, a first section of downpipes are erected in the steel reinforcement cages, the lower ends of the downpipes are exposed, formworks are supported, and concrete is poured; and the above construction is repeated until steel reinforcement cages of building peripheral columns of a top floor are arranged in an erecting mode, the downpipes are erected, and the top ends of the downpipes are connected with floor drains arranged at the roof. According to the pre-burying arrangement mode and method of the downpipes simultaneously used as the demolishing blast holes in the building peripheral columns, the appearance of the building is improved, the use time of the downpipes is prolonged, and later service and maintenance are spared; and the downpipes can be used as the demolishing blast holes of the building peripheral columns.

Description

technical field [0001] The invention relates to the technical field of water drainage system and the field of blasting engineering, in particular to a way and method for the pre-embedded arrangement of downpipes that also serve as demolition blastholes in the peripheral columns of buildings Background technique [0002] In the blasting demolition of reinforced concrete columns, there is a technology of utilizing pre-embedded PVC pipes to remove blastholes, such as: CN105091682B discloses a demolition blasting method for axially embedded blastholes of reinforced concrete columns. This technology can avoid drilling, reduce the cost of blasting and demolition, has little impact on the environment, and has broad application prospects. This technology only considers the pre-buried hole as the blasting hole, and does not introduce the construction of the pre-buried pipe in detail, let alone consider the multi-purpose of the pre-buried pipe, such as serving as a rainwater downpipe,...

AI Technical Summary

Problems solved by technology

[0004] 1. The downpipe is arranged on the side of the outer wall, which is easily weathered by the wind and the sun, and has a short service life; the temperature is low in winter and it is easy to freeze;

[0005] 2. The connecting parts of the downpipe are easy to rust; the fixed block at the end of the connecting part is easy to weather and corrode; it is not easy to maintain when it is arranged on the outer wall

[0006] 3. The arrangement of downpipes on the side of the outer wall may bring convenience to criminals, and thieves can climb up from the water pipes, which poses a great security risk

[0007] 4. The arrangement of downpipes on the side of the outer wall affects the overall appearance

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