Flexible through-wall pipe blocking structure and construction method thereof

Abstract

The invention discloses a flexible through-wall pipe blocking structure and a construction method thereof. The flexible through-wall pipe blocking structure comprises a flexible wall-through pipe embedded in a structural outer wall, a water-swellable filler is arranged in a pipe body of the flexible through-wall pipe in a sealed manner, the position between the inner surface of the structural outer wall and the flexible through-wall pipe is filled with waterproof cement mortar which is in contact with the water-swellable filler, the waterproof cement mortar is conical, and the conical surfacefaces the inner surface of the structural outer wall. The construction method of the flexible through-wall pipe sealing structure comprises the steps that sundries in the pipe body of the flexible wall-through pipe are removed; the pipe body of the flexible wall-through pipe is filled with the water-swellable filler, and the position between the inner surface of the structural outer wall and theflexible through-wall pipe is filled with the waterproof cement mortar. The flexible through-wall pipe sealing structure and the construction method thereof can effectively prevent groundwater from leaking into an underground structure from the blocking portion of the flexible through-wall pipe.

Description

technical field [0001] The invention relates to the technical field of underground engineering waterproof construction, in particular to a flexible wall-penetrating pipe sealing structure and a construction method thereof. Background technique [0002] Waterproofing of underground structures has always been an important technical problem in the field of civil engineering construction, especially in areas with abundant groundwater or high groundwater levels. The waterproof effect of the water-facing surface (face facing the water) of underground structures is directly related to the use function and structure of the building. security. [0003] Due to the needs of construction measures, during the construction process, the outer wall of the underground structure often needs to pre-embed small-diameter flexible wall-through pipes in the wall, and in the later stage of structure fabrication, it is necessary to use small-diameter flexible pipes for these construction measures. ...

AI Technical Summary

Problems solved by technology

However, due to the different lengths of electric drill pipes used in on-site construction, it cannot be guaranteed that the length of the drill pipe must be greater than the width of the wall, and the size of the drill bit is often smaller than the inner diameter of the flexible pipe, so that the electric drill cannot completely break the flexible pipe in the wall, leaving some pipes. In the wall structure, in this case, only waterproof mortar is used to block it, and the groundwater flow is easy to flow into the structure through the gap between the residual pipe or waterproof mortar and the original concrete structure, and the waterproof effect is poor

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