Tower crane foundation hole advance water stop structure and construction system thereof

CN222758960UActive Publication Date: 2025-04-15CHIAN JIANGXI CORP FOR INT ECONOMIC & TECHN COOPERATION
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Patent Information

Application Number
CN202421344069.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-13
Publication Date
2025-04-15
Estimated Expiration
2034-06-13

AI Technical Summary

Technical Problem

The tower crane foundation is subjected to dynamic load during the tower crane lifting operation, resulting in loosening, failure and leakage of the middle buried water stop steel plate. The construction of the tower crane hole in the basement floor is often affected by groundwater, resulting in poor concrete pouring quality. The high water pressure under the bottom plate causes the post-pouring sealed concrete to be diluted or penetrated, resulting in sand hole leakage.

Method used

The water stop structure is adopted for the tower crane foundation hole, including a first bottom plate downward ring beam is provided on the edge of the tower crane foundation, and a first water stop is buried in the middle of its inner circumference side; a second water stop is buried in the middle of the inner circumference side of the ring beam is buried in the middle of the foundation; a grouting pipe and its ball valve are used to achieve visual monitoring; and a water stop steel plate is used at the construction joint to ensure the water stop effect.

Benefits of technology

Through the concave and convex ring beam structure and the use of flexible materials, four flexible advance water stop layers are realized, avoiding the impact of settlement difference on the water stop structure, preventing water penetration, and ensuring the stability and safety of the closure opening of the tower crane.

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Abstract

The utility model relates to the technical field of building construction, in particular to a tower crane foundation hole advance water stop structure and a construction system thereof. Before a tower crane foundation hole is not closed, a tower crane foundation, a first bottom plate downward turning ring beam, a first water stop belt, a foundation upward turning ring beam, a second water stop belt and a second bottom plate downward turning ring beam are included, and the first bottom plate downward turning ring beam is arranged on the edge of the top of the tower crane foundation; a first water stop belt is embedded in the middle of the inner circumferential side face of the first bottom plate downward turning ring beam; a concave-convex buckled ring beam structure is utilized, namely, two downwards-turned ring beams of a basement bottom plate and one upwards-turned ring beam of a tower crane foundation are buckled with each other, and an n-shaped deformation joint is formed; in the gaps, BW type water swelling rubber waterstops and grouting flexible materials are buried, so that four flexible advanced waterstop layers are formed, the influence of settlement difference generated by different construction forms under different bottom plate foundations on the waterstop structure is avoided, and water permeation is prevented.
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