Deep foundation pit construction hoist and installation method thereof

By installing a steel structure foundation and a suspended guide rail frame on the ground floor, the problem of construction hoists being unusable in underground construction was solved, enabling continuous operation of the elevators, improving construction efficiency, and reducing the labor intensity of workers.

CN122144590APending Publication Date: 2026-06-05GUANGZHOU TEWEI ENG MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU TEWEI ENG MASCH CO LTD
Filing Date
2025-12-01
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing construction hoists cannot be used in underground construction, resulting in low construction efficiency and high labor intensity for workers, especially in subway foundation pits and super high-rise foundation construction, where they cannot be installed and used while excavating the foundation pit.

Method used

The elevator is fixed to the ground floor using a steel structure foundation and connecting frame, forming a suspended guide rail frame. The elevator is suspended and moved by a cage and electric hoist. The additional sections are installed step by step using buffer spring seats and manual hoists to ensure the stable operation of the cage in the shaft.

Benefits of technology

This enabled the continuous use of elevators during the foundation pit construction process, reducing the labor intensity and operating costs for workers and improving construction efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122144590A_ABST
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Abstract

The application discloses a deep foundation pit construction elevator and a mounting method thereof, which comprises a steel structure foundation, a connecting frame, a reinforcing section, a to-be-added section, a section adding platform, a cage, the steel structure foundation is arranged on the ground of the first floor, the connecting frame is arranged on the steel structure foundation, the reinforcing section is arranged on the connecting frame and is suspended in front of the steel structure foundation, the top of the reinforcing section is provided with a standard section, the bottom of the reinforcing section is provided with the to-be-added section, the to-be-added section is arranged in multiple, the multiple to-be-added sections are sequentially installed from top to bottom according to the depth of the underground shaft, the standard section, the reinforcing section and the to-be-added section form a guide rail frame, the cage is arranged on the guide rail frame and can move up and down along the guide rail frame, the top of the cage is provided with a skylight, the bottom of the cage is provided with a work window, and the top of the cage is provided with an electric hoist. In the whole construction process of digging the foundation pit downwards, the elevator can be used for going up and down, the labor intensity of workers is reduced, and time and operation cost are saved.
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