River-adjacent unsymmetrical pressure foundation pit support structure

By using steel strands to connect the beam-type anchorage with the cap beam and waist beam in the biased foundation pit adjacent to the river, and adjusting the tension to control the axial force and displacement of the foundation pit, the problem of foundation pit instability caused by the weak soil adjacent to the river was solved, achieving effective foundation pit protection and construction convenience.

CN224314203UActive Publication Date: 2026-06-02CHINA RAILWAY SHANGHAI DESIGN INST GRP CO LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN202520826105.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-06-02
Estimated Expiration
2035-04-28

AI Technical Summary

Technical Problem

Existing technologies struggle to effectively balance soil pressure between the foundation pit and the river channel when the soil on the riverside is weak, potentially leading to significant displacement or collapse of the foundation pit. Commonly used methods such as cement-soil reinforcement and sandbag ballast in the river channel have limitations.

Method used

Steel strands are used to pull the anchor beams, which are then connected to the cap beam and waist beam by pipe jacking construction. The tension force or tension amount is adjusted to control the axial force and displacement of the foundation pit, and the foundation pit is protected using trenchless technology.

Benefits of technology

It achieves effective control of foundation pit displacement and axial force without affecting river channels and ground resources, has strong artificial controllability, and can be used as a municipal pipeline channel, demonstrating good innovation and reliability.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model relates to the technical field of civil engineering, in particular to a river-adjacent unsymmetrical pressure foundation pit support structure which comprises a support body, a top beam, a waist beam and an inner support, a beam type anchorage is arranged in a soil body on the other side of the foundation pit support structure, the beam type anchorage is connected with one end of a steel strand, and after the steel strand is tensioned, the beam type anchorage is connected with the other end of the steel strand. And the other end of the connecting rod is fixedly connected with the top beam and / or the waist beam. The utility model has the advantages that: 1) the non-excavation process is mainly adopted for implementation, the river channel is not influenced, the influence on the ground pipeline and the traffic is small, 2) the support axial force and the displacement of the foundation pit can be effectively coordinated by adjusting the tension value or the tension amount of the steel strand, the manual controllability is stronger, and 3) the non-excavation steel strand channel can be used as the channel of the municipal pipeline after the construction is finished.
Need to check novelty before this filing date? Find Prior Art