Flexible connection combined supporting and retaining device for high fill slope with deep slip

By using a flexible connection combined retaining device, including retaining walls, cushion layers and anti-slide piles, and by coordinating deformation with elastic devices and inclined reaction devices, the problem of deep sliding on high fill slopes has been solved, and economical and safe slope stability and deformation coordination have been achieved.

CN116464072BActive Publication Date: 2026-07-21CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
Filing Date
2023-04-11
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing technologies are insufficient for economically, safely, and reliably supporting high fill slopes with deep slippage. Traditional retaining structures are costly and their stability is difficult to control. A single retaining method cannot simultaneously meet the needs of both the upper fill and the lower deep slippage.

Method used

A flexible connection combined support device is adopted, including a retaining wall, a mattress layer and anti-slide piles. The anti-slide piles extend into the mattress layer and are fitted with elastic devices. The elastic devices coordinate deformation, and the opening and closing of the foaming agent and water bag are controlled by the tilting reaction device to prevent damage to the mattress layer and excessive compression of the elastic devices.

Benefits of technology

It achieves the coordination of displacement difference between anti-slide piles and retaining walls during deep slippage, prevents slope instability, economically meets the support requirements, protects the cushion layer from damage, and reduces project costs.

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Abstract

The application discloses a flexible connection combined supporting and retaining device for high fill slope with deep slip, relates to the technical field of high fill slope supporting, and comprises, from top to bottom, a retaining wall, a cushion layer and a slide-resistant pile, further comprises an elastic device; the elastic device is sleeved on the end of the slide-resistant pile which extends into the cushion layer. When the displacement difference between the top of the slide-resistant pile and the upper retaining wall is too large, the elastic device satisfying the conduction force requirement can absorb deformation and coordinate deformation, so that the displacement difference between the top of the slide-resistant pile and the upper retaining wall does not affect the stability of the upper retaining wall.
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