用于松散体地层的抗滑桩结构及其施工方法

By using rectangular pile foundations with surrounding grouting and a new type of anti-sliding pile assembly in loose strata, the problem of drilling in loose strata was solved, construction safety and stability were improved, project costs were reduced, and the overall performance of the piles was enhanced.

CN120311718BActive Publication Date: 2026-07-17CHONGQING UNIV +3

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING UNIV
Filing Date
2025-05-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In loose strata, traditional anti-slide pile structures are difficult to drill effectively and have poor stability, making them prone to hole collapse, pile deformation, and steel corrosion, which affects the long-term stability of the engineering structure.

Method used

The rectangular pile foundation is reinforced with loose soil around the perimeter by grouting and a new type of anti-slide pile assembly, including rectangular piles, irregular pile caps, circular rotary pile groups, I-beam pull-out keys and prestressed ground anchors. A stable pile foundation structure is formed by grouting to consolidate the retaining wall and mechanical drilling.

Benefits of technology

It improves construction safety and stability in loose strata, reduces project costs, solves the problem of pile foundation drilling in loose strata, and enhances the overall performance and anti-sliding effect of the pile body.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及岩石工程技术领域,尤其涉及用于松散体地层的抗滑桩结构及其施工方法。其技术方案包括桩基四周松散土注浆护壁和新型抗滑桩组件;松散土注浆护壁基于桩孔开挖前于桩基尺寸外侧四周注浆形成原土固结护壁;新型抗滑桩组件包括:矩形桩;异型预制承台;圆形旋挖群桩,作为抗滑桩锚固段,靠山侧圆桩侧壁设置工字钢抗拔键;圆形桩靠山侧钢筋笼,用于形成圆桩骨架;圆桩顶部压顶梁,在靠山侧设置两排,用于将靠山侧矩形桩钢筋笼、两根圆桩钢筋笼与中间圆桩钢筋笼相互搭接;预应力地锚,用于提高桩基的锚固强度和抗剪强度。本发明采用新型抗滑桩组件和施工方法,能实现松软地层的矩形桩全机械化作业,且施工效率、经济性、安全性均较高。
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