Self-balancing anchor counterweight broken pile forced landing rectification method

Abstract

The invention discloses a self-balance anchor counter weight broken pile forced landing rectification method. The self-balance anchor counter weight broken pile forced landing rectification method comprises the following steps of: drilling an anchor rod hole in a foundation pile planned to be truncated; taking the position planned to be truncated as a boundary; taking a lower-part pile body as an anchoring section, an upper-part anchor hole as a free section and a bearing platform which needs to be rectified as an outer anchor bed to form a self-balance anchor; cooperating with various traditional direct broken pile technologies, or artificially arranging a base pile section weakening section on a pile end; buckling the pile body concrete of the section weakening section under the joint action of the upper-part load self weight and the self-balance anchor counter weight to realize the broke pile; realizing the counter weight broken pile forced landing rectification; rectifying building and structure inclination caused by the uneven sedimentation of the pile foundation. According to the self-balance anchor counter weight broken pile forced landing rectification method disclosed by the invention, the self-balance anchor used for assisting the counter weight directly adopts the lower-part pile body of the foundation pile as the anchor rod anchoring section to provide anchoring counter force, the counter weight problem of broken pile forced landing is solved by the ingenious economic means, and therefore the broken pile forced landing can be safer and controllable. According to the self-balance anchor counter weight broken pile forced landing rectification method disclosed by the invention, change and disturbance on the stressed system and the foundation of the building and the structure can be avoided, and the building and the structure can be more safely used after being rectified.

Description

technical field [0001] The patent of the present invention relates to a method of tilt rectification for buildings. It is especially suitable for a pile foundation. It is a method of rectifying the inclination of buildings and structures when uneven settlement occurs. Background technique [0002] In recent years, with the increasing scale of construction projects, the building structures are getting higher and higher, the scale of the single body is getting larger and larger, and more and more buildings and structures adopt pile foundations. , and survey, design, construction, supervision, monitoring, etc. are prone to human errors, and the hidden characteristics of the pile foundation project itself, the uneven settlement of the pile foundation project will lead to the problem that the inclination of the building structure exceeds the standard in the later stage of construction or in the use stage happens sometimes. At this time, demolition and reconstruction not only ha...

AI Technical Summary

Problems solved by technology

However, due to the inevitable prestress loss phenomenon of the prestressed anchor cable under long-term load, there are certain technical defects and risks in the permanent use of the prestressed anchor cable to prevent the overturning of the structure; In a disguised form, the load on the superstructure is increased, which reduces the safety of the bearing capacity of the foundation; in addition, the deep stable foundation may become unstable under the long-term action of the tensile stress of the anchorage section of the permanent anchor cable, resulting in failure of the anti-tipping anchor cable, which may cause Causes secondary overturning of buildings and structures

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