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Self-balancing anchor counterweight broken pile forced landing rectification method

A self-balancing and counterweight technology, applied in construction, infrastructure engineering and other directions, can solve the problems of reducing the safety of the bearing capacity of the foundation, increasing the load of the superstructure, and the secondary tilting of the building, so as to reduce the difficulty of pouring, Easy to load, cost-saving effect

Active Publication Date: 2015-08-12
WUHAN SURVEYING GEOTECHN RES INST OF MCC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Self-balancing anchor counterweight broken pile forced landing rectification method
  • Self-balancing anchor counterweight broken pile forced landing rectification method
  • Self-balancing anchor counterweight broken pile forced landing rectification method

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Embodiment Construction

[0032] The self-balancing anchor counterweight broken pile forced landing rectification method of the present invention is realized in this way:

[0033] (1) Excavate the construction face to expose the original foundation cap or the cap connecting beam 2 and the upper pile section of the cast-in-situ pile 1 that has been constructed. 2. Under the operation, the undisturbed foundation soil 7 under it should take measures to avoid disturbance as far as possible, and the plain concrete cushion should be poured first. If the foundation depth is large, the foundation pit slope support design should be carried out according to the routine, and reliable support measures 6 should be set on the pit wall to ensure the safety of the pit side wall;

[0034](2) The reinforcement pile 3 needs to be constructed according to the design of reinforcement and reinforcement. During the pouring construction of each pile, the concrete surface of the top of the pile is controlled according to the e...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D35/00
Inventor 肖玉成张艳军占仲国李梦云吕文志万凯军刘耀峰
Owner WUHAN SURVEYING GEOTECHN RES INST OF MCC
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