Foundation reinforcement and inclination correction method for friction piles of high-rise building

Abstract

A foundation reinforcement and inclination correction method for friction piles of a high-rise building comprises the steps of 1, building settlement and inclination analysis, wherein (1), settlement and inclination displacement monitoring, (2), supplementary investigation of geotechnical engineering conditions and (3), determination of bearing capacity of original pile foundation are included; 2, making of an inclination correction and reinforcement scheme of the high-rise building, wherein (1), determination of a reinforcement and inclination correction idea, (2), determination of a reinforcement and inclination correction target, (3), raft supplement calculation, and (4), a principle of pile supplement are included; 3, high-rise building reinforcement construction, wherein (1), foundation excavation, (2), raff construction and determination of supplement pile positions, (3), column (wall) foot reinforcement construction, (4), static pressure pile construction, (5), press-in pile quality detection, (6), settlement of large side sealing piles, and (7), original soil compaction are included; and 4, high-rise building self-weight inclination correction construction, wherein (1), the use of high-rise building self-weight inclination correction, (2), settlement of small side sealing piles, and (3), the original soil compaction are included.

Description

technical field [0001] The invention relates to the technical field of reinforcement and rectification of foundations of existing buildings. Background technique [0002] With the rapid development of the national economy and the continuous enhancement of comprehensive national strength, the rapid development of urban construction, the technical level of architectural structure design, construction technology and construction management have been greatly improved, and more and more high-rise buildings have appeared in various places. . Pile foundation is often used as the foundation entity of high-rise buildings. Its design has a wide range of options and can adapt to complex geological conditions and buildings (structures) of different scales. It has been widely used in foundation engineering of high-rise buildings and has achieved good results. economic and social benefits. However, since the construction process of the pile foundation cannot be observed, the quality of ...

AI Technical Summary

Problems solved by technology

The forced landing rectification method has high requirements on the type of foundation soil and the surrounding environmental conditions of the building, and the settlement amount and rectification rate are not easy to control, which may easily lead to secondary uneven settlement or re-tilting; the jacking rectification method is easy to Cause secondary damage to the upper structure of the building, and because of the high self-weight of high-rise buildings, the jacking reaction force will cause accelerated settlement of the foundation, resulting in changes in the bearing capacity of the foundation, thereby inducing secondary settlement and other hazards

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