Shallow excavation foundation reinforcing structure and reinforcing method

Abstract

The invention discloses a shallow excavation foundation reinforcing structure. The shallow excavation foundation reinforcing structure comprises an original foundation and a newly-added raft foundation, wherein the original foundation is an independent foundation or a strip-shaped foundation, the newly-added raft foundation comprises a pin key, a foundation underpinning beam and a foundation underpinning raft, the lower portion of the foundation underpinning raft is filled with compacted room center backfill soil to serve as a supporting layer, the pin key is used for connecting the foundations into a whole, the foundation underpinning beam is used as a connecting piece of the pin key and the foundation underpinning raft, and the foundation underpinning raft is used for improving the bearing capacity of the foundations on the basis of the shallow excavation foundation. The invention further discloses a shallow excavation foundation reinforcing method. According to the shallow excavation foundation reinforcing structure and reinforcing method, the problem that the original independent foundation or the strip-shaped foundation must be excavated to the bottom of the foundation for reinforcement is solved, the foundation excavation depth is greatly reduced, manpower is saved, the construction period is shortened, the foundation reinforcing cost is greatly reduced, and the safety risk is reduced.

Description

technical field [0001] The invention relates to the technical field of construction, and more specifically, relates to a shallow excavation foundation reinforcement structure and a reinforcement method. Background technique [0002] With the continuous development of society, the reinforcement and transformation of old buildings has become an important issue faced by the construction industry, and foundation reinforcement is an important part of the construction content of building reinforcement. Conventional foundation reinforcement methods mainly include: changing independent foundations to strip foundations, strip foundations to cross-orthogonal strip foundations, and strip foundations to raft foundations. In the process of foundation reinforcement construction, in order to ensure that the bottom of the old and new foundations are even, it is necessary to excavate to the height of the original foundation and then reinforce the foundation. Using large-scale excavation equ...

AI Technical Summary

Problems solved by technology

In the process of foundation reinforcement construction, in order to ensure that the bottom of the old and new foundations are even, it is necessary to excavate to the height of the original foundation and then reinforce the foundation. Using large-scale excavation equipment, the construction efficiency is very low, it takes a lot of manpower and time, increases the construction cost of the project, and there are also certain hidden dangers

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