Method for handling high-low strides at adjacent parts of reverse building foundation pit and adjacent foundation pit

Abstract

The invention relates to a method for handling high-low strides at adjacent parts of a reverse building foundation pit and an adjacent foundation pit. The method comprises the steps that firstly, pouring piles are constructed and enclosed, and a top ring beam is manufactured; secondly, reverse building foundation pit structure top plate construction is carried out, a top plate and the top ring beam are connected through connecting beams, and brackets formed by the heightened top ring beam and variable cross-section joint sections are manufactured at the positions, having the height difference, of the adjacent edges of the top plate of the reverse building foundation pit and the adjacent foundation pit; thirdly, after the brackets and supporting beam connectors of the adjacent foundation pit are completed, the next procedure of structure construction is carried out on the reverse building foundation pit, after the bottom plate construction of the reverse building foundation pit is completed, excavation of the adjacent foundation pit and the next procedure of construction are carried out. By means of the method, the situation of structure force transmission discontinuousness caused by different elevations in adjacent reverse building foundation pits can be well handled, the working condition limitation that the adjacent foundation pit can be excavated only after backfill of the reverse building foundation pit is completed can also be avoided, the duration of a project is greatly shortened, and the technical feasibility, the working efficiency and the implementation effect of the method are much better than those of a traditional manner.

Description

technical field [0001] The invention relates to a method for constructing a building foundation pit, in particular to a method for treating the height and span between an inverse foundation pit and an adjacent foundation pit. Background technique [0002] At present, due to the large area of ​​the foundation pit or development requirements, there are more and more cases where a single foundation pit is divided into 2~3 foundation pits for construction. However, the foundation pit adopting the reverse method has a characteristic: the indoor floor, that is, the roof of the basement is generally higher than the ground, and the structure of the adjacent side may be lower than the structural surface of the roof. In this way, there is a height difference on both sides, resulting in discontinuous force transmission of the structure, and necessary measures must be taken to deal with it. The traditional treatment method is to construct a foundation pit first according to the aforemen...

AI Technical Summary

Problems solved by technology

In this way, there is a height difference on both sides, resulting in discontinuous force transmission of the structure, and necessary measures must be taken to deal with it. The traditional treatment method is to construct a foundation pit first according to the aforementioned method, and after it is completely completed and backfilled, use the backfilled earthwork For force transmission, not only the construction period of adjacent foundation pits is greatly limited, but also the backfilled earthwork will be excavated later, resulting in secondary economic waste

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