Reserved soil body separated and divisional excavation construction structure for long-strip-shaped foundation pit adjacent to important structure

Abstract

The invention relates to the technical field of building engineering and discloses a reserved soil body separated and divisional excavation construction structure for a long-strip-shaped foundation pit adjacent to an important structure and a construction method. The reserved soil body separated and divisional excavation construction structure comprises the adjacent important structure and the long-strip-shaped foundation pit, small pits are independently formed in the side of the adjacent important structure, in the vertical direction, a reserved soil body of the foundation pit is adjacent, step-slope support is conducted, horizontal counterforce is provided for excavation of the independent sub pits, and other areas and the independent small pits are constructed simultaneously. Accordingto the reserved soil body separated and divisional excavation construction structure for the long-strip-shaped foundation pit adjacent to the important structure and the construction method, innovation is conducted on an independent sub pit sequential excavation construction method for the long-strip-shaped deep and large foundation pit adjacent to the important structure, under the premise thatthe safety of the important structure adjacent to the foundation pit is ensured, simultaneous construction of the other areas except the reserved soil body range is achieved, thus the construction deploying difficulty is lowered, and the total construction period is effectively shortened.

Description

technical field [0001] The invention relates to the technical field of building foundation pit engineering, in particular to a construction structure and a construction method for excavating and excavating the reserved soil body in a strip-shaped foundation pit adjacent to an important structure. Background technique [0002] In recent years, my country's real estate industry has developed vigorously, various types of buildings have sprung up, and urban construction land has become increasingly tense. In order to make full use of space and alleviate the shortage of urban land, modern cities have adopted strategies to develop high-altitude and underground. There are more and more high-rise and super high-rise buildings, and large-scale deep foundation pit technology is also being used more and more. [0003] With the development and changes of urban layout and overall planning, there are more and more projects for the integrated development of large-scale underground space ad...

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Problems solved by technology

[0005] In order to overcome various problems such as slow construction speed, long overall construction period, high construction cost, and difficulty in construction deployment when deep and large foundation pits are divided into deep and large foundation pits adjacent to important structures, and conventional construction procedures are arranged sequentially in different areas, the present invention provides an adjacent important structure. The excavation construction structure of the reserved soil in the long strip foundation pit is divided into partitions, and the invention also provides the construction method of the structure

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