Deep foundation pit inclined support supporting structure and construction method

Abstract

The invention discloses a deep foundation pit inclined strut supporting structure and a construction method. The deep foundation pit inclined strut supporting structure comprises inclined struts, mainpiles and a bottom plate; the main piles are arranged on two sides of a deep foundation pit; the inclined struts are located on the near-soil sides of the main piles; the inclined struts penetrate through the main piles and are connected with the main piles; the bottom plate is located on the away-from-soil sides of the main piles; and the inclined struts, the main piles and the bottom plate areconnected into a whole. Under the condition that excavation is not conducted in advance, pipe jacking technology is adopted for installing steel pipe inclined struts of the deep foundation pit, and the structure is wide in application range, is suitable for inclined strut supporting systems of different types and deep foundation pits of different depths, is suitable for soft soil or soft soil layers rich in water, and Can cross roads, railways, rivers and ground buildings in underground pipeline construction.

Description

technical field [0001] The invention relates to a support structure and a construction method thereof, in particular to a deep foundation pit oblique support support structure and a construction method. Background technique [0002] At present, there are some problems in the foundation pit engineering, which are mainly manifested in three aspects: first, the excavation area of ​​the foundation pit project is relatively large; second, the excavation depth of the foundation pit project is relatively deep; third, the surrounding environment of the foundation pit project requires Protect. These three problems all put forward higher requirements for foundation pit technology. In foundation pit engineering, many factors such as safety, operability and economy need to be considered. If only a single support form is used in foundation pit engineering, it will be difficult to meet the technical requirements. Therefore, the ideal way is to choose different support forms for combinat...

AI Technical Summary

Problems solved by technology

This method requires a large area of ​​earthwork to be excavated in advance, and it is necessary to manually operate the crane to fix and correct the braces, which consumes a lot of manpower and material resources. The construction period is long and the accuracy of the brace installation is difficult to control, resulting in large errors.

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