Deep foundation pit supporting structure

Abstract

The invention discloses a deep foundation pit supporting structure, and relates to the technical filed of foundation pit excavation engineering. According to the key points of the technical scheme, the deep foundation pit supporting structure comprises a side plate, a bottom plate, a supporting rod, two supporting bases, first inserted-connection anchoring rods, second inserted-connection anchoring rods and fixing anchoring rods; the two supporting bases are hinged to the two sides of the supporting rod correspondingly and fixedly mounted on the side plate and the bottom plate, mounting holesare formed in the side plate and the bottom plate correspondingly, and the first inserted-connection anchoring rods and the second inserted-connection anchoring rods each comprise a hollow body, a threaded rod, a driving disc and a plurality of inserted-connection plates slidably connected to the circumferential side wall of the driving disc; sliding grooves corresponding to the inserted-connection plates in an one-to-one mode are formed in the circumferential side wall of each body, the inserted-connection plates are slidably connected into the sliding grooves in an inserted mode through thedriving discs, and the first inserted-connection anchoring rods and the second inserted-connection anchoring rods are mounted on the side plate and the bottom plate correspondingly. A deep foundationpit is supported through the deep foundation pit supporting structure, and thus the purposes of improving the construction quality, the firm degree of the supporting structure and the stability are achieved.

Description

technical field [0001] The invention relates to the technical field of foundation pit excavation engineering, more specifically, it relates to a deep foundation pit support structure. Background technique [0002] The foundation pit will inevitably cause deformation of the surrounding soil during the excavation process, which will affect the surrounding buildings and underground pipelines, and seriously endanger its normal use or safety; in order to avoid this situation, it will increase Support system to stabilize the safety of foundation pit, there are three main forms: flat support, diagonal support and reverse anchoring technology. [0003] Flat braces are currently widely used in deep foundation pits, but flat braces take up a lot of space in the pit, and the construction period is long, which is not conducive to excavation operations. There are great safety hazards in later demolition, which not only increases the cost of the project, but also is not conducive to envir...

AI Technical Summary

Problems solved by technology

[0005] Although the structure uses diagonal bracing support structure, the diagonal bracing reaction force device is statically pressed into the soil, so it is difficult to control the construction quality, and the structural firmness and stability of this support form are poor

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