Deep and large foundation pit angle supporting horizontal shearing resistance structure

Abstract

The invention relates to the technical field of deep and large foundation pit supporting, and discloses a deep and large foundation pit angle supporting horizontal shearing resistance structure which comprises a plurality of supporting piles and an angle supporting layer. The upper ends of the supporting piles are all connected to a top beam. The angle supporting layer comprises two inner supporting waist beams, a plurality of angle supporting beams and a plurality of connecting beams. A plurality of upper stiffening oblique beams are connected between the top beam and the inner supporting waist beams. The upper stiffening oblique beams are fixedly connected with the supporting piles respectively, and every two upper stiffening oblique beams are arranged in a crossed mode. The upper stiffening oblique beams are used for enabling the top beam on the supporting piles and the inner supporting waist beams in the angle supporting layer to be connected together, the upper stiffening oblique beams and the supporting piles are fixedly connected and are arranged in a crossed mode, and therefore the top beam, the supporting piles and the angle supporting layer form an integral structure. The horizontal shearing force borne by the supporting piles can be transmitted to the upper stiffening oblique beams, the horizontal shearing force formed by the supporting piles which bear soil pressure is greatly enhanced, and a good supporting effect is achieved on the entire deep and large foundation pit.

Description

technical field [0001] The invention relates to the technical field of deep and large foundation pit support, in particular to a horizontal shear-resistant structure of deep and large foundation pit corner supports. Background technique [0002] In deep foundation pit support engineering, the combined support structure of row piles (or underground diaphragm wall, occlusal piles) and inner support is a common form of support structure. The difference from the underground diaphragm wall or occlusal piles is that the underground diaphragm wall or occlusal piles are distributed continuously, while the rows of piles are arranged at a certain interval, and a reinforced concrete crown beam (or It is called lock beam, cap beam), and it is reliably connected between multiple rows of piles. [0003] When the area of ​​the foundation pit is small, the side length is short and the shape of the foundation pit is close to a square, the inner support of the corner support can be used; whe...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a horizontal shear structure related to corner supports of deep and large foundation pits, aiming to solve the problem in the prior art that the supporting structure of deep and large foundation pits does not have a special structure for resisting horizontal shear force

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