Anchor point structure of foundation pit support and arrangement method thereof

Abstract

The invention provides a method for arranging an anchor point structure of a foundation pit support. The method comprises the following steps of fixing a flexible steel wire rope to a reinforcement cage, wherein the flexible steel wire rope comprises a U-shaped bending section which is exposed on the outer side of the reinforcement cage, and a magnet is arranged on the U-shaped bending section; wrapping the U-shaped bending section and the magnet with a protective shell so as to form a wrapping body, bending the wrapping body upwards, and putting down the reinforcement cage; grouting a pile hole so as to form a pile body after solidification; detecting on the outer side of the pile body by adopting a detection device, and determining the position of the magnet, wherein the position, which corresponds to the magnet, of the pile body is an anchor point position; and removing concrete on the pile body at the anchor point, so that the wrapping body is exposed, and removing the protective shell on the wrapping body, so that the U-shaped bending section is exposed, and the anchor point is correspondingly formed by the U-shaped bending section. The invention further provides the anchor point structure of the foundation pit support. The anchor point structure formed by the arrangement method of the anchor point structure of the foundation pit support has the advantage of high reliability.

Description

technical field [0001] The invention relates to the technical field of foundation pit construction, in particular to an anchor point structure for foundation pit support and a setting method thereof. Background technique [0002] The tension of urban land use has prompted the continuous expansion of buildings and structures into underground space, accelerated the development of urban underground space, and led to the development of larger and deeper urban foundation pit excavation scales. Due to many factors, the foundation pit has been placed for too long or the surrounding conditions of the foundation pit have changed, resulting in excessive deformation in the horizontal direction of the foundation pit, far exceeding the limit value given by the code, which may easily lead to safety accidents at the construction site. Therefore, it is necessary to set up a supporting structure during the construction of the foundation pit. [0003] In the related art, the usual way of fou...

AI Technical Summary

Problems solved by technology

In the usual practice, the diagonal braces are directly placed on the wall of the foundation pit. This method is easy to operate, but since no anchoring structure is installed, the diagonal braces are easy to slip during the support process, which affects the safety of use.

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