Installing device for steel strand anchors in inner support system of foundation pit support

Abstract

The invention discloses a steel stranded wire anchor gear installing device and a connecting component of the steel stranded wire anchor gear installing device. The connecting component comprises H-shaped steel B, wherein the end surface at the left side of the H-shaped steel B is a transverse section and is welded and fixed with a connecting plate, the center of the connecting plate is provided with an anchor gear open hole for accommodating an anchor gear, four screw bolt holes B are formed around the anchor gear open hole, the end surface at the right side of the H-shaped steel B is a transverse section and is welded and fixed with a connecting flange C, the connecting flange C is provided with four flange holes, the four flange holes are in square four-corner distribution, the side length of the square is 200mm, the diameter of each flange hole is 28mm, the left side of a web plate of the H-shaped steel B is sunken to form an anchor gear open groove used for accommodating the anchor gear, a plurality of connecting holes C are respectively formed in the front and back side wing plates of the H-shaped steel B, the four connecting holes C on each side wing plate are in rectangular four-corner distribution, the length of the rectangle is 200mm, the width of the rectangle is 100mm, and the diameter of each connecting hole C is 28mm. The steel stranded wire anchor gear installing device and the connecting component adopting the technical scheme have the advantages that the dismounting and the mounting are convenient, the repeated utilization for many times can be realized, and the goals of reducing the construction cost and realizing the convenient construction can be realized.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a steel strand anchor installation device for an inner support system of foundation pit support. Background technique [0002] In soft soil deep foundation pit engineering, reinforced concrete or steel pipe supports the support structure. In order to reduce the deformation of the foundation pit and increase the stability, the commonly used methods are: increase the size of the reinforced concrete purlin street surface, increase the number of steel pipe supports, Reduce spacing etc. But this will greatly increase the consumption of building materials and also reduce the effective construction space in the foundation pit. Since the steel support structure currently used mainly uses a single section steel or steel pipe as a support beam, there is no effective connection between each section steel or steel pipe, and it cannot work as a composite structure, so their support...

AI Technical Summary

Problems solved by technology

Since the steel support structure currently used mainly uses a single section steel or steel pipe as a support beam, there is no effective connection between each section steel or steel pipe, and it cannot work as a composite structure, so their support stiffness is relatively low. The force it can withstand is relatively limited. For foundation pits with large spans, it is difficult to control their deformation with the current steel support support

Because many of these supports are made according to the requirements of on-site construction, there is no standardized connection size, and the purpose of interchangeability and universal use between various parts cannot be achieved. After the foundation pit construction is completed, most of the support parts have become disposable consumables. , cannot be reused

[0003] At present, after the foundation pit support is completed, there is no prestress application process, or adding supports, which cannot further improve the overall stiffness of the support system after the support system is assembled.

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