Foundation pit supporting framework for building foundation construction

Abstract

The invention belongs to the technical field of building construction equipment, and particularly relates to a foundation pit supporting framework for building foundation construction. The foundationpit supporting framework comprises a rectangular base plate, wherein the two sides of the base plate are rotatably connected with strip-shaped mounting plates; sliding plates parallel to the mountingplates are in sliding fit in the mounting plates; a strip-shaped pressing plate is fixedly arranged on the outer end surface of each corresponding sliding plate perpendicularly; an angle adjusting mechanism is arranged at the joint of each mounting plate and the base plate correspondingly; a plurality of mounting blocks for fixing supporting anchor rods are rotatably arranged at the top and the bottom of the base plate respectively through pin shafts; one ends of first connecting rods are rotatably connected to positions, corresponding to the mounting blocks, of the back surface of the base plate through pin shafts; the mounting blocks are rotatably connected with one ends of second connecting rods through pin shafts; and the ends of each first connecting rod are hinged to the ends of thecorresponding second connecting rod. According to the foundation pit supporting framework for building foundation construction, the angle can be adjusted according to different surface radians of an arc-shaped foundation pit, so that the strip-shaped pressing plates are attached to the surface of the foundation pit, and the surface of the side wall of the arc-shaped foundation pit is fully supported.

Description

technical field [0001] The invention belongs to the technical field of building construction equipment, and in particular relates to a building foundation foundation pit support formwork. Background technique [0002] In the process of building foundation construction, if the depth of the foundation pit exceeds five meters, in order to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit, it is necessary to add support to the side wall of the foundation pit, that is, to adopt support and reinforcement for the side wall of the foundation pit and protective measures. During the installation of the foundation pit support, the support pile is now inserted into the soil at the bottom of the pit to the hard soil layer, and the anchor rod is installed on the support pile, and the anchor rod is inserted into the soil on the side wall of the foundation pit to prevent the side wall of the foundation pit. The soil is fixed, ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a foundation pit support formwork for building foundation construction, and aims to solve the following problems in the use process of the existing foundation pit support formwork: (1) the support formwork is difficult to fit well with the surface of the arc-shaped foundation pit The surface of the side wall of the arc-shaped foundation pit cannot be fully supported; (2) The support template and the anchor rod are connected by threads, and the installation and disassembly are relatively stable and easy to loosen; (3) In the sand layer Or in the muddy soil layer, the support anchor rod is easy to be pressed into the soil to cause settlement, which in turn drives the support formwork to sink, seriously reducing the support effect of the support formwork on the surface of the side wall of the foundation pit

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