Prefabricated detachable foundation pit ladder rest platform and diaphragm wall connection structure

Abstract

The invention relates to a prefabricated detachable foundation pit ladder rest platform and diaphragm wall connection structure. The connection structure comprises a rest platform, an inclined running platform, a diaphragm wall bearing, a long hole hinge, a bolt, a rest platform bearing, a diagonal bracing hinge, a diagonal bracing, an insertion pipe, a spiral support head and a tube expansion bolt, wherein the diaphragm wall bearing is fixed on the diaphragm wall through the tube expansion bolt as an embedded part; and the long hole hinge is welded on the rear end part of the rest platform, and is connected with the diaphragm wall bearing through the bolt, so that the rear end part of the rest platform is connected with the diaphragm wall. The rest platform bearing is welded on the lower edge of a side rib of the rest platform; the diagonal bracing hinge is welded on the upper end of the diagonal bracing, and is connected with the rest platform bearing through the bolt; the insertion pipe is inserted into the lower end of the diagonal bracing; the spiral support head is inserted into the insertion pipe; and the diagonal bracing hinge is welded on the lower end of the spiral support head, and is connected with the diaphragm wall bearing anchored on the lower part of the diaphragm wall through bolt. The invention provides a safe and reliable prefabricated steel ladder for rapidly, conveniently and economically erecting a passage for construction in a deep foundation pit.

Description

technical field [0001] The invention relates to the manufacture and installation of a prefabricated and detachable steel climbing ladder in the construction of a deep foundation pit, in particular to a connection structure between a prefabricated and detachable foundation pit climbing ladder rest platform and a ground connection wall. Background technique [0002] For a long time, the vertical passages of deep foundation pit construction have mostly used scaffolding steel pipes to build temporary ladders. The rigidity is small and the deformation is large. It is not convenient for workers to carry tools and materials up and down. It is neither standardized nor safe, and it is difficult to meet the standard requirements of civilized construction; There is a precedent for integral ladders welded by section steel on site, but the erection speed is slow, and the one-time investment is large, which is not convenient for disassembly and turnover, which consumes funds and increases ...

AI Technical Summary

Problems solved by technology

However, in general, the verticality and flatness of the side wall of the ground connection wall are difficult to meet the accuracy requirements for the installation of the prefabricated steel structure ladder.

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