Die supporting system for large deep pit steep slope surface cushion layer and supporting die casting construction method thereof

Abstract

The invention discloses a die supporting system for a large deep pit steep slope surface cushion layer. An inversed four-prismatic table inner die consists of a pit bottom cushion layer, anti-floating reinforcing steel bars, a template and a steel pipe supporting frame, wherein the pit bottom cushion layer is positioned on a pit bottom; the anti-floating reinforcing steel bars are pre-buried in the pit bottom and are connected with the pit bottom cushion layer into a whole in a casting way; the steel pipe supporting frame consists of longitudinal and transverse horizontal steel pipes, vertical steel pipes and reinforcing shear supporting steel pipes; the steel pipes are built into the shape of an inverse four-prismatic table by using buckling type steel pipes; the steel pipe supporting frame is connected with the anti-floating reinforcing steel bars; the template is inverse trapeziform and is arranged on the outer sides of four inverse trapeziform inclined planes formed by the steel pipe supporting frame; the bottom line of the template is fixed to the pit bottom cushion layer; a reinforcing ring consisting of concrete building blocks is arranged on the pit bottom cushion layer and around the outer side of the template. By the supporting die casting construction method of the die supporting system for the large deep pit steep slope surface cushion layer, the traditional construction method of the large deep pit steep slope surface cushion layer is changed, the construction method is scientific, the whole construction progress is high, and the quality is high.

Description

technical field [0001] The invention relates to a basement structure cushion construction method and a formwork support system, in particular to a formwork support system and a formwork pouring and tamping construction method suitable for cushion layers on steep slope surfaces of large deep groove pits. Background technique [0002] The basement structural cushion is an important construction link, and its construction quality has a great impact on the building structure and the subsequent basement floor waterproofing construction. [0003] In traditional construction, due to the fluidity and lack of blocking of the cushion concrete, in order to ensure that the cushion on the pit wall will not cause uneven thickness of the cushion and concrete pouring due to the flow of concrete under the action of gravity during construction. It is difficult to tamp, and it is usually necessary to set the pit walls of large pits such as elevator shaft pits and pile cap pits to a gentle slop...

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a kind of construction with less excavation of earth and stone, fast construction speed and good quality "a formwork system and formwork pouring and tamping construction method suitable for large-scale deep groove pit steep slope surface cushion" , to overcome the deficiencies of traditional construction methods, and solve the problem of difficult construction of large deep pits and steep cushions

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