Ultra-large whole-circle needle beam type hydraulic steel mould trolley and demoulding method thereof

Abstract

The invention discloses an ultra-large whole-circle needle beam type hydraulic steel mould trolley for construction of an ultra-large whole-circle section tunnel with the diameter above 12m and a demoulding method of the ultra-large whole-circle needle beam type hydraulic steel mould trolley. A mould assembly of the trolley comprises a plurality of template groups which are longitudinally spliced; and in each template group, a top mould, a right side mould, a left side mould and a bottom mould form a whole-circle section, wherein two sides of the top mould are detachably connected with the left side mould and the right side mould respectively, and the top mould is connected with a beam frame assembly through a horizontal adjusting mechanism and a vertical adjusting mechanism. The demoulding method comprises the following steps of: removing connections between the top moulds and the left side moulds and between the top moulds and the right side moulds first, then withdrawing the left side moulds and the right side moulds simultaneously till demoulding, withdrawing the vertical adjusting mechanisms connected with the top moulds, demoulding the top moulds, and finally lifting the beam frame assembly and demoulding the bottom moulds. The ultra-large whole-circle needle beam type hydraulic steel mould trolley and the demoulding method thereof disclosed by the invention realize symmetrical demoulding and mould erection, can ensure stability of the ultra-large trolley, also ensures that strength and rigidity of the template accord with requirements, is convenient and practical to adjust and also provides a winding and centering mechanism suitable for the trolley.

Description

technical field [0001] The invention relates to a hydraulic steel mold trolley used for tunnel construction, in particular to a formwork system and a demoulding method of an extra-large full-circle needle beam type hydraulic steel mold trolley. Background technique [0002] According to the traditional construction technology of the industry, the current full-circle needle-beam hydraulic steel formwork trolley is mostly used for the integral lining of tunnels with small and medium-sized full-circle sections in horizontal sections (or straight and inclined sections). The full-circle needle-beam type hydraulic steel mold trolley used in the lining of the full-circle section ranges from a minimum diameter of φ2.22m to a maximum diameter of φ11.5m. According to current relevant information, the maximum diameter of the full-circle needle-beam type hydraulic steel formwork trolley that has been successfully put into use is φ11.5 meters. It was developed and designed by Guanghan Ji...

AI Technical Summary

Problems solved by technology

[0015] In order to overcome the deficiency that the existing full-circle needle-beam type hydraulic steel formwork trolley formwork structure is not suitable for extra-large full-circle sections with a diameter of more than 12 meters, the technical problem to be solved by the present invention is to provide a formwork structure applicable to Extra-large full-circle needle-beam type hydraulic steel mold trolley with extra-large full-circle section with a diameter of more than 12 meters and its demoulding method

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