Inside and outside general bridge girder erection machine for high speed railway tunnel and girder erecting technology thereof

Abstract

The invention discloses an inside and outside general bridge girder erection machine for a high speed railway tunnel and a girder erecting technology thereof. Double girders (3) of the bridge girder erection machine are provided with two smooth hanging girder crown blocks (2); the front ends of double girders (3) are provided with front landing legs (4) and assistant landing legs (5); the tail parts of the double girders (3) are provided with rear landing legs (1) which can tilt and can support on the girders at two sides of a concave-volume tyre girder transportation car (6) after falling down; and the feet of the rear landing legs (1) are provided with travelling mechanisms which travel along the rails of the upper cover plates of girders (6-6) at two sides of the concave-volume tyre girder transportation car (6). The bridge girder erection machine feeds girders in a rear cantilever type, passes through holes in a front cantilever type, and transfers, packs and travels among bridges. The inside and outside general bridge girder erection machine can finish girder erection operation in and out of the high speed railway tunnel, can change the traditional bridge erection process into the simple bridge erection process, and has the advantages of high bridge girder erection efficiency, reliable safety performance and the like. Thus, the inside and outside general bridge girder erection machine solves the bottleneck problem for erecting prestressing force box-type concrete girders when the high speed railway is built in mountainous areas.

Description

Technical field [0001] The invention relates to a railway bridge erection equipment and a beam erecting process, in particular to a universal bridge erecting machine inside and outside high-speed railway tunnels and a beam erecting process. Background technique [0002] With the development of my country's high-speed railway construction, my country's high-speed railway has begun to enter the age of mountainous areas, such as the Great Southwest. To build high-speed railways in these areas is a tunnel through a bridge, which is connected by a bridge and tunnel, which is a must in the world. The objective situation is that there may be a bridge anywhere in the tunnel (across the karst cave section). Most of the existing bridge erecting machines are only suitable for erecting beams in plain areas. They cannot erect beams in the tunnel. Even the erection of beams at the entrance and exit of the tunnel and the passage through the tunnel are difficult and require very complicated dis...

AI Technical Summary

Problems solved by technology

However, most of the existing bridge erecting machines are only suitable for erec...

Images