Self-propelled movable inverted arch trestle

Abstract

The invention provides a self-propelled movable inverted arch trestle. According to the self-propelled movable inverted arch trestle, the left-right position of an inverted arch formwork system and abridge main body can be adjusted through a transverse movement hydraulic oil cylinder, the front-rear position of the inverted arch formwork system can be adjusted through a trestle travelling mechanism, and the vertical height of the inverted arch formwork system can be adjusted through a lifting mechanism on the inverted arch formwork system, so that the positioning of the inverted arch formworksystem is more accurate and faster, and construction requirements of high standards can be met. In addition, the inverted arch formwork system can realize the inverted arch operation construction ofa whole tunnel with the same section after being installed at a time, formwork assembly and disassembly are omitted, movement and positioning are mechanically controlled in a full-automatic mode, thelabor intensity of workers is greatly reduced, the labor cost is saved, and the construction efficiency and the construction quality are improved.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a self-propelled mobile inverted arch trestle. Background technique [0002] During tunnel construction, the tunnel is narrow and the construction space is small, which leads to the concentration of construction surfaces. Due to the limitation of space size, the tunnel construction procedures are closely related to each other, which has a great impact. For example, the mutual interference between the construction feed of the inverted arch formwork and the slag excavated from the tunnel face makes the tunnel construction efficiency low and the safety is greatly affected. The traditional method is generally to use simple I-beams for welding, welded into a simple arched bridge, and simply placed between the poured inverted arch formwork and the floor to be excavated as an inverted arch formwork trestle. The traditional method is The fixed structure has poor adaptability...

AI Technical Summary

Problems solved by technology

For example: the mutual interference between the construction feed of the inverted arch formwork and the slag excavation of the tunnel face makes the tunnel construction efficiency low and the safety is greatly affected

The traditional method is generally to use simple I-beams for welding, welded into a simple arched bridge, and simply placed between the poured inverted arch formwork and the floor to be excavated as an inverted arch formwork trestle. The traditional method is The fixed structure has poor adaptability and flexibility. Not only is it difficult to control the construction quality of the inverted arch formwork, but also the excavation and lining cannot be carried out simultaneously, resulting in high labor intensity, frequent safety accidents, and very low construction efficiency, which greatly slows down the tunnel construction speed.

In order to complete the task, the construction company has to intensively allocate resources in the narrow space of the tunnel. While advancing the excavation of the tunnel face alone, it cannot take good care of the good progress of other working faces, which makes it difficult to ensure the follow-up of the secondary lining

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