Rectangular shield capable of flipping over at a small angle and quickly assembling rectangular segments and its assembling method

Abstract

The invention discloses a rectangular shield capable of turning over at a small angle and quickly assembling rectangular segments, which includes a shield structure, a tunneling device is arranged at the front end of the shield structure, and a slag discharge system and segment assembly are arranged in the shield structure system, a post-supporting system set at the rear of the shield structure, the segment assembling system includes two kinds of rectangular pipe joints, multifunctional trolley one, multifunctional trolley two, snatching device and movable track; multifunctional trolley one and multifunctional trolley The second functional trolley can transport the rectangular pipe sections along the movable track, and flip and assemble the rectangular pipe sections through the snatch device. The invention has a reasonable super-excavation cross-sectional area, and is a rectangular shield machine capable of flipping over at a small angle and quickly assembling a rectangular segment of a rectangular shield, so that the rectangular segment can be turned over at a small angle in the shield body, and has half the number of tube segments Small, limited over-excavation area, flexible and simple segment assembly and high degree of mechanization, it is a simple and efficient rectangular shield equipment with safe construction and operation.

Description

technical field [0001] The invention relates to tunnel construction equipment and a method of use, in particular to a rectangular shield capable of turning over at a small angle and quickly assembling rectangular segments and an assembling method. Background technique [0002] With the sustained and stable growth of my country's economy, the further acceleration of urbanization and the enhancement of environmental protection awareness, the demand for underground pipelines in my country is also increasing year by year. Shield technology does not require a large number of demolition and excavation of the ground. There is no noise, no dust, and no disturbance to the people on the ground. All of them adopt automatic control, and the progress of the project is fast. Therefore, it is a method that can reduce engineering pollution and save engineering investment. It is widely used It is applied to the construction technology of subway tunnels, underground pipelines, waterlogging pr...

AI Technical Summary

Problems solved by technology

Since the rectangular section does not have the arch bridge effect when the circular section bears earth pressure, the area where the upper and lower bottom edges bear the maximum bending moment is not suitable for segment splicing nodes, and it cannot be divided into multiple parts like a circle; at the same time, the segment must be in the erected tunnel. Free transportation, if the splicing nodes are arranged on the left and right sides of the rectangular pipe section, the segment cannot be turned over in the space surrounded by excavation. If the turning space is forced to be satisfied, the over-excavation area of ​​the tunneling device will be too large and cause engineering problems. The cost is too high

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