Negative ring introducing device for super-large-section quasi-rectangular pipe jacking construction steel structure

Abstract

The invention relates to a negative ring introducing device for a super-large-section quasi-rectangular pipe jacking construction steel structure. The problems that in the prior art, in the process that a pipe jacking main machine is jacked out of a hole, a concrete prefabricated pipe joint serves as a negative ring, the manufacturing cost is high, the production period is long, the post-treatment difficulty is large, the treatment hoisting risk is high, and the turnover performance is low are effectively solved. According to the technical scheme, the device comprises a plurality of sets of single-ring steel structures which are detachably connected front and back, each set of single-ring steel structure is slidably connected into two sliding rails fixedly connected to the ground, each set of single-ring steel structure comprises vertical supports slidably connected into the two sliding rails, the lower ends of the two vertical supports are detachably connected with arc-shaped bottom supports, the two bottom supports are connected through a connecting beam, and the two vertical supports are detachably connected with steel supports. The device is simple in structure, convenient to operate and capable of effectively achieving turnover and recycling of the jacking pipe negative ring, so that the manufacturing cost and the using cost of the negative ring are greatly reduced, later turnover hoisting is easy, and practicability is high.

Description

technical field [0001] The invention relates to the technical field of pipe jacking equipment, in particular to a device for referencing the negative ring of a super-large-section rectangular pipe jacking construction steel structure. Background technique [0002] In recent years, with the improvement of the degree of urbanization, the urban population is increasing day by day. In order to alleviate the traffic congestion, many cities need to build elevated roads or tunnels as fast passages. In order to avoid damaging the environment and affecting the current traffic, tunnels planned and designed on urban arterial roads are not suitable for open-cut construction, but can only be constructed by underground excavation. Rectangular pipe-jacking tunnel construction has a high utilization rate of underground space, and can realize shallow-covered soil jacking construction. At present, most of the super-large-section pipe jacking machines are rectangular-shaped pipe jacking machi...

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Problems solved by technology

[0007] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a device for referencing the negative ring of the super-large-section rectangular pipe jacking construction steel structure, which effectively solves the concrete As a negative ring, prefabricated pipe joints have the problems of high cost, long production cycle, difficult post-processing, high risk of hoisting and low turnover

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