Semi-circular pipe jacking machine and construction method

Abstract

The invention relates to a semi-circular pipe jacking machine and a construction method. The semi-circular pipe jacking machine comprises a shield body; a swinging cutter head is installed at the advancing end of the shield body; a cutter head driving device is arranged in the shield body and drives the swinging cutter head; the cutter head driving device comprises a driving machine and a rocker set connected with an output shaft of the driving machine; the swinging cutter head comprises a plurality of cutter head main beams in an annular array; linear array cutters are arranged on the cutter head main beams; the end, pointing to the circle center of the swinging cutter head, of each cutter head main beam is connected with a center flange; and each center flange is rotationally connected with the rocker set of the cutter head driving device and is driven by the rocker set to swing back and forth. According to the semi-circular pipe jacking machine and a tunneling method thereof, short-distance tunneling construction under multiple modes of soil pressing, muddy water and the like can be adopted; the machine and the method can be widely applied to urban highway tunnels and contact channels in the tunnels; and compared with a traditional circular section, the section utilization rate is higher, the economic performance is better, the operation is simple and implementation is easy.

Description

technical field [0001] The invention relates to the technical field of underground boring machine production and manufacturing, in particular to a semi-dome pipe machine and a construction method. Background technique [0002] With the development of underground space, pipe jacking machine, as an underground construction equipment, has been widely used in underground highway tunnels, power tunnels, cross-street passages, and subway station exits due to its simple structure, safety and high efficiency, and good economic performance. Channels, comprehensive pipe corridors and other projects are under construction. [0003] At present, most of the pipe jacking machines used in tunnel construction at home and abroad have circular cross-sections, but due to the low utilization rate of their cross-sections, pipe jacking machines with rectangular, oval, horseshoe and other special-shaped cross-sections have gradually been developed in the market. The cost is directly proportional ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the pipe jacking machines used in tunnel construction at home and abroad have circular cross-sections, but due to the low utilization rate of their cross-sections, pipe jacking machines with rectangular, oval, horseshoe and other special-shaped cross-sections have gradually been developed in the market. The cost is directly proportional to the cutting section of the excavation equipment, that is to say, the economic cost of these special-shaped pipe jacking machines is higher than that of the circular section pipe jacking machines

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