Convex large cutter head and slurry balance pipe jacking machine

Abstract

The invention provides a convex large cutter head and slurry balance pipe jacking machine which comprises a grid cutter head. The grid cutter head comprises an outer margin plate, a plurality of longrib plates, an annular center side plate, an annular sub-center side plate and a plurality of short rib plates, the outer margin plate covers the front end of a slurry bin and is rotatably connected to the front end of the slurry bin, the long rib plates are uniformly distributed in an internal space of the outer margin plate by taking the axis of the outer margin plate as a center, one end of each long rib plate is connected with an inner loop surface of the outer margin plate, the center side plate is positioned at the center of the outer margin plate and coaxial with the outer margin plate,the other end of each long rib plate is connected with an outer loop surface of the center side plate, the sub-center side plate is positioned between the outer margin plate and the center side plateand coaxial with the outer margin plate, the long rib plates fixedly and alternately pass the sub-center side plate, and two ends of each short rib plate are connected with the inner loop surface ofthe outer margin plate and the outer loop surface of the center side plate. The convex large cutter head and slurry balance pipe jacking machine can meet the tunneling requirements of complicated soillayers such as soil layers with weakly weathered scattered stone pieces discontinuously appearing below 50 square centimeters, and deviation can be automatically rectified.

Description

technical field [0001] The invention relates to a mud-water balanced pipe jacking machine, in particular to a large convex cutter head and a mud-water balanced pipe jacking machine. Background technique [0002] As a construction method of underground excavation, pipe jacking construction has many advantages, such as small footprint; underground construction does not affect ground activities; when crossing obstacles such as railways, highways, rivers, and buildings, it can reduce the workload of demolition along the line; During the construction process, the existing pipelines and structures will not be damaged, and the normal use will not be affected; the construction will be noiseless and reduce environmental pollution along the line. Therefore, pipe jacking construction technology has been widely used in recent years. The laying of upper and lower sewers, gas, electric power, communication engineering, liquefied petroleum gas, natural gas pipelines and various communicat...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a large convex cutter head and a mud-water balance pipe jacking machine, which is used to solve the problem that the existing cutter head may lack sufficient strength when passing through complex soil layers containing boulders or part of the hard stratum. When the head of the pipe jacking machine is jacking into the construction, it is easy to be deflected due to uneven force on the excavation surface

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