Shield cutter head with refrigeration function and shield tunneling machine

Abstract

The invention discloses a shield cutter head with a refrigeration function and a shield tunneling machine. The shield cutter head with the refrigeration function comprises a disc-shaped cutter head body composed of a plurality of spoke beams and a refrigeration pipeline arranged on the cutter head body. The spoke beams are composed of the multiple main spoke beams and the multiple secondary spoke beams which are distributed in a radial mode with the center of the cutter head body as the center and are arranged alternately. The inner ends of the secondary spoke beams are connected with the adjacent main spoke beams through a main ring beam, and the outer ends of the secondary spoke beams are connected with the outer ends of the adjacent main spoke beams through a ring beam. The back portions of the multiple main spoke beams and the secondary spoke beams are all provided with cooling liquid passages distributed in the length direction, and the cooling liquid passages formed in the back portions of the main spoke beams and the secondary spoke beams sequentially communicate according to the distribution mode of the main spoke beams and the secondary spoke beams to form the refrigeration pipeline. The shield tunneling machine comprises the above-mentioned cutter head. Construction is carried out through a freezing method in the space needing chamber opening under pressure. After the high-pressure area like a tunnel face is frozen, cutter replacement and repair work is carried out, and convenience is brought to construction.

Description

technical field [0001] The invention relates to a shield machine cutter head and a shield machine, in particular to a shield machine cutter head and a shield machine with a freezing function. Background technique [0002] In the field of underground engineering, the application of shield method construction is more and more extensive. Shield machines in underground engineering are bulky and heavy, and the underground working space is limited. The mud-water balance shield machine is a special construction machine for tunnel excavation. It has the functions of excavating and cutting soil, conveying sludge, assembling tunnel lining, etc. It has been widely used in tunnel projects such as subways, railways, highways, municipalities, and hydropower. . [0003] At present, the opening of the mud-water balance shield machine mainly adopts the direct opening method under normal pressure and the opening under pressure method. When the direct opening method under normal pressure is ...

AI Technical Summary

Problems solved by technology

[0003] At present, the opening of the mud-water balance shield machine mainly adopts the direct opening method under normal pressure and the opening under pressure method. When the direct opening method under normal pressure is adopted, the tunnel face and the top of the excavation space are prone to permeation and carry a large amount of sediment Entering the mud tank, causing a major accident

Using the method of opening the warehouse under pressure, there are problems such as difficult construction, high technical difficulty, and high cost.

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