Slurry balance shield machine with freezing function

Abstract

The invention discloses a slurry balance shield machine with the freezing function. A freezing unit, a storage tank and a heating device are independently arranged or are added to an accessory system behind the slurry balance shield machine; freezing circulation pipes are added in a cutter head or on the side face of the cutter head, or in a shield body or on the outer side of the shield body, and therefore liquid, semi-liquid and solid substances within a certain range around the cutter head, in a slurry warehouse and around the shield body can be frozen. Heating pipelines are additionally arranged on the side, close to an air cushion chamber, of a front partition plate, high-temperature heat conduction liquid is input into the heating pipelines and the freezing pipelines through the heating device, and therefore a main driving unit and a center rotating connector can be protected and a frozen area can be molten. The slurry balance shield machine with the freezing function performs maintaining operation under the normal pressure work condition, and the phenomenon of entering the warehouse for tool changing under pressure in the maintaining process of the slurry balance shield machine is avoided.

Description

technical field [0001] The invention relates to a shield machine, in particular to a mud-water balance shield machine used in the field of tunnel engineering. Background technique [0002] 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. . During the construction process of the mud-water balance shield machine, the cutterhead, the cutter above it, and the shield tail brush will experience excessive wear and leakage under the action of external forces. At this time, it is necessary to stop the machine and excavate the corresponding space so that Maintain the cutter head, repair and replace the cutter and shield tail brush, etc. At present, the opening of the mud-water balance shield machine mainly adopts the direct open...

AI Technical Summary

Problems solved by technology

When the method of direct opening under normal pressure is adopted, the face of the tunnel or the top of the excavation space is prone to permeation, and a large amount of sand is poured into the muddy water warehouse, causing major accidents; when the method of opening under pressure is used, there are difficulties in construction and technical requirements. High, expensive and other issues

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