Slurry balance shield tunneling machine for contact channel

Abstract

The invention discloses a slurry balance shield tunneling machine for a contact channel. The slurry balance shield tunneling machine comprises a shield tunneling machine body with a cutterhead and a propulsion driving piece, a rear matching accessory used for conveying segments to be lined to a material conveying system of a segment erector, a starting sleeve, a receiving sleeve and a starting counter-force frame; the starting sleeve and the receiving sleeve are respectively arranged in a starting end main tunnel and a receiving end main tunnel, and the shield tunneling machine body can be in sliding fit; and one end of the starting counter-force frame is attached and fixed to the tail end of the starting sleeve. According to the scheme, the shield tunneling machine is adopted to excavate the contact channel, a pushing oil cylinder does not need to be arranged on the starting counter-force frame, starting tunneling can be achieved through stretching and retracting of the pushing oil cylinder of a shield tunneling main machine, the stress condition of the supporting segments at the starting position of a main tunnel is reduced, and the risk that the segments of the main tunnel are crushed is avoided; and in addition, materials are conveyed through annular flow slag discharging and a main material conveying channel arranged in the main tunnel, so that the collaborative operation efficiency is greatly improved, the problem that the environment of the main tunnel is polluted due to the fact that a slag hopper transports slag slurry is effectively solved, the working efficiency is improved, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of tunnel construction equipment, in particular to a mud-water balance shield machine for communication passages. Background technique [0002] According to the relevant design specifications: when the length of the single line of the shield tunnel in the two single-line intervals is greater than a certain distance, a communication channel should be set up between the two tunnels to ensure fire rescue and rapid evacuation of personnel. [0003] At present, due to the large disturbance of the soil during the construction of the traditional mining method and the high energy consumption of the long-distance construction of the freezing method, the connecting passages between the shield tunnels are generally constructed by pipe jacking machines. When the pipe jacking machine is used, after the pipe joint has been jacked for a certain distance, it is necessary to disassemble and disconnect the connecting pipeline...

AI Technical Summary

Problems solved by technology

When the pipe jacking machine is used, after the pipe joint has been jacked for a certain distance, it is necessary to disassemble and disconnect the connecting pipeline between the pipe jacking head and the rear matching, add a new pipe joint again, and connect the pipeline before assembling again In this way, not only the efficiency of assembling segments is low, but also in the long-distance shield construction, the force exerted by the starting frame on the main tunnel is intensified, and there are safety hazards such as the main tunnel being crushed; while using earth pressure shield machine for operation, There are unreasonable material transportation, easy to pollute the main tunnel environment, interfere with the main tunnel material transportation, etc.

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