Ultra-high-pressure hydraulic auxiliary rock breaking TBM (Tunnel Boring Machine) cutterhead

Abstract

The invention discloses an ultra-high-pressure hydraulic auxiliary rock breaking TBM (Tunnel Boring Machine) cutterhead. The ultra-high-pressure hydraulic auxiliary rock breaking TBM cutterhead comprises a TBM cutterhead body, wherein the TBM cutterhead body consists of a cutterhead, disc cutters arranged on the working face of the cutterhead, and four slag collection buckets uniformly distributed at the edge of the working face of the cutterhead; a plurality of nozzles are arranged on the working face of the cutterhead and are respectively close to running track coils; a water supply swivel joint, a power supply communication swivel joint used for being electrically connected with a TBM main control room, and a cutterhead fixing rack are arranged at the back of the cutterhead; a central control unit consisting of an ultra-high-pressure hydraulic filter, a preposed water supply pump, a booster pump, a pressure storage tank, a power motor and an electric control system is arranged on the cutterhead fixing rack; the power supply communication swivel joint is electrically connected with the power motor and the electric control system through a power supply circuit and a communication circuit. According to the ultra-high-pressure hydraulic auxiliary rock breaking TBM cutterhead, the injection speed of the disc cutters is improved, the injection thrust is reduced, the machine body thrust structural arrangement is simplified, and the running maintenance cost of TBM equipment and the project investment are reduced.

Description

technical field [0001] The present invention relates to a tunnel boring machine (TBM: Tunnel Boring Machine), in particular to an ultra-high pressure hydraulic assisted rock-breaking TBM cutter head. Background technique [0002] Nowadays, in cross-basin and cross-region water diversion and diversion projects, long tunnels (such as the tunnel length of more than 200km in the South-to-North Water Diversion West Route Project) are often the first choice for water diversion (conveyance) structures. Under the constraints of terrain and geological conditions , in order to increase the speed of tunnel construction and shorten the construction period, the preferred construction scheme mostly adopts TBM construction. Traditional TBM cutterheads such as Figure 6 As shown, it consists of a cutterhead 1.1, a plurality of disc-shaped hobs 2.1 arranged on the working surface of the cutterhead 1.1, and four slag collecting buckets 3.1 evenly distributed on the edge of the working surface...

AI Technical Summary

Problems solved by technology

This makes the construction period of long tunnels generally as long as several years to more than ten years, which seriously restricts the construction period of the project.

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