Shield tunneling machine muck conveying device for water-rich stratum

Abstract

The invention relates to a shield tunneling machine muck conveying device for a water-rich stratum. The shield tunneling machine muck conveying device for the water-rich stratum comprises a belt conveyor and a muck conveying device assembly, the belt conveyor comprises a three-phase motor, a conduction wheel and a conveying belt, the muck conveying device assembly comprises a hard pipe and a hose,a ball valve facing the axis direction of the hose is arranged on the hard pipe, the ball valve is in high-pressure gas conveying connection with a standard air compressor on the shield tunneling machine through an air pressure pipeline, the hard pipe is connected with a spiral conveyor on the shield tunneling machine, and the hard pipe is connected with the hose through a flange. According to the muck conveying device, the usage amount of a muck improver is effectively reduced, the construction cost is reduced, the gushing problem caused by water-rich muck in the conveying process is effectively solved, and the sewage amount in a shield tunneling machine and a tunnel is remarkably reduced.

Description

technical field [0001] The invention relates to the technical field of shield machines, in particular to a shield machine muck conveying device used in water-rich formations. Background technique [0002] The shield machine is very likely to encounter water-rich strata during tunnel excavation. When the shield machine excavates the tunnel in the water-rich stratum, due to the high water content of the muck, if the earth pressure balance shield machine is used, a screw machine and a belt conveyor are used. The mode of conveying device, then can produce following technical difficulty: [0003] 1. If the belt conveyor has an inclined section, it will not be able to convey the water rich in the muck, which will cause a large amount of sewage in the shield machine; [0004] 2. When the amount of water in the aquifer-rich layer is too large, there will be a risk of gushing during the transportation process, resulting in the defect that the tunnel will be submerged in water; [0...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems in the above-mentioned prior art that the shield machine has a large amount of sewage due to the high water content of the muck in the aquifer layer, and the tunnel submerged problem caused by gushing, the cost increase caused by the use of muck modifiers and the use of mud-water balance shield machines Due to the high cost of excavation, the present invention designs a shield machine slag conveying device for water-rich strata. The specific technical scheme is as follows:

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