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Apparatus for reducing friction resistance between shield machine shield body and tunneling wall

A technology for excavating tunnels and friction resistance, which is applied in tunnels, mining equipment, earthwork drilling and mining, etc. It can solve the problems of increasing manufacturing costs, increasing the starting torque of the main propulsion motor, and not being able to reduce the power consumption of main propulsion friction resistance

Inactive Publication Date: 2008-11-05
SHENYANG HEAVY MACHINERY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this manufacturing method guarantees the requirements for the use of the shield, it cannot reduce the power consumption of the frictional resistance of the main propulsion. On the contrary, the starting torque of the main propulsion motor increases, and increases the manufacturing cost.

Method used

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  • Apparatus for reducing friction resistance between shield machine shield body and tunneling wall
  • Apparatus for reducing friction resistance between shield machine shield body and tunneling wall

Examples

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Embodiment Construction

[0010] Referring to the accompanying drawings, the device for reducing the frictional resistance between the shield body of the shield machine and the wall of the excavated tunnel includes a shield body 1, a steel pipe 2, a valve 3, a lubricant pipeline 4, a distributor 5, a pipeline 6, a first Control valve 7, second control valve 8, foam system pipeline 9, bentonite mud system pipeline 10, tunnel wall 11, lubricant 12, one end of the valve 3 is connected with the steel pipe 2 welded on the inner side of the shield body 1 and connected with the excavation The tunnel wall 11 communicates, and the other end is connected with the lubricant pipeline 4, and the lubricant pipeline 4 passes through the distributor 5, the pipeline 6, the first control valve 7, the second control valve 8 and the foam system pipeline 9 of the shield machine 1. The bentonite mud system pipeline 10 is connected, the steel pipe 2 communicates with the excavated tunnel wall 11 through the hole of the shield...

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Abstract

A device for reducing the frictional resistance between the shield machine shield body and tunneling wall applied in the technical field of tunnel driving; the device comprises shield body, steel pipe, valve, lubricant pipeline, distributor, pipeline, first control valve, second control valve, foam system pipeline, bentonite slurry system pipeline, tunnel wall and lubricant; one end of the valve is connected with the steel pile welded in the inside of the shield body and communicated with the tunneling wall; the other end of connected with the lubricant pipeline; the lubricant pipeline is communicated with the foam system pipeline and bentonite slurry system pipeline of the shield machine through the distributor, pipeline, first control valve and second control valve; the steel pipe is communicated with the tunneling wall through the hole of the shield body; the lubricant is injected between the tunnel wall and the shield body; when needs to injecting the lubricant, the valve is opened to inject the lubricant between the shield body and the tunneling wall. The conception of the device is novel and scientific; the device for injecting the lubricant between the shield body and the tunneling wall is able to effectively reduce the sliding friction resistance between the shield body and tunneling wall.

Description

Technical field: [0001] The invention relates to reducing the frictional resistance of the initially excavated tunnel wall to the shield body when the full-section tunnel boring machine starts and advances forward in the technical field of tunnel excavation, reduces the abrasion of the tunnel wall to the shield body, and reduces the reduction of the starting torque of the motor of the propulsion system. A device for frictional resistance between the shield body of the small shield machine and the wall of the excavated tunnel. Background technique: [0002] At present, the shield machine is a tunneling equipment developed in recent years. The shield body of the shield machine is equipped with fixed protection equipment, and at the same time supports the newly dug tunnel wall to prevent the tunnel from collapsing and prevent seepage water from entering the shield body. The shield body of the shield machine is usually made into a cylindrical shell with a closed circumference. T...

Claims

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Application Information

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IPC IPC(8): E21D9/06
Inventor 高伟贤马汉春张硕极
Owner SHENYANG HEAVY MACHINERY GROUP
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