Unlock instant, AI-driven research and patent intelligence for your innovation.

Device and method for stabilizing the face of a shield machine in normal-pressure opening operations

A technology of shield machine and face, which is used in earth-moving drilling, mining equipment, tunnels, etc., and can solve problems such as failure of opening operation and casualties of operators

Active Publication Date: 2021-05-11
CHINA COMM 2ND NAVIGATIONAL BUREAU 3RD ENG
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the safety of construction personnel opening warehouses, ground reinforcement or mud film is currently used to stabilize the working surface, but due to uncertain factors in underground engineering, the working surface is unstable, resulting in vicious accidents such as failure of opening operations and even casualties of operators still happening

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for stabilizing the face of a shield machine in normal-pressure opening operations
  • Device and method for stabilizing the face of a shield machine in normal-pressure opening operations
  • Device and method for stabilizing the face of a shield machine in normal-pressure opening operations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The present invention will be further described below in conjunction with drawings and embodiments.

[0030] figure 1 It is a schematic diagram of the structure of a shield machine used for tunneling. Its left end face is a cutter head 10 for excavating and cutting soil. The cutter head 10 is supported in the left end of the shield shell 30 through the main bearing 20. On the upper side of the middle part, there is a man cabin 401 to protect the safety of construction workers, and the obliquely arranged mud discharge pipe or screw conveyor 50 transports the soil residue generated by the cutting of the cutter head 10 to the shield tail 60 for further processing.

[0031] like Figure 2 to Figure 7 As shown, the device of the present invention includes several fan-shaped airbags 1, and the fan-shaped airbags 1 are embedded in the gap between the adjacent cutter bars 101 of the cutter head 10. Matching, the thickness of the fan-shaped airbag 1 is equal to the thickness o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a device for stabilizing the tunnel surface of a shield machine in the normal-pressure opening operation, which comprises several fan-shaped airbags, the fan-shaped airbags match the fan-shaped neutral gear between two adjacent cutter rods, and the fan-shaped airbags are located next to the air delivery pipe. Connect the pressure sensor. The anti-soil impulse mechanism is provided on the side of the fan-shaped airbag away from the tunneling surface of the shield machine, and the anti-soil impulse mechanism is arranged between two adjacent cutter bars embedded in the fan-shaped airbag at intervals along the fan-shaped radial direction, including radial rods and fixed half rings. The installation and disassembly method of the device of the present invention is as follows: 1) the fan-shaped air bag is inflated and formed after being installed in place, 2) the anti-soil momentum mechanism is installed, and 3) the fan-shaped air bag is removed after the normal pressure opening operation is completed. The fan-shaped airbag of the present invention can be used repeatedly, is very convenient to assemble and disassemble, achieves the effect of stabilizing the tunnel surface, and greatly improves the safety of the normal-pressure opening operation of the shield machine.

Description

technical field [0001] The invention relates to a safety device during shield machine operation, in particular to a device and method for stabilizing the face of a shield machine during normal-pressure opening operation during tunnel excavation construction, and belongs to the technical field of tunnel construction. Background technique [0002] Shield machine excavation has been widely used in various tunnel constructions. During the process of shield machine excavation, the cutter head of the shield machine rotates and cuts the geological layer. face. During the excavation process, when it is necessary to check the geological conditions or the wear of the cutter head under normal pressure, or to replace the cutter, the construction personnel must take great risks to personal safety and open the cabin to approach the cutter head. In order to ensure the safety of construction personnel opening warehouses, ground reinforcement or mud film is currently used to stabilize the w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E21D19/04E21D9/08
CPCE21D9/08E21D19/04
Inventor 王新龙马超张晨晨
Owner CHINA COMM 2ND NAVIGATIONAL BUREAU 3RD ENG