Plugging method for preventing collapse in shield tunneling machine jacking process

A technology of jacking and shielding, which is applied in earth-moving drilling, mining equipment, tunnels, etc., can solve problems such as not being effectively solved, and achieve the effect of high safety and simple operation.

Inactive Publication Date: 2013-07-03
SHANGHAI QIMOU ENERGY SOURCE TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Subway or underground passages are usually excavated by shield machines, but due to the complex geological conditions underground, in order to adapt to different conditions, there are many kinds of shield machines, such as the application number 2008100390952 that I applied to the Chinese Patent Office on June 18, 2008 The relevant tunnel excavation technology is disclosed in the title of the invention "A Tunnel Excavation Method and Device That Can Prevent Collapse", but this tunnel jacking technology does not effectively solve the problem if water gushes or sand collapse occurs during jacking.

Method used

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  • Plugging method for preventing collapse in shield tunneling machine jacking process
  • Plugging method for preventing collapse in shield tunneling machine jacking process
  • Plugging method for preventing collapse in shield tunneling machine jacking process

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Embodiment Construction

[0018] Refer to attached figure 1 , with figure 1 It is a schematic diagram of the structure of a jacking cutter head used in the plugging method for preventing landslides during the jacking process of shield tunneling provided by the present invention: the front of the jacking cutter head 1 is installed with a cutter 2 . When the jacking cutter head is advanced in the tunnel, the cutter 2 is inserted into the soil.

[0019] Refer to attached figure 2 , with figure 2 It is a cross-sectional view of the principle schematic diagram of a plugging method used to prevent landslides during shield jacking provided by the present invention: at the front of the jacking cutter head 1 is a cutter 2 installed on it, and above is the cutter head top plate 5, the following is the cutter head base plate 4. Slide rail 3 is installed on cutter head bottom plate 4, and slide rail 3 rises to cutter head top plate 5 from cutter head bottom plate 4 always. The slide rail 3 is installed and ...

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Abstract

The invention discloses a plugging method for preventing collapse in the shield tunneling machine jacking process. The method comprises the following steps of installing slide rails on two corresponding side walls of a jacking cutter head of a jacking machine and a cutter head bottom plate; and installing a rolling shutter plugging door between the two slide rails. During normal excavation, the rolling shutter plugging door is positioned on the cutter head bottom plate. When water surges or soil collapses, the surged water or the soil surges from the front part of the jacking machine, then the power of a rolling shutter is started, the rolling shutter plugging door is pushed to a cutter head top plate from the cutter head bottom plate by the pushing of the power of the rolling shutter, the middle part of the jacking cutter head is plugged, and then the water and the collapsed soil are prevented from surging from the front part of the jacking machine, so the safety of tunnel excavation is ensured. The method is used for preventing the collapse in the tunnel jacking process of a shield tunneling machine, and has the advantages that operation is simple, and safety is high.

Description

technical field [0001] The invention relates to a method for preventing collapse during shield jacking, in particular to a plugging method for preventing collapse during shield jacking. technical background [0002] Now along with the congestion of urban traffic, vigorously develop underground traffic, such as the development of subway or underground car passage. Subway or underground passages are usually excavated by shield machines, but due to the complex geological conditions underground, in order to adapt to different conditions, there are many kinds of shield machines, such as the application number 2008100390952 that I applied to the Chinese Patent Office on June 18, 2008 The relevant tunnel excavation technology is disclosed in the title of the invention "A Tunnel Excavation Method and Device That Can Prevent Collapse", but this tunnel jacking technology does not effectively solve the problem if water gushes or sand collapse occurs during jacking. . Therefore, there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/00
Inventor 王武生
Owner SHANGHAI QIMOU ENERGY SOURCE TECH DEV
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