Plugging method for preventing collapse in shield tunneling machine jacking process

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...

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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.

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