An anti-subsidence method for the shield machine to pass through the taxi runway of the airport

Abstract

The invention relates to an anti-subsidence method for a shield machine to cross an airport taxiway, which mainly includes the following steps: determining the travel route of the shield machine; determining the affected area of ​​the shield machine's travel route; An operation well is dug outside; a reinforcement channel is dug in the operation well, and the reinforcement channel is parallel to the traveling route of the shield machine; and an upward thrust is applied to the airport runway in the reinforcement channel to resist the airport runway during the progress of the shield machine of settlement. The invention is used for foundation reinforcement in the process of the shield tunneling machine crossing the airport runway, and can reinforce the airport runway in the construction process of the shield tunneling machine, so that the airport can operate normally during the construction period.

Description

technical field [0001] The invention relates to the technical field of underground construction, in particular to an anti-subsidence method for a shield machine to cross an airport taxiway. Background technique [0002] The subway is a rail transit facility that uses electric traction in urban transportation. With the continuous development and extension of urban subways, the subways in many cities have been connected to the airport, and the transportation network has become increasingly developed. From the perspective of time, airplanes and airports appeared earlier than subways. Therefore, in the planning process of subways, not only the location of the airport, but also the layout and facilities of the airport should be considered. [0003] Subway construction methods include open-cut method, underground excavation method, drill-and-blast method and shield method, etc. For the construction of underground tunnels in airports, only the underground excavation method and shie...

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Problems solved by technology

[0003] Subway construction methods include open-cut method, underground excavation method, drill-and-blast method and shield method, etc. For the construction of underground tunnels in airports, only the underground excavation method and shield method can be used, because the open-cut method will damage the ground, and drilling Explosions cause irreversible damage to structures

[0004] The construction speed of the underground excavation method is slow and the construction period is long, which cannot meet the overall construction period requirements. The construction speed of the shield tunneling method is fast and can guarantee the construction period, but in the process of crossing the airport runway, it will affect the structural strength of the airport runway, which will affect the airport. normal operation of

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