Smart control method for shield tunneling rectification

Abstract

The invention provides a smart control method for shield tunneling rectification. The smart control method comprises the following steps: acquiring real-time data of shield posture and shield tail gapthrough an automatic measuring system, and transmitting real-time data to a smart control module; performing characteristic quantity extraction according to the real-time data, and performing basic parameter calculation to obtain a rectification curve and a shield advancing distance, and controlling a jack oil cylinder to output oil pressure through a controller for adjusting the shield posture of a shield tunneling machine, so that the shield posture tends to be a target posture; after shield advancing for a certain distance, keeping the current output oil pressure, extending the shield tunneling machine posture to a next adjusting distance, calculating the difference between the shield tunneling machine posture and the rectification curve to obtain a rectification assessment amount, adding the rectification assessment amount into the shield tunneling advancing distance in the next adjustment of posture, and storing the output oil pressure and shield posture change condition througha history database module. The smart control method has higher universality, can be suitable for the rectification control of various shield tunneling, and can be applied to early warning of accidentspossibly caused by abnormal operation.

Description

technical field [0001] The invention relates to the technical field of deflection correction of shield tunneling machines, in particular to an intelligent control method for deflection correction of shield tunneling. Background technique [0002] The full name of the shield machine is the shield tunnel boring machine, which is a special construction machine for tunnel boring. The shield boring machine has been widely used in subway, railway, highway, municipal, hydropower and other tunnel projects. The basic working principle of the shield machine is a cylindrical steel component, which is pushed forward along the axis of the tunnel while excavating the soil. The shell of the cylindrical component is the shield, which acts as a temporary support for excavating the unlined tunnel section, bears the pressure of the surrounding soil layer, and sometimes bears the pressure of the groundwater and keeps the groundwater out. Do it under the cover of a shield. The shield construct...

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Problems solved by technology

[0010] In view of the above situation, the present invention provides an intelligent control method for deflection correction in shield tunneling, which solves the problem that the existing deflection correction system only gives the deflection correction control amount, does not evaluate the deflection correction effect, does not have deep learning function and the existing deflection correction system only For the deflection correction control of a specific type of shield, there is no general technical problem

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