Laser-oriented control system and method for shield machine

Abstract

The invention discloses a laser-oriented control system and method for a shield machine. The method comprises the following steps: measuring the coordinate of a prism under a ground coordinate system in the shield machine by a laser total station instrument; determining the attitude parameter of the shield machine by a laser receiving target and a sensor; calculating the coordinates of a tool bit centre point, a middle folding point of the shield machine and a shield tail centre point under the ground coordinate system by a controller; determining the axial offset amount of the tool bit centre point, the middle folding point of the shield machine and the shield tail centre point relative to a tunneling plan line; revising and fitting the tunneling curve of the shield machine by the controller; and controlling the shield machine to tunnel by the controller. According to the technical scheme disclosed by the invention, the degree of automation and the construction efficiency of the traditional control survey system are greatly improved on the premise of guaranteeing the measurement precision and stability, and the engineering expenditure can be greatly saved.

Description

technical field [0001] The invention relates to the field of precision engineering machinery, in particular to a laser guiding control system and method for a shield machine. Background technique [0002] Shield machine (full name "shield tunnel boring machine") is a kind of construction machinery used for tunnel boring. The shield machine integrates optical, mechanical, electrical, hydraulic, sensing, and information technologies. It has the functions of excavating and cutting soil, conveying soil muck, assembling tunnel lining, and measuring and guiding deviation correction. It involves geology, civil engineering, machinery, mechanics, Hydraulic, electrical, control, measurement and other technologies. [0003] With the development and maturity of laser, computer and automatic control technologies, shield tunneling construction technology has made a new leap. The laser guidance system is a system that integrates measurement, instrumentation and computer software and hard...

AI Technical Summary

Problems solved by technology

[0004] However, the current construction equipment does not have automatic measurement and control functions, and the measurement and control operations during the construction process need to be manually operated based on experience, which has a direct impact on the construction progress and construction quality

On the other hand, the existing shield machine control and measurement system does not have the function of automatic deviation correction, which has a great impact on the efficiency of construction

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