A kind of tunnel boring machine turning radius control method and control system

Abstract

The invention discloses a tunnel excavating machine turning radius control method. The tunnel excavating machine turning radius control method comprises the steps that a deviation e between an actualexcavating curve and a proposed design curve of an excavating machine is detected; and the number of oil cylinders participating in controlling the excavating machine turning process is controlled according to the numerical value of the deviation e. According to the tunnel excavating machine turning radius control method provided by the invention, the number of the oil cylinders participating in controlling the excavating machine turning process can be controlled according to the deviation e, compared with manual operation and judgement in the prior art, the judgment criterion is quantified, tunnel excavating machine turning radius automation control can be realized, appearance of errors due to human operations is avoided, the tunnel excavating machine turning radius control accuracy is improved, and meanwhile, the human cost is saved. The invention further discloses a control system for implementing the tunnel excavating machine turning radius control method.

Description

technical field [0001] The invention relates to the technical field of tunnel excavation, in particular to a method for controlling the turning radius of a tunnel boring machine. In addition, the present invention also relates to a control system for implementing the above method for controlling the turning radius of the tunnel boring machine. Background technique [0002] The full-section hard rock tunnel boring machine is a factory-like tunnel construction equipment that integrates mechanical, electrical, hydraulic, optical, and gas systems. During tunnel design and planning, due to terrain, rivers, and other reasons, it is inevitable that some turns will be made, and the turning radius The smaller the size, the higher the requirements for the spatial structure design and control method of the roadheader. Usually, the roadheader is required to meet the turning radius of 500m, and in some cases it is required to meet the turning radius of 300m or even smaller. [0003] At ...

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Problems solved by technology

[0003] At present, the ultra-small turning radius control of roadheaders is mainly based on manual operation, which is intermittently adjusted according to the data and experience of the guidance system. The operation accuracy is greatly affected by personal factors such as the operator's ability, experience, physical condition, and emotion. The quality is difficult to guarantee; and due to the influence of non-uniform strong loads during the excavation process of the equipment, there is a deviation between the actual excavation trajectory and the planned axis, and the deviation is not the same under different geological conditions. There is a strong coupling between systems such as the steel arch system and the steel arch system, and it is difficult to comprehensively consider various construction safety constraints. The traditional manual ultra-small turning radius control method tends to be conservative, and cannot respond effectively to the excavation trajectory, and the control accuracy is low. Construction Difficult to guarantee quality It is becoming less and less suitable for complex geological environment and high construction requirements

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