Tunnel boring machine cutterhead starting torque calculation method based on data driving

Abstract

The invention provides a tunnel boring machine cutterhead starting torque calculation method based on data driving. The problem that the cutterhead starting torque of an existing tunnel boring machine is difficult to accurately estimate is solved. The method comprises the following steps of: acquiring real-time data of a current tunneling circulation tunneling machine in a propelling process according to a set frequency, wherein the real-time data comprises a cutter torque, a propelling speed and a cutter rotating speed; extracting a data segment of the current tunneling cycle from cutterhead starting to the position of a first point of which the propulsion speed is greater than 0; removing data of which the rotating speed of the cutterhead does not reach a constant value, wherein the remaining data are target data segments; and averaging the cutterhead torque of the target data segment to obtain the cutterhead starting torque. According to the method, the cutterhead starting torque is directly judged according to data characteristics, a sensor does not need to be additionally arranged or a test bed does not need to be installed, calculation is simple, and the method is used for assisting a driver in evaluating whether the cutterhead starting torque is abnormal or not and the cutterhead on-load starting degree and can assist in judging the slag condensation degree of the cutterhead in viscous strata such as mudstone.

Description

technical field [0001] The invention relates to the technical field of tunnel boring equipment construction, in particular to a data-driven method for calculating the starting torque of a cutterhead of a tunnel boring machine, which is used for calculating the starting torque of a cutterhead of a tunnel boring machine. Background technique [0002] The starting torque of the cutter head of the tunnel boring machine is a key indicator to judge whether the equipment is started with load or whether there is an abnormal start. The publication number is CN111060243A, an automatic detection device and detection method for the torque of a shield hob, which introduces the detection of the starting torque of a single hob on a test bench by using a torque measuring instrument. During the construction process, there is no corresponding method for testing the start-up torque of the entire cutter head. On-site estimates are often based on the start-up torque of a single hob on the test b...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the technical problem that it is difficult to accurately estimate the starting torque of the cutterhead of the existing tunnel boring machine, the present invention proposes a data-driven calculation method for the starting torque of the cutterhead of the tunnel boring machine, and realizes the starting of the cutterhead by relying on the real-time data of the advancing process of the tunnel boring machine Calculation of torque

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