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TBM cutterhead torque determination method and system

A technology of cutter head torque and determination method, which is applied in special data processing applications, instruments, electrical digital data processing, etc., and can solve problems such as unfavorable hard rock tunnel engineering requirements and complex models

Active Publication Date: 2019-05-17
TIANJIN UNIV
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  • Description
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  • Application Information

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Problems solved by technology

However, for the prediction of the cutter head torque of the roadheader in hard rock, the existing research based on dimensional analysis has not eliminated irrelevant influencing factors, resulting in a complex model, which is not conducive to the needs of hard rock tunnel engineering

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  • TBM cutterhead torque determination method and system
  • TBM cutterhead torque determination method and system
  • TBM cutterhead torque determination method and system

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specific Embodiment 1

[0078] The calculation method of the cutter head torque of the present invention will be described in detail below in conjunction with the embodiments. Specific steps are as follows:

[0079] 1. List the parameters affecting the torque T of the cutter head: η is the rock firmness coefficient; σ t is the tensile strength of rock, unit: kpa; σ c is the saturated compressive strength of the rock, unit: kpa; f is the friction coefficient of the rock; c is the cohesion of the rock, unit: kpa; V p is rock longitudinal wave velocity, unit: m / s; v is tunneling speed, unit: m / s; ω is cutter head rotation speed, unit: r / min.

[0080] 2. According to the following formulas (1)-(6), calculate the dimensionless quantity and dimensionless cutter head torque respectively. Among them, π 1 , π 2 , π 3 , π 4 , π 5 are five dimensionless quantities; η is the rock firmness coefficient; σ t is the tensile strength of rock, unit: kpa; σ c is the saturated compressive strength of the rock,...

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Abstract

The invention discloses a TBM cutter head torque determination method and system. The method comprises the following steps of determining the parameters influencing the cutterhead torque; determiningthe dimensionless quantity and the dimensionless cutterhead torque in the TBM tunneling process according to the parameters; obtaining a coefficient identification result of the dimensionless quantityby adopting an elastic network algorithm according to the dimensionless quantity; multiplying each dimensionless quantity coefficient identification result by the corresponding dimensionless quantityto obtain a cutterhead torque calculation model; and determining the TBM cutterhead torque according to the cutterhead torque calculation model. By means of the method or the system, the cutter headtorque in the TBM equipment tunneling process can be rapidly and accurately calculated.

Description

technical field [0001] The invention relates to the calculation field of TBM cutterhead torque, in particular to a method and system for determining TBM cutterhead torque. Background technique [0002] Full-face tunnel boring machine (TBM) is a factory-like assembly line tunnel construction equipment integrated with mechanical, electrical, hydraulic, optical, and gas systems. It is mainly used for tunnel excavation in rock formations. Its cutter head torque is an important performance parameter, used to keep the cutter head constantly rotating to break the rock ahead. At present, the research on prediction of TBM cutter head torque based on engineering data is mainly divided into mechanical model based on force analysis and prediction based on engineering data analysis. Among them, in this type of research based on engineering data analysis, there is a calculation method based on dimensional analysis, which has high universality. However, for the prediction of the cutterhe...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 张茜周思阳亢一澜侯振德蔡宗熙
Owner TIANJIN UNIV
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