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All-section rock tunneling machine cutter layout design optimization method

A design method and optimized design technology, applied to mining equipment, earthwork drilling, tunnels, etc.

Inactive Publication Date: 2007-12-12
XCMG KAIGONG HEAVY IND NANJING
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] To sum up, scholars at home and abroad have made some preliminary research results in the research on the mechanism of rock breaking, the calculation of the force on the cutterhead of the roadheader, and the selection of the cutter on the cutterhead of the roadheader, but there is no optimization of the cutter from the perspective of layout optimization. Research on Layout Design Method

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  • All-section rock tunneling machine cutter layout design optimization method
  • All-section rock tunneling machine cutter layout design optimization method
  • All-section rock tunneling machine cutter layout design optimization method

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Embodiment Construction

[0066] In conjunction with the accompanying drawings, the implementation of the present invention is described in detail. The present invention takes the geological conditions of a water diversion tunnel project as an example. 51 disc cutters are arranged on the panel cutter head, 8 center cutters, 11 side cutters, and 32 front cutters. The known conditions are as follows: ① Geological parameters: rock unconfined shear strength τ = 8 (MPa), rock uniaxial compressive strength σ = 80 (MPa), ② basic parameters of the cutterhead of the roadheader: the radius of the cutterhead R = 4.015m, the rotating speed ω=6(r / min)=0.6283rad / s of the cutterhead, the mass M of the disk cutter=200kg, the diameter collection D=19 inches of the disk cutter=483mm, the depth of cut of the disk cutter h=10mm, The rock breaking angle of the disk cutter β=1.3734rad, the indentation angle between the disk cutter and the rock surface =0.28878 rad, the cutter edge angle α=2.09434 rad, the radius of the manh...

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Abstract

The invention relates to a disk cutter layout design optimization method of development machine, concerning not micro and multi-modal disk cutter layout design optimization problems, especially applicable to full-face rock tunnel boring machine tool optimized layout design. A full-face rock tunnel boring machine knife tool layout design method, first determine disc hob position on the knife set and knife set overall technical performance parameters, in accordance with the actual knife tool layout technical requirements of the full-face rock tunnel boring machine, establishment of the binding properties of complex nonlinear multi-objective optimization model for knife tool layout; layout tool to establish grading optimization design model of knife tool layout polar pathway and angle calculation; putting the knife tool polar pathway and disc cutter knife polar angle as a design variable, adoption the genetic algorithm. The invention fast and effective in the determination of the knife tool optimized layout on the knife disc, made the knife disc having a small outside force and outside torque, thereby prolonging knife disc, knife tool and knife disc axletree life of the development machine, shorten the design cycle and improve design efficiency .

Description

technical field [0001] The invention relates to an optimal design method for disc cutter arrangement of a roadheader, which relates to an optimal design method for non-differentiable and multimodal disc cutter arrangement problems, and is especially suitable for the optimal design of cutter arrangement for a full-section rock roadheader. Background technique [0002] Full-face rock boring machine (TBM) is a large-scale special-purpose construction machine for tunnel boring, which is widely used in subway, railway, highway, municipal, hydropower tunnel projects. TBMs are expensive, generally hundreds of millions of RMB per unit. In recent years, with more and more tunnel engineering projects in my country, the demand for TBMs is also increasing. However, my country's TBM is still in the stage of introduction and digestion, and it is imperative to increase the theoretical research and development of TBM. Among them, the arrangement of cutters on the cutter head is the core te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08
Inventor 霍军周滕弘飞
Owner XCMG KAIGONG HEAVY IND NANJING
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