基于能量法的TBM滚刀磨损机理分析研究

doi:10.3901/JME.2018.01.036

机械工程学报 ›› 2018, Vol. 54 ›› Issue (1): 36-43.doi: 10.3901/JME.2018.01.036

• 特邀专栏:硬岩掘进装备(TBM)的关键基础问题 • 上一篇下一篇

基于能量法的TBM滚刀磨损机理分析研究

耿麒, 魏正英, 任军辉

西安交通大学机械制造系统工程国家重点实验室西安 710049

收稿日期:2017-03-02 修回日期:2017-06-19 出版日期:2018-01-05 发布日期:2018-01-05
通讯作者: 耿麒(通信作者),男,1989年出生,博士研究生。主要研究方向为全断面岩石掘进机刀盘结构设计和刀具破岩机理。E-mail:gengqi8902@gmail.com
作者简介:魏正英,女,1967年出生,博士,教授,博士研究生导师。主要研究方向为数字化产品开发与快速制造,快速成形与模具制造,微流体器件设计与制造。E-mail:zywei@mail.xjtu.edu.cn
基金资助:
国家重点基础研究发展计划资助项目（973计划，2013CB035402）。

Analytical Research on the Wear Mechanism of TBM Disc Cutters Based on an Energy Approach

GENG Qi, WEI Zhengying, REN Junhui

State key Laboratory of Manufacturing System Engineering, Xi'an Jiaotong University, Xi'an 710049

Received:2017-03-02 Revised:2017-06-19 Online:2018-01-05 Published:2018-01-05

摘要/Abstract

摘要： 滚刀的磨损消耗是全断面岩石隧道掘进机（Tunnel boring machines，TBM）掘进成本的重要组成部分。针对于此，基于中国秦岭和挪威Røssåga硬岩隧道的实际工程数据，使用能量分析的方法对滚刀磨损进行了分析研究。提出了滚刀刃单位磨损功和等效磨损函数，通过分析刀盘上不同区域滚刀的运动、受力和磨损机制，建立了基于各刀位滚刀破岩载荷、滚刀安装参数和TBM掘进参数的滚刀刃单位磨损功计算公式。通过求解8.8 m和7.23 m直径TBM的等效磨损函数，并计算相应的滚刀刃单位磨损功，对比分析了不同刀盘、不同地质条件和不同刀盘区域的滚刀磨损，发现：等效磨损函数与滚刀寿命系数（CLI）成反比，等效磨损函数的对称轴位置取决于滚刀布局，对称轴位置的滚刀破岩和磨损状态最理想。揭示了刀盘内侧和外侧区域滚刀高磨损率的原因，提出了增大刀盘内侧滚刀间距、增大30°～40°倾角的边滚刀数目的滚刀布局建议。

关键词: 等效磨损函数, 滚刀磨损, 能量分析, 全断面岩石掘进机

Abstract: The consumption of disc cutters on full-face rock tunnel boring machines (TBMs) accounts for a large percentage of the tunnel excavation cost. Based on the engineering data from Qinling rock tunnel in China and Røssåga rock tunnel in Norway, the wear mechanism of disc cutters has been studied with an energy approach. The unit friction work of cutter rings and an equavilent wear function are proposed and analyzed. The calculation formula of the cutter ring unit friction work is established according to the rock breaking loads, cutter position parameters and TBM boring parameters by analyzing the movement, load and wear mechanism of disc cutters on different cutter positions. Based on the solvement of the equivalent wear function and the calculation of the cutter ring unit friction work for the 8.8 m and 7.23 m diameter TBMs respectively, the wear of cutters on different cutterhead zones for TBMs boring through tunnel sections with different geology parameters is analyzed. It is found that the equivalent wear function is inversely proportional to the cutter life index (CLI). The symmetry axis of the equavilent wear function is determined by the disc cutter layout. The rock breaking and cutter wear status of the cutters around the symmetry axis is the best. By revealing the reasons for high wear rate of the cutters on inner and outer cutterhead zones, suggestions for cutter layout design are given, e.g. increasing the spacing of cutters in inner cutterhead zones, add more gage cutters with the tilt angle between 30° to 40°.

Key words: cutter wear, energy analysis, equavilent wear function, tunnel boring machine

中图分类号:

TU94
TP391

耿麒, 魏正英, 任军辉. 基于能量法的TBM滚刀磨损机理分析研究[J]. 机械工程学报, 2018, 54(1): 36-43.

GENG Qi, WEI Zhengying, REN Junhui. Analytical Research on the Wear Mechanism of TBM Disc Cutters Based on an Energy Approach[J]. Journal of Mechanical Engineering, 2018, 54(1): 36-43.

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基于能量法的TBM滚刀磨损机理分析研究

Analytical Research on the Wear Mechanism of TBM Disc Cutters Based on an Energy Approach

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