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机械工程学报

机械工程学报 ›› 2016, Vol. 52 ›› Issue (20): 126-136.doi: 10.3901/JME.2016.20.126

• 运载工程 • 上一篇    下一篇

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基于库仑-莫尔准则的盘形滚刀破岩力预测研究*

姜兴宇1, 高超1, 高伟贤2, 苏鹏程2, 赵海峰2   

  1. 1. 沈阳工业大学机械工程学院 沈阳 110870；
    2. 北方重工集团全断面掘进机国家重点实验室 沈阳 110141
  • 出版日期:2016-10-20 发布日期:2016-10-20
  • 作者简介:

    姜兴宇，男，1980年出生，博士，副教授，硕士研究生导师。主要研究方向为盾构机刀盘布局优化、滚刀磨损预测等。发表论文30余篇。

    E-mail：xy_jiang9211@sut.edu.cn

    高超(通信作者)，男，1990年出生，硕士研究生。主要研究方向为盾构机滚刀破岩力预测、磨损预测等。

    E-mail：forward_gao@163.com

  • 基金资助:
    * 高等学校博士学科点新教师类专项科研基金资助项目(20112102120004); 20150623收到初稿，20160121收到修改稿;

Study of the Disc Cutter Performance Forecasting Model Based on Courlomb-Mohr Criterion

JIANG Xingyu1, GAO Chao1, GAO Weixian2, SU Pengcheng2, ZHAO Haifeng2   

  1. 1. School of Mechanical Engineering， Shenyang University of Technology， Shenyang 110870
    , 2. State Key Lab of tunnel Boring Machine， North Heavy Industries Group， Shenyang 110141
  • Online:2016-10-20 Published:2016-10-20

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摘要：

盘形滚刀破岩力是全断面掘进机设计的关键参数，为准确预测盘形滚刀破岩力，以被压岩石为研究对象，以岩石断裂力学为理论基础，综合考虑岩石、滚刀及施工工艺等参数，采用微元积分法，针对圆刃滚刀建立一种综合的滚刀破岩力预测模型。同时根据滚刀实际破岩过程应用库仑-莫尔破坏准则，提出二次派生推力的概念，推导出二次派生推力计算模型，修正滚刀破岩力预测模型使其符合实际情况。在此基础上，应用科罗拉多矿业学院数据对修正后里理论模型进行分析验证，并与线性切割模型和CSM理论模型对比，结果表明本文模型预测精度比已有模型要高。通过模型理论分析和设计三因素三水平正交试验分析得到岩石、滚刀及施工工艺等参数对滚刀破岩力的影响规律，这为全断面掘进机刀盘整体设计和实际施工提供一定的理论参考。

关键词: 库仑-莫尔准则, 破岩力, 圆刃滚刀, 全断面掘进机

Abstract:

The performance of disc cutter is a crucial parameter in TBM design. For an accurate prediction of disk cutter performance, a comprehensive forecasting model for the circular blade cutter is established. Considering parameters of rock, cutter, and construction technology, and applying differential calculus, the compressed rock is taken as the research object to establish the model based on rock fracture mechanics. Meanwhile, the concept of secondary derived thrust is proposed and the secondary derived thrust calculation model is deduced to fix the prediction model to meet the actual condition according to the Coulomb-Mohr failure criterion. Then, data from Colorado School of Mines is applied to verify the prediction model. Comparing with linear cutting model and CSM model, the precision of the prediction model is higher than the existing models. The influence law of disc cutter performance by the parameters of rock, cutter and construction technology is obtained by theoretical analysis and designing the orthogonal experiment with three factors three levels, which can be a reference for designing the cutter head in TBM and actual construction.

Key words: courlomb-mohr criterion, disc cutter, performance, total boring machine(TBM)

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