摘要
刀盘是全断面岩石掘进机(TBM)的核心部件,其变形量是否满足要求、应力分布是否合理决定了掘进机能否安全可靠地工作。为对比分析不同几何结构TBM刀盘的静力学性能,基于应用在秦岭隧道的TB880E型平面刀盘,设计了具有相同开挖直径和滚刀数目的锥面刀盘和球面刀盘;通过建立3种刀盘的有限元计算模型,分析了相同工况下3种刀盘的变形和应力分布。分析结果表明:相同工况和掘进参数条件下,平面刀盘的应力最小,而锥面和球面刀盘的盘面变形较小。这说明平面刀盘结构平滑,不易产生应力集中,刀盘强度较高;球面和锥面刀盘的刀盘面呈拱形结构外凸,可以有效提高刀盘结构的整体刚度。
Cutterhead is the key component of tunnel boring machine（ TBM） and the deformation and stress distributions of cutterhead are the keys to the safe operation of TBM. In this paper,the static mechanical performances of TBM cuttterhead with different geometries are analyzed,and the domed cutterhead and cone cutterhead with the same diameter and the same cutters number are designed based on flat-face cutterhead of TB880 E TBM used in Qinling tunnel.The deformation and stress distribution of three types of cutterheads under the same construction conditions and boring parameters are analyzed by means of finite element models. The analysis results show that the stress of flat-face cutterhead is smaller than that of domed cutterhead and that of cone cutterhead,and the deformation of domed cutterhead and that of cone cutterhead are smaller than that of flat-face cutterhead. It is illustrated that the strength of flat-face cutterhead is much higher than that of domed cutterhead and that of cone cutterhead,and the cutterhead rigidity can be effectively improved by using domed / cone cuttehead.
出处
《隧道建设》
北大核心
2016年第1期102-107,共6页
Tunnel Construction
基金
国家高技术研究发展计划(863计划)
科技专项课题资助项目(2012AA041801)
关键词
全断面岩石掘进机(TBM)
平面刀盘
球面刀盘
锥面刀盘
静力学性能
full-face rock tunnel boring machine（TBM）
flat-face cutterhead
domed cutterhead
cone cutterhead
static mechanical performance
作者简介
赵振威（1984-），男，河南林州人，2005年毕业于河南科技大学，机械设计制造及其自动化专业，本科，工程师，从事全断面岩石掘进机结构设计工作。E—mail：tbm9426@126．com。
