- CSCD核心中文核心科技核心
- RCCSE(A+)公路运输高质量期刊T1
- Ei CompendexScopusWJCI
- EBSCOPж(AJ)JST
TBM掘进刀具磨损实时监测技术及刀盘振动监测分析
收稿日期: 2016-08-26
修回日期: 2017-01-04
网络出版日期: 2017-03-30
基金资助
国家重点基础研究发展计划“973”项目(2015CB058102, 2014CB046904)
Realtime Monitoring Technology for Wear of Cutters and Monitoring and Analysis of Cutterhead Vibration of TBM
Received date: 2016-08-26
Revised date: 2017-01-04
Online published: 2017-03-30
受制于施工环境,TBM(tunnel boring machine)刀具磨损及刀盘振动实时监测问题一直难以解决。基于此,对滚刀和刮刀分别提出了基于电涡流传感器及电阻格栅的磨损实时监测系统,并通过试验建立了输出电压信号与磨损量之间的关系; 同时,对吉林引松工程直径为8.03 m的隧道掘进机进行刀盘振动现场监测,并对振动响应进行时域及频域分析。结果表明: 在一定地质条件下,随着贯入度的增大,刀盘振动值逐渐变大; 刀盘空转频域曲线表现为局部峰值、整体幅值较小的特点,正常掘进时振动幅值明显较大的几个频率范围与刀盘空转时几个波峰对应的频率范围相同,在制作刀盘时其固有频率要尽量避开这几个频率范围,防止产生共振。
张晓波 , 刘泉声 , 张建明 . TBM掘进刀具磨损实时监测技术及刀盘振动监测分析[J]. 隧道建设, 2017 , 37(3) : 380 -385 . DOI: 10.3973/j.issn.1672-741X.2017.03.019
The realtime monitoring of cutter wear and cutterhead vibration of TBM (tunnel boring machine) are difficult due to the limit of construction environment. As a result, the realtime monitoring systems for wear of hob cutter and scrape cutter of TBM based on eddycurrent sensor and resistance grid are proposed; and then the relationship between the output voltage signals and the wear amount is established by test. Meanwhile, the field monitoring of cutterhead vibration of a TBM with diameter of 8.03 m used in Songhua River Water Diversion Project in Jilin province is carried out; and the vibration response is analyzed. The results show that: 1) The vibration value increases with the penetration increases under certain geological conditions. 2) The frequencydomain curve shows the characteristics of local peaks and small overall amplitudes when the cutterhead is idling. Several frequency ranges with larger amplitudes when TBM normally boring are equal to peaks when TBM idling. As a result, the abovementioned ranges should be avoided when manufacturing.
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