基于角度传感器的机械式盾尾间隙测量装置的研制与应用
王伟1杨光2,3刘家俊2,3王俊杰2,3王利明2,3
Development and Application of Mechanical Shield Tail Clearance Measurement Device Based on Angle Sensor
WANG Wei1YANG Guang2,3LIU Jiajun2,3WANG Junjie2,3WANG Liming2,3
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作者信息:1.国网新源有限公司抽水蓄能技术经济研究院，100032，北京
2.盾构及掘进技术国家重点实验室，450001，郑州
3.中铁隧道局集团有限公司，511458，广州
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Affiliation:1.Pumped-storage Technological & Economic Research Institute, State Grid Xinyuan Group Co., Ltd., 100032, Beijing, China
2.State Key Laboratory of Shield Machine and Boring Technology, 450001, Zhengzhou, China
3.China Railway Tunnel Group Co., Ltd., 511458, Guangzhou, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2024.08.048
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中图分类号/CLCN:U455.43
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栏目/Col:应用技术
摘要:
［目的］针对在盾构或隧道掘进机掘进过程中，盾尾间隙时刻处于变化之中，为保证施工安全，必须对盾尾间隙进行实时测量。针对非接触式盾尾间隙测量装置环境适应性差、精度低、造价高等不足，开展了接触式即机械式盾尾间隙测量装置的研制与开发。［方法］采用磁敏角度传感器进行角度测量，再经数学计算将角度值转换成距离值，得到对应的盾尾间隙值，实现了盾尾间隙实时测量。［结果及结论］该装置在工程现场进行了试验与应用，达到了较好的应用效果：机械式盾尾间隙测量装置可实现对盾尾间隙的连续实时测量，测量数据可以本地存储和远程读取，故测量效率高；机械式测量不需要经过复杂的数据处理，测量精度相对较高，可以控制在1mm以内；机械式盾尾间隙测量装置成本低，约为非接触式测量装置造价的1/5，有利于成本控制。
Abstracts:
［Objective］ In view of the constant changes of shield tail clearance during shield or tunnel boring machine excavation process, to ensure construction safety, it is necessary to measure shield tail clearance in real-time. Addressing the shortcomings of non-contact shield tail clearance measurement devices, such as poor environmental adaptability, low accuracy, and high cost, the development and implementation of a contact-type, as in mechanical shield tail clearance measurement device is carried out. ［Method］ Angle measurement is conducted using a magneto-sensitive angle sensor, and mathematical calculations are then applied to convert the angle values into distance values and obtain corresponding shield tail clearance values, thereby achieving real-time measurement of the shield tail clearance. ［Result & Conclusion］ This device undergoes testing and application in engineering sites, demonstrating satisfactory performance. The mechanical shield tail clearance measurement device enables continuous real-time measurement of the shield tail clearance, with measurement data storable locally and accessible remotely, providing high measurement efficiency. Mechanical measurement does not require complex data processing, resulting in relatively high measurement accuracy, controllable within one millimeter. The cost of this device is low, approximately one-fifth of the non-contact measurement device cost, contributing to cost control efforts.
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