磨料浆体射流辅助TBM刀盘截割性能分析

doi:10.3901/JME.2024.15.379

机械工程学报 ›› 2024, Vol. 60 ›› Issue (15): 379-392.doi: 10.3901/JME.2024.15.379

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磨料浆体射流辅助TBM刀盘截割性能分析

刘送永^1,2, 周方跃^1,2, 割泽伸一³, 郭楚文⁴, 李洪盛^1,2

1. 中国矿业大学机电工程学院徐州 221116;
2. 中国矿业大学江苏省矿山智能采掘装备协同创新中心徐州 221008;
3. 东京大学新领域创成科学研究科千叶 277-8589 日本;
4. 中国矿业大学低碳能源与动力工程学院徐州 221116

收稿日期:2023-08-17 修回日期:2024-01-15 出版日期:2024-08-05 发布日期:2024-09-24
作者简介:刘送永，男，1981年出生，博士，教授，博士研究生导师。主要研究方向为矿体高效破碎机理与技术、地下空间快速掘进技术及装备。E-mail：lsycumt@163.com
周方跃(通信作者)，男，1993年出生，博士，讲师。主要研究方向为机械/水射流高效破岩理论与技术、隧道掘进装备结构设计与研发。E-mail：fangyuezhou@outlook.com
基金资助:
江苏省杰出青年基金(BK20211531)、安徽理工大学高层次引进人才科研启动基金(2023yjrc34)和江苏省基础研究计划(自然科学基金)青年基金(BK20210516)资助项目。

Analysis of Cutting Performance of TBM Cutter Head Assisted by Abrasive Slurry Jet

LIU Songyong^1,2, ZHOU Fangyue^1,2, SHINICHI W³, GUO Chuwen⁴, LI Hongsheng^1,2

1. School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116;
2. Jiangsu Province and Education Ministry Co-sponsored Collaborative Innovation Center of Intelligent Mining Equipment, China University of Mining and Technology, Xuzhou 221008;
3. Graduate School of Frontier Sciences, University of Tokyo, Chiba, 277-8589 Japan;
4. School of Low-Carbon Energy and Power Engineering, China University of Mining and Technology, Xuzhou 221116

Received:2023-08-17 Revised:2024-01-15 Online:2024-08-05 Published:2024-09-24

摘要/Abstract

摘要： 针对高地应力环境以及高硬度、强磨蚀性等复杂岩层条件下隧道施工所面临的滚刀频繁失效问题，利用高压水射流辅助机械刀具破岩技术的降载减磨特性将切割能力相比纯水射流更强的磨料浆体射流引入TBM刀盘，并基于预切缝联合滚刀破岩载荷特性对射流喷嘴于刀盘上的布置方案进行合理设计，在此基础上结合已有试验条件开展水射流-刀盘对混凝土岩样的室内截割试验，探究岩样抗压强度、射流压力、刀盘转速与推进速度对刀盘截割性能的影响规律以及各因素间的相关关系。研究结果表明：岩样抗压强度、刀盘转速与推进速度的增加均会推升刀盘扭矩与推进阻力水平，磨料浆体射流的存在有助于改善刀盘的载荷状态并削弱相关因素的影响水平，且射流压力愈高效果愈显著，但由于高压水射流切割破碎岩石比能相对于机械刀具更高，磨料浆体射流的引入在提升刀盘掘进速度的同时亦拖累了施工的经济性。各因素对刀盘扭矩的影响主次顺序依次为岩样抗压强度、刀盘转速、推进速度、射流压力，而对刀盘推进阻力的影响主次顺序则依次为岩样抗压强度、推进速度、射流压力、刀盘转速。

关键词: 磨料浆体射流, TBM刀盘, 扭矩, 推进阻力, 比能

Abstract: In response to the frequent failure of disc cutters in tunnel construction under high ground stress and complex rock formations such as high hardness and strong abrasion, the abrasive slurry jet with stronger cutting ability than pure water jet was introduced into the TBM cutter head based on the load and wear reduction characteristics of rock breaking technology with mechanical cutter assisted by high-pressure water jet. The layout scheme of jet nozzles on the cutter head was reasonably designed based on the rock breaking load characteristics of pre-slit combined disc cutter, and the indoor cutting tests of water jet-cutter head on concrete rock specimen were conducted in combination with existing experimental conditions to explore the influence of rock specimen compressive strength, jet pressure, cutter head rotation and advancing speed on the cutting performance of the cutter head, as well as the correlation between various factors. The results indicate that the increase in rock specimen compressive strength, cutter head rotation and advancing speed will push up the torque and propulsion resistance levels of the cutter head. The presence of abrasive slurry jet helps to improve the load state of the cutter head and weaken the influence level of related factors, and the higher the jet pressure, the more significant the effect. However, the introduction of abrasive slurry jet not only increases the tunnelling speed of the cutter head, but also drags down the economy of construction due to the higher rock breaking specific energy of high-pressure water jet compared to mechanical tools. The primary and secondary order of the influence of various factors on the torque of the cutterhead is rock specimen compressive strength, cutter head rotation speed, cutter head advancing speed, and jet pressure, while what on the propulsion resistance of the cutter head is rock specimen compressive strength, cutter head advancing speed, jet pressure, and cutter head rotation speed.

Key words: abrasive slurry jet, TBM cutter head, torque, propulsion resistance, specific energy

中图分类号:

U455

刘送永, 周方跃, 割泽伸一, 郭楚文, 李洪盛. 磨料浆体射流辅助TBM刀盘截割性能分析[J]. 机械工程学报, 2024, 60(15): 379-392.

LIU Songyong, ZHOU Fangyue, SHINICHI W, GUO Chuwen, LI Hongsheng. Analysis of Cutting Performance of TBM Cutter Head Assisted by Abrasive Slurry Jet[J]. Journal of Mechanical Engineering, 2024, 60(15): 379-392.

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磨料浆体射流辅助TBM刀盘截割性能分析

Analysis of Cutting Performance of TBM Cutter Head Assisted by Abrasive Slurry Jet

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