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Experimental study on granite cutting based on post mixed abrasive jet
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Jixin SU1, Zhichao WEI1, Di ZHANG1, Shengfu BA1, Lei PANG2, Zhengwen CHEN2, Qile REN2
Fluid Machinery | 2025, 53(9) : 8 - 13
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Fluid Machinery | 2025, 53(9): 8-13
Experimental study on granite cutting based on post mixed abrasive jet
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Jixin SU1, Zhichao WEI1, Di ZHANG1, Shengfu BA1, Lei PANG2, Zhengwen CHEN2, Qile REN2
Affiliations
  • 1Anhui Key Laboratory of General Mechanical Composite Technology，Hefei General Machinery Research Institute Co.，Ltd.，Hefei 230031，China
  • 2General Machinery Key and Core Basic Components Innovation Center（Anhui） Co.，Ltd.，Hefei 230031，China
Published: 2025-09-30 doi: 10.3969/j.issn.1005-0329.2025.09.002
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In response to the problems of severe wear on the rolling cutter ring，difficult penetration，and reduced efficiency during the rock‑breaking process of the vertical shaft tunneling machine，this study conducts experimental research on abrasive water jet cutting of granite under submerged conditions，based on the rock‑breaking mechanism of ultra‑high pressure post‑mixed abrasive jet cutting.Focusing on the working condition of a 150 mm submerged depth for vertical shaft excavation，the influence laws of nozzle movement speed，jet pressure，and jet standoff distance on the rock‑breaking cutting effect were explored.The results show that the optimal matching parameters are a jet pressure of 380 MPa，a nozzle movement speed of 18 m/min，and a jet standoff distance of 20~40 mm；with these parameters，a maximum single‑cutting depth of 4.4 mm and a maximum cutting width of 2.3 mm can be achieved.Furthermore，a jet nozzle layout scheme for the full‑face vertical shaft tunneling machine cutterhead （with an excavation diameter of 8.1 m） is proposed.Through the collaborative layout of 26 jet nozzles，the rock‑breaking and tunneling efficiency of the full‑face vertical shaft tunneling machine can be effectively improved.The research results can provide certain references for the application of abrasive jet‑assisted rock breaking in vertical shaft excavation operations.

post mixed abrasive jet  /  rock‑cutting and breaking  /  movement speed  /  jet pressure  /  target distance
苏吉鑫, 韦志超, 张的, 巴胜富, 庞雷, 陈正文, 任启乐. 基于后混式磨料射流切割花岗岩的试验研究. 流体机械, 2025 , 53 (9) : 8 -13 . DOI: 10.3969/j.issn.1005-0329.2025.09.002
Jixin SU, Zhichao WEI, Di ZHANG, Shengfu BA, Lei PANG, Zhengwen CHEN, Qile REN. Experimental study on granite cutting based on post mixed abrasive jet[J]. Fluid Machinery, 2025 , 53 (9) : 8 -13 . DOI: 10.3969/j.issn.1005-0329.2025.09.002
Appendix
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Year 2025 volume 53 Issue 9
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Article Info
doi: 10.3969/j.issn.1005-0329.2025.09.002
  • Receive Date：2024-11-23
  • Online Date：2026-10-20
  • Published：2025-09-30
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History
  • Received：2024-11-23
  • Revised：2025-08-19
Affiliations
    1Anhui Key Laboratory of General Mechanical Composite Technology，Hefei General Machinery Research Institute Co.，Ltd.，Hefei 230031，China
    2General Machinery Key and Core Basic Components Innovation Center（Anhui） Co.，Ltd.，Hefei 230031，China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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