A Prediction Model of Effective High-Pressure Water Jet Auxiliary Groove Spacing for Hard-Rock Pick Cutting
文献类型：期刊论文
| 作者 | Lu, Jingjing2,3; Xiao, Jiancheng2,3; Zhou, Hui2,3; Zhang, Chuanqing2,3; Ma, Xiao1; Hou, Congcong2,3; Cui, Jian2,3 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2025-04-08 |
| 页码 | 22 |
| 关键词 | Effective water jet distance Combined rock-breaking mode High pressure water jet auxiliary rock-breaking Underground engineering construction |
| ISSN号 | 0723-2632 |
| DOI | 10.1007/s00603-025-04547-z |
| 英文摘要 | A High-pressure water jet and Pick Combined (HPC) rock-breaking technology is one of the effective ways to solve the rock-breaking efficiency of double-wheel trench cutters in hard rock strata. This paper proposed a prediction model of effective high-pressure water jet auxiliary groove spacing for hard-rock pick cutting. Laboratory tests and continuum-discontinuum element method (CDEM) numerical simulations were carried out to verify the effective auxiliary groove spacing of water jet predicted by the theoretical model. At the same time, the influence of water jet cutting spacing on the mechanical characteristics of pick rock-breaking and rock mass breaking characteristics was studied. The results show that by predicting the disturbance range of stress caused by pick cutting rock mass, the maximum spacing of free surface auxiliary pick cutting in rock mass can be obtained. The prediction model reveals the correlation between the pick-relieved cutting spacing of rock mass and the effective auxiliary cutting spacing of water jets. From the simulation and test results, it can be concluded that with the increase of water jet cutting spacing, the average rock-breaking load and energy consumption of picks continue to increase until they reach the level of the control group without water jet cutting. For granite, 25 mm is the maximum effective auxiliary groove spacing of the water jet. Within the 10-14 mm PRC range, the average load and energy consumption are significantly reduced. Within the maximum effective auxiliary groove spacing, the average load and energy consumption of the pick are significantly lower than those of the control group, which can reduce the difficulty of hard rock breaking and assist the pick to break hard rock mass. At the same time, the effective auxiliary groove spacing predicted by the model is consistent with the numerical simulation and laboratory test verification results, which shows the correctness of the predicted results of this model. |
| 资助项目 | Chinese Academy of Sciences[ZDBS-LY-DQC022] ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences[U2468215] ; Key Projects of the Railway Fundamental Research Joint Fund of the National Natural Science Foundation of China[SKLGME-JBGS2401] ; Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001461702400001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36227]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Xiao, Jiancheng |
| 作者单位 | 1.State Key Lab Bridge Intelligent & Green Construct, Wuhan 430034, Hubei, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn Safety, Wuhan 430071, Hubei, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Jingjing,Xiao, Jiancheng,Zhou, Hui,et al. A Prediction Model of Effective High-Pressure Water Jet Auxiliary Groove Spacing for Hard-Rock Pick Cutting[J]. ROCK MECHANICS AND ROCK ENGINEERING,2025:22. |
| APA | Lu, Jingjing.,Xiao, Jiancheng.,Zhou, Hui.,Zhang, Chuanqing.,Ma, Xiao.,...&Cui, Jian.(2025).A Prediction Model of Effective High-Pressure Water Jet Auxiliary Groove Spacing for Hard-Rock Pick Cutting.ROCK MECHANICS AND ROCK ENGINEERING,22. |
| MLA | Lu, Jingjing,et al."A Prediction Model of Effective High-Pressure Water Jet Auxiliary Groove Spacing for Hard-Rock Pick Cutting".ROCK MECHANICS AND ROCK ENGINEERING (2025):22. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。