Home Journals Articles Updates About
CN
image
收藏切换
Optimization of Blasthole Layout in Upward Cutting Blasting with Medium Hole Length
收藏切换
PDF
Yazhou GU1, 2, Xiuzhi SHI2, Wenhua LIU3, Shengjun WANG3, Shaofei SHI3, Xianyang QIU2, Yanhai WANG2
Mining and Metallurgical Engineering | 2023, 43(6) : 24 - 28
Less
收藏切换
Mining and Metallurgical Engineering | 2023, 43(6): 24-28
• MINING •
Optimization of Blasthole Layout in Upward Cutting Blasting with Medium Hole Length
Full
Yazhou GU1, 2, Xiuzhi SHI2, Wenhua LIU3, Shengjun WANG3, Shaofei SHI3, Xianyang QIU2, Yanhai WANG2
Affiliations
  • 1.Zijin (Changsha) Engineering Technology Co Ltd, Changsha 410000, Hunan, China
  • 2.School of Resources and Safety Engineering, Central South University, Changsha 410083, Hunan, China
  • 3.Linyi Huibaoling Iron Mine Co Ltd, Linyi 277718, Shandong, China
Published: 2023-12-01 doi: 10.3969/j.issn.0253-6099.2023.06.006
Outline
收藏切换

A nine-hole cut blasting method was adopted in a test of Tonglushan stope. In combination with on-site actual situation, cutting blasting with medium hole length was studied by using theories of compensated space and fissure zone. The first circle of blasthole layout for cutting blasting was optimized, and four types of models for first circle of blasthole layout were then established by LS-DYNA software. After simulation calculation, the rock blasting effect was simulated by using RHT constitutive model. The results show that the more number of empty blastholes (that is, the larger the compensation space), the better the blasting effect in cutting area. The uniformity of empty blasthole position (that is the uniformity of compensative space) will also influence blasting effect. It is shown that both the section and height of the trench after blasting in the field test meet the design requirement, which proves that the first circle blasthole layout for cutting blasting is reasonable.

cutting blasting  /  cutting mode  /  blasthole layout  /  blasting parameters  /  numerical simulation
Yazhou GU, Xiuzhi SHI, Wenhua LIU, Shengjun WANG, Shaofei SHI, Xianyang QIU, Yanhai WANG. Optimization of Blasthole Layout in Upward Cutting Blasting with Medium Hole Length[J]. Mining and Metallurgical Engineering, 2023 , 43 (6) : 24 -28 . DOI: 10.3969/j.issn.0253-6099.2023.06.006
Appendix
Less
Year 2023 volume 43 Issue 6
PDF
23
4
Cite this Article
BibTeX
Article Info
doi: 10.3969/j.issn.0253-6099.2023.06.006
  • Receive Date：2023-06-26
  • Online Date：2026-03-05
  • Published：2023-12-01
Article Data
Affiliations
History
  • Received：2023-06-26
Funding
Affiliations
    1.Zijin (Changsha) Engineering Technology Co Ltd, Changsha 410000, Hunan, China
    2.School of Resources and Safety Engineering, Central South University, Changsha 410083, Hunan, China
    3.Linyi Huibaoling Iron Mine Co Ltd, Linyi 277718, Shandong, China
References
Share
https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2023.06.006
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
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
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House