Home Journals Articles Updates About
CN
image
收藏切换
Analysis of Blasting Test Effect of Mixed Explosives in Plateau Tunnel
收藏切换
PDF
Jin-jun CAO1, Gui-song ZHOU1, 2, Zhen-dong LENG1, You XU3, Guo-rong HOU3, Shui-long TIAN1, Jun LU3
Blasting | 2024, 41(3) : 156 - 161
Less
收藏切换
Blasting | 2024, 41(3): 156-161
• BLASTING MATERIALS •
Analysis of Blasting Test Effect of Mixed Explosives in Plateau Tunnel
Full
Jin-jun CAO1, Gui-song ZHOU1, 2, Zhen-dong LENG1, You XU3, Guo-rong HOU3, Shui-long TIAN1, Jun LU3
Affiliations
  • 1.China Gezhouba Explosive Co., Ltd., Chongqing 401121, China
  • 2.Wuhan University of Science and Technology, Wuhan 430000, China
  • 3.Gezhouba Explosive Sichuan Blasting Engineering Co., Ltd., Chengdu 610000, China
Published: 2024-09-01 doi: 10.3963/j.issn.1001-487X.2024.03.019
Outline
收藏切换

In view of larger holes and higher density operators with the traditional blasting of packed explosives, this paper launched 60 on-site blasting experiments in a plateau tunnel. The charging efficiency of different numbers of exploders was summarized, the hole network parameters were optimized and smooth blasting effect of peripheral holes were improved. Compared with the smooth blasting effect, the number of holes dropped from 151 to 124. The spacing of peripheral holes was gradually optimized from 45 cm to 60 cm based on the advantages of good mechanical and coupling charging on-site mixed explosives. The result shows that the on-site mixed loading blasting in plateau tunnel can improve more than 40% efficiency per operator and reduce 90% of labor intensity compared with the traditional blasting of packed explosives. It can significantly reduce the number of operators and improve the efficiency of drilling and loading, saving more than 15% of drilling quantity and explosive equipment. Lastly, more than 3% of the utilization of circular footage has been improved, which shows that on-site mixed-loading blasting can accelerate construction progress.

mixing explosives on site  /  low density  /  coupling charging  /  smooth blasting  /  ergonomic analysis  /  circular footage
Jin-jun CAO, Gui-song ZHOU, Zhen-dong LENG, You XU, Guo-rong HOU, Shui-long TIAN, Jun LU. Analysis of Blasting Test Effect of Mixed Explosives in Plateau Tunnel[J]. Blasting, 2024 , 41 (3) : 156 -161 . DOI: 10.3963/j.issn.1001-487X.2024.03.019
Funding
Less
  • National Natural Science Foundation of China(51809016)
  • Chongqing Natural Science Foundation General Project(cstc2019jcyj-msxmX0645)
Appendix
Less
Year 2024 volume 41 Issue 3
PDF
106
49
Cite this Article
BibTeX
Article Info
doi: 10.3963/j.issn.1001-487X.2024.03.019
  • Receive Date：2024-04-26
  • Online Date：2026-03-20
  • Published：2024-09-01
Article Data
Affiliations
History
  • Received：2024-04-26
Funding
National Natural Science Foundation of China(51809016)
Chongqing Natural Science Foundation General Project(cstc2019jcyj-msxmX0645)
Affiliations
    1.China Gezhouba Explosive Co., Ltd., Chongqing 401121, China
    2.Wuhan University of Science and Technology, Wuhan 430000, China
    3.Gezhouba Explosive Sichuan Blasting Engineering Co., Ltd., Chengdu 610000, China
References
Share
https://castjournals.cast.org.cn/joweb/bp/EN/10.3963/j.issn.1001-487X.2024.03.019
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