Home Journals Articles Updates About
CN
image
收藏切换
Influence of Wetting-Drying Cycles on Mechanical Properties and Failure Characteristics of Cemented Tailings Backfill
收藏切换
PDF
Zhiyi LIU1, 2, 3, 4, Zesen LI1, 2, 3, 4, Yidan WANG1, 2, 3, 4, Deqing GAN1, 2, 3, 4
Mining and Metallurgical Engineering | 2025, 45(5) : 20 - 26
Less
收藏切换
Mining and Metallurgical Engineering | 2025, 45(5): 20-26
• MINING •
Influence of Wetting-Drying Cycles on Mechanical Properties and Failure Characteristics of Cemented Tailings Backfill
Full
Zhiyi LIU1, 2, 3, 4, Zesen LI1, 2, 3, 4, Yidan WANG1, 2, 3, 4, Deqing GAN1, 2, 3, 4
Affiliations
  • 1.School of Mining Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
  • 2.Collaborative Innovation Center for Green Development and Ecological Restoration of Mineral Resources, Tangshan 063210, Hebei, China
  • 3.Hebei Technical Innovation Center for Green and Intelligent Mining of Mines, Tangshan 063210, Hebei, China
  • 4.Hebei Mining Development and Safety Technology Laboratory, Tangshan 063210, Hebei, China
Published: 2025-10-01 doi: 10.3969/j.issn.0253-6099.2025.05.004
Outline
收藏切换

Based on the mining environment and stress characteristics of backfill in the upward horizontal slicing and filling method, the influence of wetting-drying (WD) cycles on the mechanical properties of cemented tailings backfill (CTB) was explored. An ultrasonic test and a mechanical property test were conducted for CTB samples with different cement-tailings (c/t) ratios after different WD cycles to investigate variation in the velocity of longitudinal waves, compressive strength, and failure mode. The results show that after WD cycles, the CTB samples with c/t ratios of 1∶4, 1∶6 and 1∶8 all had a decreased ultrasonic wave velocity, and as the number of WD cycle increases, CTB samples with different c/t ratios had enhanced plastic deformation capacity but decreased strength. It is shown that WD cycle has a small impact on backfill with a higher c/t ratio. And the CTB without WD cycle mainly experiences tension-shear failure, while CTB after WD cycles has multiple axially parallel cracks penetrating vertically, which significantly increase after more WD cycles. It is found that the c/t ratio is a key factor for CTB to resist deterioration caused by WD cycles. In mining operation, the c/t ratio for different filling areas can be reasonably optimized to reduce filling costs.

cemented backfill  /  wetting-drying (WD) cycle  /  ultrasonic wave  /  mechanical property  /  wave velocity of backfill  /  deformation characteristics  /  compressive strength  /  failure mode
Zhiyi LIU, Zesen LI, Yidan WANG, Deqing GAN. Influence of Wetting-Drying Cycles on Mechanical Properties and Failure Characteristics of Cemented Tailings Backfill[J]. Mining and Metallurgical Engineering, 2025 , 45 (5) : 20 -26 . DOI: 10.3969/j.issn.0253-6099.2025.05.004
Appendix
Less
Year 2025 volume 45 Issue 5
PDF
48
23
Cite this Article
BibTeX
Article Info
doi: 10.3969/j.issn.0253-6099.2025.05.004
  • Receive Date：2025-03-09
  • Online Date：2026-03-18
  • Published：2025-10-01
Article Data
Affiliations
History
  • Received：2025-03-09
Funding
Affiliations
    1.School of Mining Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
    2.Collaborative Innovation Center for Green Development and Ecological Restoration of Mineral Resources, Tangshan 063210, Hebei, China
    3.Hebei Technical Innovation Center for Green and Intelligent Mining of Mines, Tangshan 063210, Hebei, China
    4.Hebei Mining Development and Safety Technology Laboratory, Tangshan 063210, Hebei, China
References
Share
https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2025.05.004
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