Home Journals Articles Updates About
CN
image
收藏切换
Experimental Study on the Evolution of Loess Strength under Salt Pollution-Dry and Wet Coupling
收藏切换
PDF
Shixiong Ma1, 2, Shuhong Wang2, Chunyao Zhao3, Zhi Liu1, Yu Wang1
Chinese Journal of Underground Space and Engineering | 2026, 22(2) : 556 - 564
Less
收藏切换
Chinese Journal of Underground Space and Engineering | 2026, 22(2): 556-564
Experimental Study on the Evolution of Loess Strength under Salt Pollution-Dry and Wet Coupling
Full
Shixiong Ma1, 2, Shuhong Wang2, Chunyao Zhao3, Zhi Liu1, Yu Wang1
Affiliations
  • 1.School of Architecture and Environment, Ningxia Institute of Science and Technology, Shizuishan, Ningxia 753000, P. R. China
  • 2.College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, P. R. China
  • 3.Ningxia Highway Survey and Design Institute Limited Liability Company, Yinchuan, Ningxia 750000, P. R. China
Published: 2026-04-20 doi: 10.20174/j.JUSE.2026.02.17
Outline
收藏切换

The soil in the northwest loess irrigation area has been affected by the dual effects of dry-wet cycling and salt pollution, leading to significant deterioration of the loess properties in this region. Taking Q3 loess contaminated by Na2SO4 as the research object, direct shear tests and scanning electron microscopy (SEM) are used to analyse the changes in mechanical properties and microstructure characteristics after different numbers of dry-wet cycles. The results show that: Under the dual effects of dry-wet cycling and salt pollution, the strength of the loess deteriorates significantly, and the microstructure changes significantly. Among them, the cohesion shows obvious deterioration, with a decline rate of up to 38.24% to 51.4%. With the increase of salt pollution and dry-wet cycling times, the proportion of individual particles in the loess body increases significantly, and the aggregates begin to disintegrate; Na2SO4 repeatedly crystallizes and dissolves during dry-wet cycling, thereby exerting a combined effect of salt swelling and salt erosion on the soil; among the two effects, the destructive effect of dry-wet cycling on the soil structure is greater than that of salt pollution. The research results provide an effective reference for engineering activities and pollution control in loess areas.

polluted loess  /  dry and wet cycle  /  fractal dimension  /  probabilistic entropy
Shixiong Ma, Shuhong Wang, Chunyao Zhao, Zhi Liu, Yu Wang. Experimental Study on the Evolution of Loess Strength under Salt Pollution-Dry and Wet Coupling[J]. Chinese Journal of Underground Space and Engineering, 2026 , 22 (2) : 556 -564 . DOI: 10.20174/j.JUSE.2026.02.17
Appendix
Less
Year 2026 volume 22 Issue 2
PDF
0
0
Cite this Article
BibTeX
Article Info
doi: 10.20174/j.JUSE.2026.02.17
  • Receive Date：2025-06-10
  • Online Date：2026-06-17
  • Published：2026-04-20
Article Data
Affiliations
History
  • Received：2025-06-10
Funding
Affiliations
    1.School of Architecture and Environment, Ningxia Institute of Science and Technology, Shizuishan, Ningxia 753000, P. R. China
    2.College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, P. R. China
    3.Ningxia Highway Survey and Design Institute Limited Liability Company, Yinchuan, Ningxia 750000, P. R. China
References
Share
https://castjournals.cast.org.cn/joweb/dxkjygcxb/EN/10.20174/j.JUSE.2026.02.17
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