Test Study on Salt-Freeze-Thaw Cycles of Subgrade in Water-Salt-Temperature Coupling Environment

  • Zhou Ziyi ,
  • Yang Baocun ,
  • Zhang Qinling ,
  • Yang Xiaosong
Expand
  • 1. College of Water Resources and Architecture Engineering, Tarim University, Aral, Xinjiang, 843300, P. R. China;    
    2. Research center of Southern Xinjiang Geotechnical Engineering, Aral, Xinjiang 843300, P. R. China

Received date: 2024-04-15

  Online published: 2025-01-03

Abstract

The subgrade structure of asphalt concrete roads in southern Xinjiang is affected by the coupling environment of water, salt, and temperature in the special saline soil environment in southern Xinjiang, the subgrade structure is damaged under the action of dry-wet cycles and salt-freeze-thaw cycles. The developed water-salt-temperature multi-field coupling test system is used to simulate the unique coupling environmental effects of dry-wet cycles and salt-freeze-thaw cycles in saline soil environment in southern Xinjiang, the damage and failure test of asphalt concrete road subgrade structure samples under the action of salt-freeze-thaw cycles environment is carried out. The results show that the distribution of water and salt in a salt-freeze-thaw cycle has obvious variation characteristics along the height of the subgrade structure, the water and salt in subgrade soil migrate and accumulate from bottom to top under the action of temperature gradient, the stress and strain caused by the change of water and salt phase in subgrade structure under the action of salt-freeze-thaw cycles are the main reasons for the damage and deformation of subgrade structure. By controlling and optimizing the water-salt-temperature environmental factors of road subgrade structure, the migration of water and salt in subgrade structure can be blocked, and the influence of salt-freeze-thaw cycles on subgrade structure can be effectively controlled.

Cite this article

Zhou Ziyi , Yang Baocun , Zhang Qinling , Yang Xiaosong . Test Study on Salt-Freeze-Thaw Cycles of Subgrade in Water-Salt-Temperature Coupling Environment[J]. Chinese Journal of Underground Space and Engineering, 2024 , 20(6) : 1894 -1903 . DOI: 10.20174/j.JUSE.2024.06.15

References

[1] 陆化普.交通强国建设的机遇与挑战[J].科技导报,2020(9): 17-25.(Lu Huapu. Opportunities and challenges in the construction of transportation power[J]. Science and Technology Review,2020(9): 17-25. (in Chinese))
[2] 王遵亲.中国盐渍士[M].北京:科学出版社,1993. (Wang Zunqin. Chinese Salted Scholars[M]. Beijing: Science Press, 1993. (in Chinese))
[3] 石玉林.中国1∶100万土地资源图土地资源数据[M].北京: 中国人民大学出版社,1991:3-7.(Shi Yulin. Land resource data of China's 1∶1,000,000 land resource map[M]. Beijing: China Renmin University Press: 1991.(in Chinese))
[4] 张旭东.吉林西部盐渍土水盐迁移的HTSPE多场耦合研究[D].长春:吉林大学,2018. (Zhang Xudong. Multi-field coupling of HTSPE for water and salt transport in saline soils in western Jilin Province[D]. Changchun: Jilin University,2018. (in Chinese))
[5] 徐攸在.盐渍土地基[M].北京:中国建筑工业出版社,1993.(Xu Youzai. Saline soil foundation[M]. Beijing: China Architecture and Building Press,1993.(in Chinese))
[6] 唐鑫,张吾渝,何蓓,等. 冻融循环作用下黄土动态回弹模量研究[J]. 地下空间与工程学报,2023,19(2):456-464, 485. (Tang Xin, Zhang Wuyu, He Bei, et al. Study on dynamic resilience modulus of loess under freeze-thaw cycles[J]. Chinese Journal of Underground Space and Engineering,2023,19(2):456-464, 485. (in Chinese))
[7] 张卫兵,李晓,雷过,等. 冻融—干湿循环下硫酸盐渍土的微观孔隙研究[J]. 地下空间与工程学报,2023,19(2):465-473. (Zhang Weibing, Li Xiao, Lei Guo, et al. Study on micro-pores of sulphate soils under freeze-thawing dry-wet cycle[J]. Chinese Journal of Underground Space and Engineering,2023,19(2):465-473.(in Chinese))
[8] 张磊.粗粒盐渍土冻融作用下水盐迁移及力学性能研究[J].当代化工,2018, 47(6):1162-1165. (Zhang Lei. Research on groundwater salt migration and mechanical properties of coarse-grained saline soils under freeze-thaw process[J]. Contemporary Chemical Industry,2018, 47(6):1162-1165.(in Chinese))
[9] 崔宏环,闫利,赵嘉. 季冻区高速铁路路基改良填料冻融性能研究[J].地下空间与工程学报,2023,19(1):343-350.(Cui Honghuan, Yan Li, Zhao Jia. Study on freeze-thaw performance of improved fillers for high-speed railway subgrade in seasonal freezing area[J]. Chinese Journal of Underground Space and Engineering, 2023, 19(1):343-350.(in Chinese))
[10] Bouyoucos G J. Effect of temperature on movement of water vapor and capillary moisturein in soils[J]. Journal of Agricultural Research, 1915, 5(4): 141-172.
[11] Yamabe T, Neaupane K M. Determination of some thermo-mechanical properties of sirahama sandstone under subzero temperature condition[J]. International Journal of Rock Mechanics & Mining Sciences, 2001, 38(7): 1029-1037.
[12] Morgenstern N R. An introduction to frozen ground engineering[J]. Journal of Cold Regions Engineering, 1997, 11(2): 167-168.
[13] Mageau D W, Morgenstern N R. Observations on moisture migration in frozen soils[J]. Canadian Geotechnical Journal, 1980, 17(1): 54-60.
[14] 王海涛,张远芳,成峰,等. 冻融循环作用下盐渍土抗剪强度变化规律研究[J]. 地下空间与工程学报,2016,12(5):1271-1276. (Wang Haitao, Zhang Yuanfang, Cheng Feng, et al. Study on variation law of shear strength of saline soil under freeze-thaw cycle[J]. Chinese Journal of Underground Space and Engineering, 2016,12 (5):1271-1276.(in Chinese))
[15] 赵刚,陶夏新,刘兵.原状土冻融过程中水分迁移试验研究[J].岩土工程学报, 2009, 31(12):1952-1957.(Zhao Gang, Tao Xiaxin, Liu Bing. Experimental study on water transfer of undisturbed soil during freeze-thaw process[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(12):1952-1957. (in Chinese))
[16] 赵刚,陶夏新,刘兵.重塑土冻融过程中水分迁移试验研究[J].中南大学学报(自然科学版),2009, 40(2):519-525. (Zhao Gang, Tao Xiaxin, Liu Bing. Experimental study on water migration in remolded soil during freeze-thaw process[J]. Journal of Central South University (Science and Technology),2009, 40(2): 519-525. (in Chinese))
[17] 杨保存,刘新荣,汪为巍,等.阿拉尔市区道路盐—冻胀变形破坏机理与成因分析[J].塔里木大学学报,2009, 21(2): 1-6. (Yang Baocun, Liu Xinrong, Wang Weiwei, et al. Deformation and failure mechanism and Cause analysis of road salt-frost heave in Alar City[J]. Journal of Tarim University,2009, 21(2): 1-6. (in Chinese))
[18] 巩丽丽,刘德仁,杨楠,等.季节性冻土区人工盐渍土冻胀特性研究[J].地下空间与工程学报,2018,14(增2):654-659.(Gong Lili,Liu Deren,Yang nan,et al.Study on frost heave characteristics of artificial saline soil in seasonal frozen soil area[J].Chinese Journal of Underground Space and Engineering,2018,14(Supp.2):654-659.(in Chinese))
[19] 刘军勇,任勇,张留俊.察尔汗盐湖地区盐渍土微观结构及其力学特性[J].地下空间与工程学报,2016,12(5):1277-1287.(Liu Junyong,Ren Yong,Zhang Liujun.The micro-structure of saline soil in Qarham salt lake and its mechanics characteristics[J].Chinese Journal of Underground Space and Engineering,2016,12(5):1277-1287.(in Chinese))
[20] 中华人民共和国交通部. 公路沥青路面施工技术规范(JTG F40—2004)[S]. 北京: 人民交通出版社, 2004. (Ministry of Communications of the People's Republic of China. Technical Specification for Construction of Highway Asphalt Pavement[S]. Beijing: People's Communications Press, 2004. (in Chinese))
[21] 中华人民共和国交通部.公路工程集料试验规(JTG E42—2005)[S].北京:人民交通出版社,2005.(Ministry of Communications of the People's Republic of China. Test Code for Aggregate of highway engineering (JTG E42—2005)[S]. Beijing: People's Communications Press, 2005. (in Chinese))
[22] 中华人民共和国交通部. 公路工程沥青及沥青混合料试验规程(JTG E20—2011)[S]. 北京: 人民交通出版社, 2011. (Ministry of Communications of the People's Republic of China. Test specification for asphalt and asphalt mixture in highway engineering[S]. Beijing: People's Communications Press, 2011.(in Chinese))
[23] 中华人民共和国交通运输部. 公路土工试验规程(JTG 3430—2020)[S]. 北京: 人民交通出版社, 2020. (Ministry of Transport of the People's Republic of China. Specification for highway geotechnical test[S]. Beijing: People's Communications Press, 2020.(in Chinese))
[24] 张玉,冉武平,李爽.强蒸发地区受路面覆盖效应的路基温湿度场表达[J].科学技术与工程,2019, 19(23): 239-245. (Zhang Yu, Ran Wuping, Li Shuang. Expression of subgrade temperature and humidity field affected by pavement coverage effect in strong evaporation areas[J]. Science and Technology and Engineering, 2019, 19 (23): 239-245.(in Chinese))
[25] Yang B C, Qin Z P, Zhou Q P, et al. Pavement damage behaviour of urban roads in seasonally frozen saline ground regions[J]. Cold Regions Science and Technology, 2020, 174: 103035.
[26] 杨保存,刘新荣,贺兴宏,等.盐渍土路基盐胀性试验研究[J].地下空间与工程学报, 2009, 5(3): 594-603. (Yang Baocun, Liu Xinrong, He Xinghong, et al. Experimental study on salt swelling of saline soil subgrade[J]. Journal of Underground Space and Engineering, 2009, 5 (3): 594-603. (in Chinese))
Outlines

/